Questions Asked on
November 12, 2013

Spanish
Can someone review my answers please 1. Alfredo dice que el viejo auto de Marisol todavía__ (ser/estar) seguro. Marisol piensa que quiere un auto nuevo pero no___ (ser/estar) segura. 2. Marta _____ (ser/estar) aburrida de pasar seis horas en la

Statistics
The monthly incomes from a random sample of workers in a factory are shown below. Monthly Income (In $1,000) 4.0 5.0 7.0 4.0 6.0 6.0 7.0 9.0 a. Compute the standard error of the mean (in dollars). b. Compute the margin of error (in dollars) at 95%

Chemistry
The Ksp of CaSO4 is 4.93× 10–5. Calculate the solubility (in g/L) of CaSO4(s) in 0.300 M Na2SO4(aq) at 25 °C

Chemistry
Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.4 M potassium chromate aqueous solution? In 1.4 M silver nitrate aqueous solution? In pure water?

life management skills
10. Using the information above, write your mission statement. It can take many forms: a song, picture (explain the picture), theme, or collage. Make it uniquely you. A mission statement should be short enough to commit to memory but contain those points

Trigonometry  Proofs
Prove that the average of the numbers n sin (n degrees) (n = 2, 4, 6, ... 180) is cot (1 degree) Hint: Express everything in terms of sin and cos. Can you rearrange the result into a form that allows you to use some of the identities you've learned? How to

English II
Read the following poem and answer the question that follows. "I Like to See it Lap the Miles" by Emily Dickinson I like to see it lap the miles, And lick the valleys up, And stop to feed itself at tanks; And then, prodigious, step Around a pile of

Math
You & a friend are at Paul & Elizabeth's Restaurant for a night of fine dining. You can choose among 2 appetizers, 4main dishes, & 3 desserts. Appetizer: soup or salad Main Dish: fish, chicken, beef, vegetarian Dessert: chocolate cake, apple pie, ice cream

Math... PLEASE HELP!!
If one angle in a pair of vertical angles measures 42 degrees and the other measures 2n4 degrees, which is the value of n? I got 23 degrees but I am not sure if it is correct. Please help me...

math
Scott had an average of 83 on his first three exams. He later scored an average of 92 on the next six exams. What is his average for all nine exams. Round to the nearest tenth if necessary.

Chemistry
Define minimum assay

Health (Ms. Sue)
What are the physical and mental effects of alcoholism for the blood alcohol concentration of 0. 1?

Advanced MicroEconomics
Construct a shortrun supply function for a firm whose shortrun cost function is C= = 0.04q^3 – 0.8q^2 +10q+5 3. The long run cost function for each firm is C = q^3 – 4q^2 + 8q. Find the industry’s long run supply curve. If the market demand curve

math 540
suppose it takes a college student an average of 5 minutes to find a parking space on the schools parking lot. Assume also that this time is normally distributed with a standard deviation of 2 minutes. What time is exceeded by approximately 75% of the

Math
A triangle lot is 170 ft on one side and has a property line of length of 800 ft. Find the area of the lot in acres

Math
3. What is 0.72 written as a simplified fraction? (1 point) seventytwo over one hundred one hundred over seventytwo thirtysix over fifty eighteen over twentyfive 4. Ms. Johnson’s class is having a pizza party. If there are 14 students and 7 pizzas

Beginner Spanish Check my answers please
Select the correct forms of ser or estar to complete the sentences. 1. Aquí __ las fotos de mis vacaciones en España. Mira, __ muy bonitas. están, son estoy, somos son, están soy, está 2. Aquí __ con mi familia en la playa cerca de Barcelona. Esta

mathematics
The members of a high school basketball team are driving from calgary to vancouver,which is a distance of 675km.Each tire of their van has a radius of 32cm.If the team members drive at constant speed and cover the distance in 6h 45 min,what is the angular

History
1. In 1916, Woodrow Wilson ordered General John J. Pershing to lead U.S. troops into Mexico to capture A. Francisco Madero. B. Victoriana Huerta. (C. Pancho Villa.) D. Porfirio Diaz. 2. The last of Wilson's Fourteen Points called for (A. the creation of a

motion problem
Ric can row upstream against a current at 6kph in 10 hrs while it will take him only 4 hrs going back. how far does he go upstream? (w/ solution pls... tnx)

7th grade accelerated math / pre algebra
write two equivalent expressions for the area of the figure the figure is a triangle inside the triangle it says x + 4 and the #16 is written along the length of one side of the triangle. The answer is 8(x +4) and 8x + 32 but I don't know how they got it

Chermistry
Define the following terms 1 Maximum assay 2 Percentage assay

PHYICS
One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to the tabletop. Two forces, both parallel to the tabletop, are applied to the stick in such a way that the net torque is zero. The first force has a

math
At the half time show, a marching band marched in formation. The lead drummer started at a point with coordinates (2,5) and moved 3 steps up and 1 step right. a: write a rule to describe a translation b: what were the coordinates of the drummers final

Fly Ball Lab  Projectile Motion Please HELP FAST!
In this lab, you will perform graphical and mathematical analysis on a tennis ball that is struck by a bat. The data required for this lab is the horizontal displacement of the ball from the location where it was hit to the point where it first strikes the

Government
Question 5. 5. The Tenth Amendment balances out national authority by (Points : 1) stating that states have first priority in those areas specifically not given to Congress. asserting that states’ rights trump national authority. limiting state function

math help please
jasper owns a small retail store as a sole proprietor. the business records show that the cost of the stores inventory items has been steadily increasing. the cost of the end of the year inventory is 200,000 and the cost of the beginning of the year

phyics
A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.60 x 105 Pa. Assuming that the top and bottom surfaces of the cap each have an area of 3.60 x 104 m2, obtain the magnitude of the force

Statistics
You are given the following information obtained from a random sample of 6 observations. Assume the population has a normal distribution. 13 14 17 14 17 15 a. What is the point estimate of µ? b. Construct an 80% confidence interval for µ. c. Construct a

US History
What does this excerpt from Common Sense by William Paine mean: But there is another and greater distinction for which no truly natural or religious reason can be assigned, and that is, the distinction of men into KINGS and SUBJECTS. Male and female are

AP Stats
Viruses are infectious agents that often cause diseases in plants. Different viruses have different potency levels, and this fact can be used to detect whether a new virus is infecting plants in the field. In a potency comparison experiment, two viruses

chemistry
Is CO2 a product of an acid/base reaction?

US History
What is Thomas Jefferson trying to say in this excerpt from the Declaration of Independence ? :The Right of the People to Control Their Government . . . We hold these truths to be selfevident, that all men are created equal, that they are endowed by their

Math
Two railroad tracks cross each other. If the measure of angle 1 is 3 times the measure of angle 2. What are the measures of angles 1,2,3, and 4? Explain and show your work please.

Algebra
Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree: 4; zeros: 1, 2, and 12i

math
patrica is a business owner who is trying to determine her cost of goods sold for 2012. shoe bought 20 units of inventory at $11, then 26 units at $9 and finally 18 units at $14. she sold 30 units in 2012 and uses the fifo for her inventory valuation. what

chemistry
a student was asked to prepare 100.0 mL of 0.0200 M solution of HCL from 0.400 M solution of HCL. in order to do this he measured 5.0 mL of 0.400 M HCL with a graduated cylinder, transfered this amount to a 100 mL beaker, added 95 mL of deionized water

business
Imagine this team is in a room together brainstorming and working on a team project. Using your experience and what you've learned this week, suggest a design for a room that would facilitate team interaction. In the team discussion area, respond to the

math
Sheila is going to divide a 36inch piece of ribbon into 5 equal pieces.She says each piece will be 7 inches long.whats the error?

physics
A 72.5 kg skier is going straight down a 31.1o slope. Each ski has a contact area with the snow of 0.137 m2. Calculate the pressure that the snow exerts on each ski.

Chem
Please help I have no idea how to do this. There are three different dichloroethylenes (molecular formulaC2H2Cl2), which we can designate X, Y, and Z. Compound X has no dipole moment, but compound Z does. Compounds X and Z each combine with hydrogen to

GEOMETRY
The lengths of the sides of a quadrilateral are 2011 cm, 2012 cm, 2013 cm and x cm. If x is an integer, what is the largest possible value of x? Help is badly needed. my teacher frightens me huhu. please

geometry
Given the equation of the circle (x – 9)2 + y2 = 484 , where is the center of the circle located at?

Algebra
1. At the grocery store checkout, you watch at the register as it rings up your purchases and coupons. The prices were as follows: $2.95 $1.19 $4.61 $1.74 $3.04 $8.83 $1.16 – $0.75 (coupon) – $1.00 (coupon) The register gives your total bill as $21.77.

Chemistry
A saturated solution of calcium chromate (CaCrO4) freezes at 0.10 C. What is Ksp for CaCrO4? Assume complete dissociation. The density of the solution is 1.0 g/mL.

math
1.The remains of an old campﬁre are unearthed and it is found that there is only 80% as much radioactive carbon14 in the charcoal samples from the campﬁre as there is in modern living trees. If the halflife of carbon 14 is 5730 years, how long ago

chemistry
Two new metallic elements have been discovered, Cimium (Ci) and Sadowium (Sd). Both the pure elements and their solutions form simple cubic lattices. The bond strengths of the CiCi and SdSd bonds are known, but not the CiSd bond. Bond Bond Energy

Partial Differential Equations
At the HeNe laser wavelength (L= 632.8 nm) the refractive indices of crystal quartz are n o = 1.54264 and n e = 1.55171 calculated from its Sellmeier equation. The laser is incident from the air onto the surface of crystal quartz at an angle of incidence

phyics
A simple pendulum is made from a 0.781mlong string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then released from rest. After the ball is released, how much time elapses before it attains its

Physics Important please
A yoyo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yoyo has a radius R1 , the two outer disks have radii R2 . A string is wrapped around the inner part. Someone pulls on the

Biology
In DNA fingerprinting, the DNA probe that is used is ______to the DNA sequence of the repeats in the sample? im guessing amplify????

math
write to show how to make a ten then add

chemistry
a 60.0 g sample of chromium at 82.0 degrees celsius was place in 80.0 g of water. Assume there is no loss of heat to the environment. What is the final temperature of the water and chromium? The initial water temperature was 24.0 degrees celsius

History!
Can someone Please help me!? 1. What resulted from Parliament’s lack of understanding of the needs of the colonists? (1 point) a study to prioritize the needs in the colonies sending more British representatives to America the beginnings of

phyics
A 11.7kg uniform board is wedged into a corner and held by a spring at a 50.0° angle, as the drawing shows. The spring has a spring constant of 230 N/m and is parallel to the floor. Find the amount by which the spring is stretched from its unstrained

Physical Science
17. Why can't carbon14 be used to determine the age of fossils that are several hundred thousand years old? Please and thank you!

phyics
An object on a vertical spring oscillates up and down in simple harmonic motion with an angular frequency of 25.1 rad/s. Calculate the distance d by which the spring stretches from its unstrained length when the object is allowed to hang stationary from

algebra
What is the xintercept of the line represented by the following equation? 5x  37 = 2 A. (0, 2/3) B. (2/3, 0) C. (0, 2/5) D. (2/5, 0)

phyics
A hand exerciser utilizes a coiled spring. A force of 86.9 N is required to compress the spring by 0.0231 m. Determine the force needed to compress the spring by 0.0432 m.

Phyics
One of the concrete pillars that supports a house is 1.9 m tall and has a radius of 0.55 m. The density of concrete is about 2.2 x 103 kg/m3. Find the weight of this pillar in pounds (1 N = 0.2248 lb).

Math
This unfortunate event happened to me when my two children were little. Each of them had a friend over for lunch. After lunch, we had popsicles for dessert. There were 9 popsicles in the freezer & 3 flavors: 3 grape, 3 cherry, & 3 orange. What is the

physics Important please
A potential difference of 12.0V is maintained across an electrical device with a resistance of 10.0Ω. What total charge passes through a cross section of wire attached to this device over a period of 4.00s?

Psychology
9 Dr. Kyle shared the newspaper clipping with the class. â€œThis is an unusual case, but I believe that punishment phase of the trail would have been different in another state. The crime was committed, but the defendant is not in touch with reality

Accounting
The comparative statements of Lucille Company are presented here. LUCILLE COMPANY Income Statements For the Years Ended December 31 First number are 2012 2012 then 2011 Net sales $1,890,540 $1,750,500 Cost of goods sold 1,058,540 1,006,000 Gross profit

physics Important please
A metal wire has a resistance of 8.00Ω at a temperature of 20C. If the same wire has a resistance of 8.40Ω at 70C, what is the resistance of this wire in ohms when its temperature is −10C?

math
you have a subscription to a music website that allows you to download 25 songs from the site each month. You are charged an additional fee after the first 25 songs are downloaded. After downloading 28 songs, you paid a total of $34.80. After downloading

canadian history
what was the way of life or lifestyle like for fur traders and settlers at red river? how is it different from our lifestyles today?

math
you have a subscription to a music website that allows you to download 25 songs from the site each month. You are charged an additional fee after the first 25 songs are downloaded. After downloading 28 songs, you paid a total of $34.80. After downloading

math
Janise is a sole proprietor owning a small specialty store. the business records show that the cost of the stores individual inventory items have been steadily increasing. the cost of the end of the year inventory is 125,000 and the cost of the beginning

Science
In DNA fingerprinting, the DNA probe that is used is ______to the DNA sequence of the repeats in the sample? im guessing amplify????

Earth and Environmental Science
How much does the amplitude of the waves increase between an earthquake that measures 4.2 on the Richter scale and an earth quake that measures 6.2 on the Richter scale?

math
The area covered by water lilies in a pond you own doubles in size every day. If allowed to grow the plants would cover the entire pond surface in 30 days. You had decided to do nothing until the pond is ½ covered. a. On what day will the pond be ½

Algerbra
2(1.3x + 9)=2.4x + 22

Grammar
Is the sentence below grammatically correct? The more the area is painted, the less the amount of paint remains.

math
1. The world population in 1992 is 5.42 billion. If its population doubled every a. 41 years, what would its population be in 41 years? b. 41 years, what would its population be in 82 years? c. 82 years, what would its population be in 164 years?

motion problem
A man rowed 30km downstream. it took him 2hrs more time in going back than in going downstream. if the current is 2kph, what is his speed in still water? (with solution pls... tnx)

math
2. A country has a doubling time for its people of 20 years. If it ends up with 80 million people after 60 years, how many people did it have to start with (in this questions)?

math
Lane French had a bad credit rating and went to a local cash center. He took out a $100 loan payable in two weeks at $115.

college physics
A weightlifter has a basal metabolic rate of 92.4 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long does it take him if he's

statistics
The average gasoline price of one of the major oil companies has been $3.20 per gallon. Because of cost reduction measures, it is believed that there has been a significant reduction in the average price. In order to test this belief, we randomly selected

Physics
n,bhyguftchg vb

Math
Hannah plans on going hiking most of the day. It is recommended that she takes at least 3 liters of water with her. She packed 3 water bottles. The bottles she brought are cylinders with a radius of 3cm and a height of 30cm. What is the volume of one

Math
Mark and Sandy are participating in a BikeaThon for charity. Mark oversleeps, so Sandy gets a one hour head start and bikes at a speed of 12 miles per hour. To catch up to Sandy, Mark decides that he needs to bike at a speed of 15 miles per hour. 1. Make

math
Janise is a sole proprietor owning a small specialty store. the business records show that the cost of the stores individual inventory items have been steadily increasing. the cost of the end of the year inventory is 125,000 and the cost of the beginning

math
Janise is a sole proprietor owning a small specialty store. the business records show that the cost of the stores individual inventory items have been steadily increasing. the cost of the end of the year inventory is 125,000 and the cost of the beginning

physics
An archer standing a horizontal distance d=50m away from a tree sees an apple hanging from the tree at h=12m above the ground. The archer chooses an arrow and prepares to shoot. The arrow is initially 1.5m above the ground. Just as the archer shoots the

Accounting
The following stockholders' equity accounts arranged alphabetically are in the ledger of McGrath Corporation at December 31, 2011. Common Stock ($10 stated value) $1,500,000 Paidin Capital from Treasury Stock 6,000 Paidin Capital in Excess of Stated

math
jasper owns a small retail store as a sole proprietor. the business records show that the cost of the stores inventory items has been steadily increasing. the cost of the end of the year inventory is 200,000 and the cost of the beginning of the year

math
acacia company had inventory of 100,000 on December 31, 2012. other information is as follows: purchases $1,500,000 sales 3,000,000 inventory 1/1/2012 300,000 what is the amount of acacia cost of goods sold for 2012? do you add in the sales for the year?

MATH
Explain how you would calculate the ecological footprint of the state that you live in if you knew the average ecological footprint of a resident in your state? IDK??

Advanced MicroEconomics
In a competitive market, there are two groups of firms. For every firm in group A, the longrun ATC curve is Ushaped and intersects the longrun MC curve when ATC = 20 and output is 4. There is an unlimited number of firms in group A. Every firm in group

Advanced MicroEconomics
In a competitive market, there are two groups of firms. For every firm in group A, the longrun ATC curve is Ushaped and intersects the longrun MC curve when ATC = 20 and output is 4. There is an unlimited number of firms in group A. Every firm in group

English
In the sentence They are not nuts. They is the subject Are is the verb What is the predicate word?

Math
Mark and Sandy are participating in a BikeaThon for charity. Mark oversleeps, so Sandy gets a one hour head start and bikes at a speed of 12 miles per hour. To catch up to Sandy, Mark decides that he needs to bike at a speed of 15 miles per hour. 3.An

Math
Write as a mixed number. 1. 13/11 2. 33/6

algebra
Justin races his bicycle for 90M . A wheel of his bicycle turns 45 times as the bicycle travels this distance. What is the diameter of the wheel?

Algebra
Find the coordinates of the quadrilateral abcd after a dilation with a scale factor of 2. a(2,0), B(2,2), C(5,2), D(5,0)

Math
Write as an improper fraction. 1. 7 3/5 2. 12 1/2 3. 41 4/6

Math
Simplify each of the following. 1. 42/48 2. 15/35 3. 119/210

Math
One of two complementary angles has a measure that is five times that of the other. Which equation could be used to find x, the degree measure of the smaller angle? A) 5x=90 B) x+5x=90 C) 5x=180 D) x=5x=180 I chose A but I wasn't sure if I was correct.

physic
A 1000kg satellite travels with an orbital speed of 500 m/s around a planet at an orbital raduis of 8000 km. What is the mass of the planet

everest
What number is 45% of 680

English 2
Is this correct? To Whom It May Concern, In regards to the Memorial Day fiasco aboard you cruise ship, Star Princess. We would like to offer our sincere apology for our part in the mishap. While we do not plan on taking legal action against you or the

PreCalculus
Can someone please help me with this problem? De Moivre’s theorem states, “If z = r(cos u + i sin u), then zn = rn(cos nu + i sin nu).” • Verify de Moivre’s theorem for n = 2. a. Provide a correct proof that includes written justification for

Math
Please help. I don't get this How to do it fast and easy? 2000(2000^2000)

Healthcare Statistic
Distribution by site, sex, race, and time period of all cancers in your healthcare facility.

Algebra
What is the equation of the line that is perpendicular to y = 7/9x + 15 and goes through the point (1, 2)? A. 9x + 7y = 5 B. 9x + 7y = 5 C. 9x + 7y = 23 D. 9x + 7y = 23 My work: y  2 = 7/9 (x + 1) y  2 = 7/9x + 7/9 2 + 7/9 = 2 7/9 y = 7/9x + 2 7/9 I'm

computer science
Does anyone know Access 2010 queries criteria? I have a specific question...

English
1. What animal do you keep? 2. What pet animal do you have? 3. What pet do you keep? 4. Which pet do you have? 5. What pet do you have?  I have a pet turtle. (Which question is suitable for the answer?)

SCIENCE
how can I transcibe this into mRNA? DNA T A C G A C T A A C G T C A G T A G

physics1111
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 14 rubs a distance of 7.50 cm each and with a frictional force averaging 30.0 N, what is the temperature increase? The

proposition/ratio
8/3=36/d 4/n=15/10 15/4=9/2r 9/4n=1.5/7 n3/16=5/8 7/8=35/w1

chem
A cars gas tank holds 15.2 gallons of gasoline (density = 0.66 g/ml). How many pounds of gasoline are present in a full tank?

physics
A parachutist jumps out of airplane with an initial speed of 2.0 m/s downwards. There is a force of air resistance equivalent to 305 N. Determine the parachutist’s mass if it takes a total of 3 seconds for him to travel 30 m downwards.

5th grade math parent
Hi the problem reads.......give an example that shows how to use.the distributive property to multiply a number by a sum. All of the numbers you use should be mixed numbers or fractions.........PLEASE HELP!

Physics
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 24 kg object on the Earth? The acceleration of gravity is 10m/s2 .

Algebra
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f. Degree 5; zeros: 9, 3+5i, 9i

Principles of Finance
.A thirty year US treasury bond has a 4.0 percent interest rate.In contrast, a ten year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the longer maturity bond. Investors expect

College Level Calculus
Each orange tree grown in California produces 720 oranges per year if not more than 20 trees are planted per acre. For each additional tree planted per acre, the yield per tree decreases by 15 oranges. How many trees per acre should be planted to obtain

algebra
There are twodigit perfect squares whose square roots are the same as their units digits. What is the sum of these squares?

Physics Important please
A yoyo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yoyo has a radius R1 , the two outer disks have radii R2 . A string is wrapped around the inner part. Someone pulls on the

CHEMISTRY
When 50.0 cm3 of 0.100 mol dm3 AgNO3 is mixed with 50.0 cm3 of 0.0500 dm3 HCl in a polystyrene cup, the temperature increases from 20.00°C to 20.35°C. Assume that the specific heat capacity of the solution is the same as that of water, and that the

Math
Fill in the blank so that the numbers are evenly spaced. 101, _____, _____,1001

algebra
Which type of correlation would you expect to see between the distance traveled and the time it takes to travel that distance? A. positive correlation B. negative correlation C. no correlation idk why this question is confusing me, but it is

Algebra
Solve the inequality. f(x)> 0, where f(x) =x(x+1)(x1)(x3)

Precalculus 12
P(t)=t^420t^320t^2+1500t+15000 when P is 24000 find t

math
Janise is a sole proprietor owning a small specialty store. the business records show that the cost of the stores individual inventory items have been steadily increasing. the cost of the end of the year inventory is 125,000 and the cost of the beginning

calculus
you stand on the shore of a circular lake and you wish to reach the exact opposite your current position. you can swim 20 feet per minute and run 50 feet per minute. what path should you take to reach your destination as quickly as possible?

math
Janise is a sole proprietor owning a small specialty store. the business records show that the cost of the stores individual inventory items have been steadily increasing. the cost of the end of the year inventory is 125,000 and the cost of the beginning

math
acacia company had inventory of 100,000 on December 31, 2012. other information is as follows: purchases $1,500,000 sales 3,000,000 inventory 1/1/2012 what is the amount of acacia cost of goods sold for 2012?

English
1. Your body temperature is a little higher than usual. 2. Your body temperature is a little higher than your temperature is usual. (Does #1 mean #2? Is #2 the full form of #1?) 3. He is as tall as I. 4. He is as tall as me. (Are both OK? Which one is

math
patrica is a business owner who is trying to determine her cost of goods sold for 2012. shoe bought 20 units of inventory at $11, then 26 units at $9 and finally 18 units at $14. she sold 30 units in 2012 and uses the fifo for her inventory valuation. what

chemistry
At a certain Pressure and Temperature one liter of CO2 weigh's 1.95g. What is the mass of one liter of C4H10 at the same temperature and pressure

math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 µm. Find this earthquake's magnitude.

Math
Marlon has 4 baseball cards, Jake has 4 baseball cards and Sam has 3 baseball cards. Can you write a multiplication sentence to find how many baseball cards they have altogether? Explain.

chemistry
What is the final volume of NaOH solution prepared from 250.0mL of 0.800M NaOH if you wanted the final concentration to be 0.200M

algebra
If a Realtor earns ^% commission for selling a $70,000 home, what is the amount of the commission?

math
how to write 7/8 as a decimal

KINEMATICS (PHY)
A turntable is a uniform disc of mass m and radius R. The turntable is initially spinning clockwise when looked down on from above at a constant frequency f0. The motor is turned off at t=0 and the turntable slows to a stop in time t with constant angular

Physical education
we have a lithium atom (atomic mass m = 6 amu) connected to two very much more massive atoms, as illustrated in the drawing below. We can pretend that the massive atoms don¡¯t move. The spring constants k1 and k2 are 73 N/m and 27 N/m, respectively. What

algebra
If refreshments cost $45 for 18 people, at the same rate how much would refreshments cost for 26 people?

PreCalculus
When you do implicit differentiation, how does D = √(x^2 + 8x + 12) turn into dD/dt = [(x + 4)(dx/dt)]/√(x^2 + 8x + 12)? please explain...I don't even understand where the (x+4) comes from. D means distance, but that's irrelevant

KINEMATICS (PHY)
A pulley of mass mp , radius R , and moment of inertia about the center of mass Ic=12mpR2 , is suspended from a ceiling. The pulley rotates about a frictionless axle. An inextensible string of negligible mass is wrapped around the pulley and it does not

Physics
A coin rests 18.0 cm from the center of a turntable. The coefficient of static friction between the coin and turntable surface is 0.390. The turntable starts from rest at t = 0 and rotates with a constant angular acceleration of 0.850 rad/s2. (b) At what

spelling words
Hello my name is Travon I need help on making my spelling words into two sendence liks See the green frog. He is sitting on the log

physics
a bullet of mass 0.04kg moving with a speed of 90m/s enter a heavy wooden block is stopped after a distance of 60cm.What is the avg resistive force exertes by the block or the bullet

PreAlg
write a translation rule that maps point d(7 3) onto point d'(2 5)

physics
a bullet of mass 0.04kg moving with a speed of 90m/s enter a heavy wooden block is stopped after a distance of 60cm.What is the avg resistive force exertes by the block or the bullet

prealg URGENT
triangle ABC has coordinates. A(1,4); B(3,2); and C(4,2). Find the coordinates of the image A'B'C after a reflection over the X axis. (Show your work)

physichelp 
one of the main battery of cannons protecting the entrance to San Francisco Bay were able t horizontally propel 7.3 kg cannon balls with an average speed of 26.2m/s. if the height of the cannon emplacement were 112m above San Francisco Bay, a. how far from

Language arts help!!
1. What was Dove doing during the Boston Tea Party? (1 point) drinking tea selling tea stealing tea 2. Who were the minute men? (1 point) local men who wanted to fight against the British British soldiers who were trained to kill traitors the army for the

algebra
A Realtor has 6% commission, he sells a home for $70,000, how much is the commission?

Chemistry
What molecular formula can you deduce from a mass spectrometry of 156 m/z. And how do you get that formula? Steps on how to get the formula is much appreciated! Thanks!

English
Use the following verbals according to the functions provided. 1. scanning as a predicative nominative 2. polluting as a participle 3. to exaggerate as an appositive 4. composing as an indirect object 5. to demonstrate as a predicative nominative

math
How do I find the derivative of ⌠lnx ⌡π cos(e^(t))dt The question above is asking for the derivative of the integral cos(e^(t)) from pi to lnx

physics
a 36 kg child slides down a slide at a height of 2.5 m at at velocity of 3 m/s. how much energy was transferred by friction as she slid down the slide?

science
if there is 63 protons,89 neutronsand 60 electrons so what is his net charge

4th grade math
Joshua has 3 quarters. alex has 10 more than 2 times as many quarters as joshua. write an expression for how many quarters alex has?

Math
Carl shades a row in the multiplication table.the product in the row are all even.the ones digits in the products repeat 0,4,8,2,6.what row does Carl shade?

Math
Jenna says that no row or column contains product with only odd numbers.do you agree? Explain.

math geometry
how can i prove in geometry proofs that something is a midpoint of a line? thanks

Algebra
Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree: 4; zeros: 1, 2, and 12i

4th grade math
max has 5 more than twice as many cookies as chris. write an expression that shows the number of cookies max has if chris has C cookies.

4th grade math
Emma seems M movies in 3 weeks. what is an expressions for the number of movies emma sees in 12 weeks.

physics
when 1240 J of heat are added to one mole of an ideal monatomic gas its temperature increases from 273K to 277K. Find the work done by the gas during the process.

algerbra 2
There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that it will rain on both Saturday and Sunday

Chemistry
Measuring the conductivity of an aqueous solution in which 0.0200 mol CH3COOH has been dissolved in 1.00 L of solution shows that 2.96 % of acetic acid molecules have ionized to CH3COO ions and H3O+ ions. Calculate the equilibrium constant for ionization

math
simplify (x^23x+6)(36x^218x+6/6) (x^23x+6)(6(6x^23x+1/6) cancel the two 6's in the second part of equation x^23x6x^2+3x1 5x^21 Is This correct? Thanks

algebra 2
In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at random. If he puts each clock back with the rest of the shipment before selecting the next one, what is the probability that all

Biochemistry
Please help! i was wondering why a genome size determined in a lab would be smaller than that of the actual. thanks

biology
polar molecule are soluble in water. how does this activity demonstrate polarity of molecule that contain the OH group. our activity was to do an experiment mixing 2 diff liquids together to see if they dissolve and tell if its polar or nonpolar. 1. water

Biology
Please help! i was wondering why a genome size determined in a lab would be smaller than that of the actual. thanks

Biology ! Please help!
Why do chromosomes form and what kind of proteins do they combine with?

physics
when 1240 J of heat are added to one mole of an ideal monatomic gas its temperature increases from 273K to 277K. Find the work done by the gas during the process.

physics
A 62kg woman is standing on a scale while riding in an elevator? As the elevator continues to move up, it has a constant velocity . what is the reading on the scale.?

Math
A projectile is launched from a cannon that sits 4 feet off the ground at an initial velocity of 120 ft/sec. Find the position function and how long is it before the projectile hits the ground? I got 16t^2 +120t+4 for my position function, but I'm not

Physics
Massless ropes A, B, C are connected together as shown and support a mass of 100 kg. Rope A is horizontal and ties to the wall, rope b is tied to the ceiling and rope c is vertical. What are the tensions in the ropes.

Math
Describe in words, a situation involving this equation that could be represented 4t+8=3(3.5t). t= miles Mark and Sandy wanted to have a race. Mark has an 8 mile head start and goes 4 miles per hour. Sandy decides to go 3 times as fast and goes 3.5 miles

Physics
A machine swings a mass of 1kg connected to a massless rope in a vertical circle so that the speed of them mass is constant at 8 m/s. The rope is 1.0 m long, and the center of the circle is fixed at all times. a) Find the acceleration of the mass with

physical/earth science
what important nonmetal is in brilliant yellow acrylic paint that contains titanium dioxide

math
In a random sample of 150 students, 60 ride the bus to school, 54 ride in carpools and 36 walk. It is predicted there will be 800 students in school next year. How many will need bus transportation?

chemistry
Draw the compound that would produce 4ethyl3hexanol in the presence of a nickel catalyst and hydrogen.

Math
There are 5 red ,3 green and 4 blue marbles in a bag.what would be the chance of getting a red marble if the marble was pulled out of the bag without looking?

math
3/10 of the passengers in a bus were men. 2/7 of the remainder were women and the rest were children. I f there were 50 passengers in the bus, how many more children than women were there? 10 UNITS= 1 UNIT= 5 UNITS 2 UNITS= 3 UNITS 3 UNITS= THEREFOR,

math
A cafeteria has 5 turkey sandwiches, 6 cheese sandwiches, and 4 tuna sandwiches. There are two students in line and each will take a sandwich. What is the probability that the first student takes a cheese sandwich and the next student takes a turkey

4th grade math
Analee earjs $45 for every 5 hours of work. how much money can she earn for H hours of work

science
What is the height (in miles) for a ( television satellite to be placed above the equator of Earth to rotate at the same speed as Earth and be able to relay pictures that have been beamed to it back to another place?

Health help
what is a good title for about inhalants that would make seventh graders want to listen to you?

MATH
FreddieMac reports that the average rate on a 30year fixed rate mortgage is 3.92% as of January 2012. This is down from 4.76% in January 2011 and 5.03% in January 2010. If you have a $225,000, 5%, 30year mortgage, how much interest will you save if you

4th grade math
5 less than three times the number of chipmunks

Physics
laf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. A friend throws Olaf a ball of mass 0.400kg that is traveling horizontally at 11.5m/s . Olaf's

Physics
In a 1dimensional problem, a single force acts on a 10 kg object and is given the equation F=ax+b where a=250 N/m, b=25 N, x is position of object. There is a force acting on the object while that object moves from x=0 to x=2 lasting 3 sec. 1) What is the

englishproject
Hi!I am doing project, its about making the world a better place for humans. I have to join organizations online and subscribe t email lists to get action updatesissues like antiwar/peace, social justice and environments, animals, food water and

Math
I am a two digit number less than 40. You say me when you count by fives .the Sumer of my digits is 7. What number am I?

Math
Terrence normally uses onefourth teaspoon of dried basil to make his own salad dressing. He decides to change the recipe and include extra dried basil. He decides that the flavor is perfect when including a total of fiveeighths teaspoon. Write an

Math
Probability There are two boxes...the first box has 3 black balls and 1 blue ball in it. The second box has 6 black balls and 2 in blue balls in it. a. Which of the following two boxes would you choose if you were picking 1 ball and wanted black? Justify

phyics
The wheels, axle, and handles of a wheelbarrow weigh W = 53 N. The load chamber and its contents weigh WL = 547 N. The drawing shows these two forces in two different wheelbarrow designs. To support the wheelbarrow in equilibrium, the man’s hands apply a

science
ok this is juist the first question.... 1)When evolution was first proposed, which of the following was used as evidence to support the idea? A)observations of nature B)laboratory experiments C)extensive fossil collections D)genetic sequences plzz help!!!!

us history
I need a word that means.. a governments position on an issue

phyics
A 1390N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960N crate hangs from the far end of the beam. Using the data shown in the figure, find (a) the magnitude of the tension in the wire and the

Math
Dan went to the bookstore .he has spent $17.00 of his $20.00 already .he needs to buy a few disk.how many can he buy with his remaining money if each disk cost 90 cents ?

phyics
An object in simple harmonic motion has an amplitude of 0.202 m and an oscillation period of 0.620 s. Determine the maximum speed of the motion

phyics
A 0.20kg object is attached to the end of an ideal horizontal spring that has a spring constant of 120 N/m. The simple harmonic motion that occurs has a maximum speed of 1.1 m/s. Determine the amplitude A of the motion.

phyics
An object on a vertical spring oscillates up and down in simple harmonic motion with an angular frequency of 25.1 rad/s. Calculate the distance d by which the spring stretches from its unstrained length when the object is allowed to hang stationary from

phyics
When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum is vibrating with an amplitude of 5.0 x107 m and a maximum speed of 3.3 x103 m/s. (a) What is the frequency (in Hz) of the eardrum's vibrations? (b)

English
What is the predicate word in this sentence Peanut butter is rich in protein? Rich or protein?

phyics
A block of mass m = 0.510 kg is fastened to an unstrained horizontal spring whose spring constant is k = 85.3 N/m. The block is given a displacement of +0.112 m, where the + sign indicates that the displacement is along the +x axis, and then released from

Spanish Help
1. ¿Te divertiste anoche en el baile? Sí, pero ____ demasiada gente. Era imposible bailar bien. A. era B. habían C. había D. eran I said C 2. En una fiesta familiar, ¿quién es la primera persona que _____ y sale? Yo, porque siempre tengo que

phyics
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 175 N/m. The motion of the object on spring 1 has twice the amplitude as the motion of the object on spring 2.

math
Edgar used 10 x d to represent the number of pennies in d dollars? Is this reasonable?

Physics please HELP
A meteor is approaching. Assume that the meteor started very far away from the earth and just grazes the earth. You may ignore all other forces except gravitational force between earth and meteor. Assume that mass of the meteor is much smaller than mass of

Algebra
analyze the graph f(x)=(x2)^3(x3)^2(x4) a)end behavior: find the power function that the graph of f resembles for large values of absolute value of x

Finance
Which of the following statements is true regarding social security retirements benefits A. Not all occupations are covered B. It attempts to replace 42% of you average earnings. C. All of the aove

Algebra
use remainder theorem to find the remainder when f(x)) is divided by x+1 f(x)=x^4+8x^3+12x^2

Physics Important please
A yoyo of mass m rests on the floor (the static friction coefficient with the floor is mu ). The inner (shaded) portion of the yoyo has a radius R1 , the two outer disks have radii R2 . A string is wrapped around the inner part. Someone pulls on the

Algebra
2. The following formula relates three quantities: Force (F), mass (m), and acceleration (a). F = ma a. Solve this equation for a. b. If the force is F = –25 units and the mass is m = 10 units, find the acceleration, a. c. If the force is F = 25 units

Algebra
use factor theorem to determine whether x+2 is a factor of f(x). if it is, write f(x) in factored form. f(x)=9x^3+24x^2+19x+14; x+2

math
2. A bacteria population grows exponentially with growth rate k=2.5 how long it would take for the bacteria population to double its size?

math
3. The halflife of a certain drug in the human body is 8 hours how long it would take for a dose of this drug to decay to 0.1% of its initial level?

English
I have a doubt in this statement: We've been best friends for years and still we're going to be more than best friends 1)What is the simple predicate in this sentence?

math
subtracting positive rational numbers 1 1/2  2

math
subtracting negative rational numbers 0.25  (1.50)=

math
Tristan buy b boxes of granola that cost $4 each. He also buy one box of crackers that cost 3/2. Write equivalent expression for the total amount Tristan spends

Science help!!!
Describe the evidence that supported the hypothesis of Continental Drift.

math
Four children are sharing 10 brownies so that each one will get the same amount. How much can each child have?

Partial Differential Equations
Problem 4.4 Suppose n o and n e are given. In (a) you only need to find the magnitude of the group velocity. Problem #2 in HW 10 may be helpful. You can also directly use the definition of group velocity, i.e., v g = triangle k w (k), taking into account