Questions Asked on
April 20, 2015

Math
Find the next three terms in the sequence. 30,22,14,6.... A. 3,12,21 B. 1,8,15 C. 1,2,3 D. 2,10,18 D? Thanks.
asked by Sabrina C. 
Physics  Dynamics
A combat jet lands on a carrier with a horizontal velocity of 50 m/s. A stopping mechanism exerts a horizontal force of Tx = 10,000 V N, V, being the velocity of the jet in m/s. The mass of the jet is 6500 Kg. a.) What is the the maximum force that the
asked by Ronnier 
Business Statistics
FORMAT INSTRUCTIONS Each question requires the use of MINITAB to solve. Please submit your work as a WORD or similar document. You can prepare this by cutting and pasting the results generated in MINITAB to such a document. Then you can edit that file with
asked by Amer 
algebra (urgent help needed)
1. a chemical compound requires 8 ounces of chemical a and 12 ounces of chemical b. a mixture contains 24 ounces of chemical a and 30 ounces of chemical b. how can you fix the mixture to make the chemical compound?
asked by jasp 
Physics
A person exerts a tangential force of 34.8 N on the rim of a diskshaped merrygoround of radius 2.60 m and mass 152 kg. If the merrygoround starts at rest, what is its angular speed after the person has rotated it through an angle of 30.4°? (in rad/s)
asked by Madison 
Math
A gas station charges $2.19 per gallon of gas. Use function notation to describe the relationship between the total cost C(g) and the number of gallons purchased g. A. C(g)=2.19g B. g=2.19C(g) C. C(g)=g+2.19 D. C(g)=2.19g C? Thanks
asked by Sabrina C. 
Math
Please help with trying to solve the following; in particular how to get the correct equation set up. The perimeter of a square is 64 cm and the area of the square is 192 cm. What is the length of width of the rectangle? Thank you for your help.
asked by Cassandra 
History
Why did the U.S. not want to support decolonization from World War II Cold War, 1940s1950s
asked by TayB 
Physics
A 10.4g CD with a radius of 5.85 cm rotates with an angular speed of 33.8 rad/s. What is its kinetic energy? (in J) I need help with this question. I thought you would just use K=1/2mv^2 but when I use m=0.0104kg and v=33.8 I get 5.94 which isn't the
asked by Madison 
Physics
After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of = 3.18 m/s. To reach the rack, the ball rolls up a ramp that rises through a vertical distance of = 0.510 m. What is the linear speed of
asked by Madison 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→3 (x^2+3x−18)/(x−3)
asked by TayB 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (e^9x−1−9x)/(x^2)
asked by TayB 
Calc 1
Use l'Hospital's Rule to find the exact value of the limit. lim x→∞ (1+4/x)^x
asked by TayB 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (7x−sin 7x)/(7x−tan 7x)
asked by TayB 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (sin^−1 x)/7x Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim
asked by TayB 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0+ (sinx ln2x)
asked by TayB 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→∞ x^7e^−x^6 Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim
asked by TayB 
maths
One number is greater than another by 4, their sum is 32. What are the two numbers? Write a function which could solve this for any two numbers (x and y) with any difference between them.
asked by Jordan 
chemistry
How many moles are their in 10.6 L os SO2 ?
asked by jerry 
Physics
component of a vector along the two given lines lie in the vertical downward direction making an angle 30 degree with the vertical line are 2 and 4 units.find the magnitude of the original vector and it's direction.
asked by Bibhraj 
Business Stats
In a maths class the bottom 16% of student are given an F grade. If the class mean is 63 and standard deviation is 18, what score must a student get to pass?
asked by Daphne 
physics
A 182 block is launched by compressing a spring of constant k=200N/m a distance of 15cm. The spring is mounted horizontally, and the surface directly under it is frictionless. But beyond the equilibrium position of the spring end, the surface has
asked by haji 
business calculations
albino rats used to study the hormonal regulation of a metabolic pathway are injected with a drug that inhibits body synthesis of protein. usually, 4 out of 20 rats die from the drug before the experiment is over. this time round, 10 animals are treated
asked by Anonymous 
Math
1. if 60% of 3/5 of a number is 36, then the number is......... Pls show working. 2. the average weight of 16 boys in a class is 50.25kg and that of the remaining 8 boys is 45.15kg. Find the average weight of all the boys in the class.
asked by Bright 
gravimetric prob
A pure organic compound weighing 947.4mg was heated in a stream of oxygen. The effluent gas was swept successively through a tube of magnesium perchlorate dessicant weighing 18.6137g and a tube of Ascarite weighing 16.8425g. After several minutes the tubes
asked by vivian 
gravimetric prob
A sample of freshly precipitated silver chloride weighs 704.7mg. Before the solution can be filtered and washed 10.0mg of AgCl is photodecomposed. After the precipitate is filtered and washed another 10.0 mg of AgCl is photodecomposed. Calculate the weight
asked by vivian 
gravimetric
in the gravimetric determination of barium in BaCrO4, what weight of sample must be taken so that the weight of the precipitate in milligrams multiplied by 100 will equal the % Ba in the sample?
asked by vivian 
physics
1. Calculate the work done on the system when 1.00 mol of gas held behind a piston expands irreversibly from volume of 1.00dm cube to a volume 10.00dm cube against an external pressure of 1.00 bar. 2. A perfect gas expand reversibly at a constant
asked by Cali franco 
Chemsitry
What is the pH of the buffer solution that results when 58.50 g of sodium acetate (NaCH3CO2) (Formula Mass = 82.02 g mol1) is added to 1 litre of 0.45 mol L1 acetic acid (CH3CO2H) ? Data: Ka for CH3CO2H = 1.8 x 105
asked by Sue 
Chemistry
How do you calculate the molality of a salt solution using only temperature? Is it even possible to do so? This was part of an ice cream lab and the temperature of the ice was 1.0 degrees celcius and the temperature of the ice water salt mixture was 0.4
asked by Jamie 
MATHEMATIC DEPARTMENT
The second, third and ninth terms of an arithmetic progression forms the first, second and third terms of a geometric progression. Find the common ratio and hence the eleventh term of geometric progression.
asked by Mr. Bett 
Business Statistics
FORMAT INSTRUCTIONS Each question requires the use of MINITAB to solve. Please submit your work as a WORD or similar document. You can prepare this by cutting and pasting the results generated in MINITAB to such a document. Then you can edit that file with
asked by Amer 
Science
How many number of gold atom are present in 0.6 gm of 18 carat gold.The 24 carat gold is taken as 100% pure gold.(atomic mass of gold=197a.m.u)
asked by Mole concept 
math
a tank is 3/5 full ofwater 50 litre more required to fill it up. how many litres can tank hold..??
asked by ritika 
Trig
Can you please help with this trig question: The angle of elevation to the top of a nearby mountain is 46 degrees. After walking 1 km toward the mountain, you determine the angle of elevation to be 68 degrees. How high is the mountain? Thank you for all
asked by Cassandra 
math
Which of the following is/are true? A.xy+z/yxz=1 B.3ab9a^2b^2
asked by enhle 
Communication in the Workplace
Describe each of the three components in the AIM planning process for business messages: audience analysis, idea development, and message structuring
asked by Joel T 
Trig
Please help with this question: A plane travels a distance of 140 km due west of Vancouver International Airport. It then travels 60 km at a bearing of 340 degrees. How far from the Airport is the plane? Thank you for all your help.
asked by Cassandra 
English
1. Emily likes winter because she can see snow in the mountains. 2. Emily likes winter because she can watch snow in the mountains. 3. Emily likes winter because she can look at snow in the mountains. =================== Which verb should we use?
asked by rfvv 
Math
d dx [(e^x + x)^x]. Can someone please show me a step by step of how to do this. Also i'm stuck at (e^x+1)((e^x+x)^x * ln(e^x+x)) ... am i on the right track or?
asked by Aux 
Math
A rocket is launched straight up. At t seconds after being launched, its altitude is given by h = 4t^2 metres. You are on the ground 400 metres from the launch site, watching the rocket. The line of sight from you to the rocket makes an angle theta
asked by Jim 
Calculus
Consider the function f : [pi,pi] > R given by f(x) = e^x*sin(x). (a) Calculate local maxima/minima and points of in ection of f(x).
asked by Galagan 
Math
Jill bought so e carrots and apples for $24.80. A carrot and an apple cost $.90 altogether. She bought more carrots than apples. The cost of the extra number of carrots was $6.80. How many apples did she buy?
asked by Mary 
Math
The total capacity of 6 pitchers and 12 glasses is 21 liters. The capacity of a pitchers if 5 times that of a glass. Find the capacity of each glass in liters.
asked by Mc 
college algebra
a chemist needs to prepare 28 ounces of a 8% hydrochloric acid solution. find the amount of 14% solution and the amount of 7% solution he should mix to get this solution.
asked by anna 
chemistry
How many grams of oxygen gas must react to give 2.70g of ZnO? 2Zn(s)+O2(g)→2ZnO(s)
asked by danielle 
SS
Which of these questions would best help Xiao address a challenge in his community? A. Which political party should community members vote for? B. Why do diverse cultural influences exist in eastern china? C. What must people learn about to get new factory
asked by Help 
Maths
I can`t to find information about, who invented simultaneous equations ?Could somebody help me please.
asked by Kinga M. 
life orientation
evaluate the extend to which peer pressure can impact negatively on intrapersonal conflict.
asked by choene 
PHYSICS
The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ. One track is longer than the other, however. Identical blocks are projected up each track with the same initial speed v0. On the longer
asked by KS 
Chemistry
Four sets of conjugate acid/base pairs and Ka of the acid are given. Which pair would be the best to form a buffer at pH = 9.2? You can use the HendersonHasselbalch equation to answer this question. HCNO/CNO 3.5 x 104 HC2O4/C2O4 5.1 x 105 H2CO3/HCO3
asked by Kristin 
MATH
You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a late fee of $39.00 plus the
asked by Sandy 
The Novel
At the end of chapter II of The Call of the Wild, Jack London writes, "In vague ways he remembered back to the youth of the breed." This statement is an example of A. natural selection. B. the racial unconscious. C. the will to power. D. survival of the
asked by TYondra 
chemistry
How many grams of CuSO4 . 5H2O are needed to prepare 100ml of a 0.10M solution? Remember to change the given volume to liters and take the moles and convert them to grams via the molar mass to get grams of CuSO4 . 5H2O
asked by haley 
Math
Which of the following is a true statement? A. 9 > 4 B.  10  > 2 C.  3 < 1 D. 6<  12 Compare using , or = 2  4 A. < B.> C. = Compare using , or =  25  (8 – 11) A. < B. > C = PLEASE HELP!!!
asked by Priscilla 
english
In the poem " The Arrow and the song" which form best describes the poem this excerp is from?
asked by tyler green 
math
Two investments totaling $23,500 produce an annual income of $795. One investment yields 2% per year, while the other yields 7% per year. How much is invested at each rate?
asked by cole 
Chemistry
How many moles of chlorine are there in 16.0 mL of 0.450 M CaCl2? 0.0072 mol 0.0144 mol 0.0216 mol 0.0375 mol none of the above I had chose 0.0072 and had submitted it in my assignment, but it had said it was wrong. I chose 0.0072 because I did this
asked by Kristin 
Chemistry
What is the pH of a solution which has hydroxide concentration, [OH], equal to 7.6 x 104 M? 0.88 3.12 10.9 13.1 none of the above I had chose 3.12 for this one and this one was also wrong. I did this because I did the equation log(7.6*10^4) and got
asked by Kristin 
Chemistry
Calculate the hydronium ion concentration of blood which has a pH of 7.24. 7.17 x 104 M 5.75 x 108 M 1.15 x 107 M 0.86 M none of the above I had chose 1.15*10^7 by doing the log equation log(1.15...) and I but it goether with log(10*^7.24) and it
asked by Kristin 
Chemistry
In a solution of a weak acid and its conjugate base, which condition has to be true for pH to equal pKa? The concentration of acid has to be greater than the concentration of base. The concentration of acid has to be equal to the concentration of base. An
asked by Kristin 
math
if 4th term of an arithmetic progression is 3 times the 1st term nd 7th term exceeds twice the third term by 1. find the first term and common difference
asked by anandita 
maths
a drunkard walking ina narrow lane takes 5 steps forward and 3 steps backward followed again 5 steps forward and 3 steps backward and so on. if each step is 1m and requires 1 second. determine how long would the drunkard take to fall in to pit 13 m away
asked by shehzad 
maths
a metallic rod was heated to 300¡ãc and left for cooling. after every 2 menute it becomes colder by 15¡ãc. what will be the temperature of the rod after half an hour?
asked by shehzad 
Math
In a jar of coins, the ratio of nickels to dimes is 2:7. If the jar contains 350 nickels, how many dimes are there?
asked by Cheriah 
science 8th (:: 1 question
The ball in the image below is rolling toward the block. The ball will create a disturbance in the stability of the block by knocking it over. Which of the following correctly predicts what will happen to the block? [image of ball rolling toward tall,
asked by XenaGonzalez 
Math
What is the volume of the figure above if a= 6 units and b= 9 units? A. 1, 620 Cubic Units B. 540 Cubic Units C. 324 Cubic Units D.342 Cubic Units
asked by Kate 
Social Studies
PLEASE HELP! what is a likely reason that india supported east pakistan's effort to gain independence from pakistan? 1. East pakistan agreed with india's policy of nonalignment 2. India and Pakistan were in conflict 3. East pakistan was close to india's
asked by girl123 
chemisty
A cylinder with a moving piston expands from an initial volume of 0.350L against an external pressure of 2.70atm . The expansion does 251J of work on the surroundings. What is the final volume of the cylinder?
asked by samantha 
differniate
f(x)= (12x18x^4+3)/(5ã6x^211x^4+2)
asked by kim 
math
Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function. g(x) = e^(3t^2) − 3t dt from 4 to x
asked by jessica 
Math
a rectangle shape doctor's office has an area of 120 feet. what are the dimensions of this office space?
asked by Julian 
Math
1.What is the volume of the figure above if a = 6 units and b = 9 units? A. 1,620 cubic units B. 540 cubic units C. 324 cubic units D. 342 cubic units 2.Susan is building a cage for her rabbit and started by making the supports for the cage as shown below,
asked by Kate 
math
6w6w +6w +6w
asked by ayo 
Chemistry
3 NO2(g) + H2O(l)>2 HNO3(aq) + NO(g) Suppose someone needs 25.0 kg of HNO3. How much NO2 should they start with to end up with the amount they need?
asked by Ajay 
math please help 8th grade
y = 2x + 7 The slopes are equal. The graph has a greater slope. *** The equation has a greater slope.*** none of the above an i right? (:
asked by XenaGonzalez 
geometry
I have a triangle ADB. AD = 2, AB = 3 DB is x. I need to find x. Additional info. AB/BC = BD/BD = AD/BD. Other triangle is DCB. DB is x, DC is 8, CB is y. Booth of triangles are connect by DB. Figure resembles a kite. (Needed to complete 3/y =x/x= 2/x. Is
asked by robin 
Biology
what is an adaptive radiation
asked by Anonymous 
help please? :( math
Which function is a quadratic function? (1 point) y equals one over X y = 5x – 7 y = –x2 + 2x*** y = absolute value of x
asked by XenaGonzalez 
Chemistry
How many grams of potassium nitrate (KNO3) are required to produce 536 g of potassium nitrite (KNO2) according to the equation below? *I've tried this question for so long and I get so many different answers in the end so please help.
asked by Jo 
maths lit,life sciences,business studies,history
What jobs do I qualify for
asked by katlego 
math
how much inches=1feet
asked by shafic 
Math
What jobs do I qualify for
asked by shafic 
Math
Which measurement is NOT equal to 3m, 30dm,300cm,3,000mm,3,000cm
asked by Terese 
Algebra 1
Which answer choice shows 2xy=z correctly solved for y? A: y=2x+z B: y=2xz C:y=2x+z D: y=2xz Here's how I did it: 2xy=z y=2x+z y=2xz Am I right? I have a feeling I'm not, so I would like some confirmation one way or the other.
asked by Rachel 
Math
Determine the coefficient of wx^3y^2z^2 in (2w−x+y−2z)^8
asked by Excel 
Science
The diagram below shows a process in Earth's crust. Which of the following statements best describes the process in the diagram. A Converging plates from Mountains B Converging plates from Volcanoes C Diverging plates form Mountains D Diverging plates form
asked by Anonymous 
Physics
At a given instant three electrons, in vacuum, happen to lie on a straight line. The first and second are separated by 3.00x 106 m, while the second and third are 8.00 106 m apart. What is the magnitude of the net electrostatic force on the middle
asked by Betty 
Physics
a 0.30m radius automobile tire rotates how many rad after starting from rest and accelerating at a constant 2.0 rad/s^2 over a 3.54s interval
asked by Natalie 
Math algebra
x^1/3 ÷ (4x)^½ · 16x^5/4 ÷ 32x I get: x^5/12 ÷ x = x^(5/1212/12) = x^17/12 but answer given is x^7/12 I'm using a^n / a^m = a^nm but according to the answer I'm given it seems that I'm supposed to add the 12/12 to 5/12 not subtract them
asked by Mr.AMG 
Physics
An object with a net charge of 20 µC is placed in a uniform electric field of 627 N/C, directed vertically. What is the mass of the object if it floats in the electric field?
asked by Joey 
reading
what does "if you were Pinocchio right now and we could saw off your nose and have enough firewood to last the winter" mean?
asked by Yellow 
Physics
Three point charges lie in a straight line along the yaxis. A charge of q1 = 9.10 µC is at y = 6.70 m, and a charge of q2 = 7.70 µC is at y = 3.60 m. The net electric force on the third point charge is zero. Where is this charge located?
asked by Sarah 
PHYSICS
a 0.30m radius automobile tire rotates how many rad after starting from rest and accelerating at a constant 2.0 rad/s^2 over a 3.54s interval
asked by Anonymous 
math
Determine the number of divisors of the integer 4312440.
asked by Anonymous 
HELP please
a car wheel turning at 0.5 is brought to rest by the brakes in exactly two revolutions. what is the angular acceleration of the wheel?
asked by Anonymous 
san jac
a sample of nitrogen gas contain 5.0mol in a volume of 3.5L calculate the new volume of the container if the pressure and temperature are kept constant but the number of moles of nitrogen is change to 2.5 mol
asked by Anonymous 
AP Chemistry
This is the question I am having trouble with: A voltaic cell consists of a strip of lead metal in a solution of Pb(NO3)2 in one beaker, and in the other beaker a platinum electrode is immersed in a NaCl solution, with Cl2 gas bubbled around the electrode.
asked by Sarah 
math
lance made 10 dozen cookies. He made 25 percent chocolate chip, 25 percent peanut butter, and the remaining 50 percent oatmeal raisin. How many of each type of cookie did he make?
asked by sOMEONE 
HELP
a car wheel turning at 0.5 is brought to rest by the brakes in exactly two revolutions. what is the angular acceleration of the wheel?
asked by Anonymous 
mental health
Describe how acquired brain injury can affect the family.
asked by kiki 
film
what steps are involved in creating special effects in a movie
asked by eduarda 
Calculus
A fence 4 feet tall runs parallel to a tall building at a distance of 2 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?
asked by Anonymous 
biology
Does Aspirin do something to the reaction of amylase with starch ?
asked by shavell 
math
dion's grandmother is making a quilt using four small squares put together to form one large large square block. how many different can she make using one each of red, green, blue, and yellow smalle squares? show the possible arrangements
asked by Spartans 
Science
The mass of 1 liter of water is approximately 1000g. If you consume 1 liter of water,ow many water molecules did you consume?
asked by Kelley 
history
Gaul is the Roman term for what modern country?
asked by Alex 
math
what the heck does it mean
asked by mike 
Science
When evolution was first proposed, which of the following was used as evidence to support the idea? 1.observations of nature 2.laboratory experiments 3.extensive fossil collections 4.genetic sequences 1.?
asked by Sarah 
please answer my question (math)
dion's grandmother is making a quilt using four small squares put together to form one large large square block. how many different can she make using one each of red, green, blue, and yellow smalle squares? show the possible arrangements
asked by Spartans 
math
local students were surveyed about adding stoplights at the corner of Main Street and Perry Avenue. Determine whether each survey question may be biased. Explain A) are stoplights needed at the intersection of Main and Perry? B) should stoplights be
asked by jacob 
Chemistry
2H2S(g)+3O2(g)2SO2(g)+2H2O SO2(g)+Cl2(g)SO2Cl2(g) I balanced so how do I find the overall equation
asked by kim 
math
Between 6a.m.and 10a.m.the temperature rose by 5°f.between 10a.m.and 2p.m.the temperature rose by 6°f.between 2p.m.and 6p.m.the temperature rose by 0°c.would you be able to tell how much the temperature rose since 6a.m?
asked by Mariah 
History
How were William Lloyd Garrison and the Rev. Elijah Lovejoy alike? Both lived in Boston and were Underground Railroad conductors. Both printed newspapers with antislavery messages in the North. Both used their houses as Underground Railroad stations and
asked by Emma 
4TH GRADE
The __________ Ocean brings much seafood to this region. a. Pacific b. Indian c. Arctic d. Atlantic
asked by BUB 
mental health
Describe how you would support a client with acquire brain injury who demonstrated cognitive deficits as a result of his injury . identify a minimum of 2 possible problems you might encounter and what positive intervention strategies you would use.
asked by kiki 
Geography
Which landform found in this region provides electricity to thousands of people in this area? a. Appalachian Mountains b. Atlantic Coastal Plain c. Niagara Falls d. Atlantic
asked by BUB 
Geography
Which landmark in the Northeast region represents the arrival of the Pilgrims on the Mayflower in 1620? a. White House b. Liberty Bell c. Plymouth Rock d. Statue Of liberty I think the answer is d.
asked by BUB 
algebra
A doormat has an area of 912 square inches. Its perimeter is 124 inches. What are the dimensions of the doormat?
asked by awesomesauce848 
math
Warren measured a recentangular window to find Out how much plastic he would need to cover it.The window measured 5ft 6 inches by2ft9inches.about how many square inches of plastics does Warren need to cover the window?
asked by Mariah 
Math
Raylene made a bracelet with 28 beads. She also made a necklace with twice the number of beads as the bracelet. If 1/2 of the beads on the bracelet are green and 1/4 of the beads on the necklace are green, does the bracelet, the necklace, or neither have
asked by Amari 
math
Dion's grandmother is making a quilt using four small squares put together to form one large large square block. how many different can she make using one each of red, green, blue, and yellow smalle squares? show the possible arrangements
asked by Angelina 
Math
A toy company has increased their size of one of their dolls. The packaging department has calculated that they need to add 3 inches to each of the dimension of the original packaging (Original height=10 in width=2.75 length=5). What is the new amount of
asked by Ashley 
Programing Logic and design
Design a program that asks the user to enter a store's sales for each day of the week. The amounts should be stored in an one dimensional array. use loop to calculate the total sales for the week and display the results. (In Pseudocode)
asked by Alejandro 
Math
Find the width of the rectangle.  = Perimeter=30 in. = = = W=Width =============== L=Length P=w and l=11 p=2l+2w 30=(2x11)+2w 30=22+2w (Think:if 2 x w=8, then w=___divided____ w=8 So the width is 8 inches. I don't know what the
asked by BUB 
Math
Really need help with this: You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a
asked by Sandy 
calculus
A firework is launched at the rate of 10 feet per second from a point on the ground 50 feet from an observer. To 2 decimal places in radians per second, find the rate of change of the angle of elevation when the firework is 40 feet above the ground. Type
asked by emma 
math
At 6 PM, the temperature in Redding, CA, t, is the same as the temperature in Fresno, CA. By 9 PM, the temperature has dropped 2 degrees and in Fresno it has dropped 4 degrees. By 11 PM, the temperature in Redding has dropped another 3 degrees. Represent
asked by Carol 
Algebra
Noelle bought some boxes of water bottles for a picnic. Each box contained 24 bottles of water. If c is he number of boxes, write an expression to show home many bottles of water Noelle bought.
asked by Carol 
Calc 1
Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→∞ (x tan(3/x))
asked by TayB 
Science (Chemistry)
Why do ionic materials dissolve so well in water, but not in Hexane?
asked by Romika 
PE
10. A common emergency is a. shock b. choking c. cardiac arrest*** d. ankle sprain THIS IS DIRECTLY FROM THE LESSON: Choking and rescue breathing emergencies Cardiac arrest Bone, joint, and muscle injuries Outdoor emergencies Bites and stings Poisonings
asked by Amy 
Laboratory Chemistry
The activity of a stock isotope is 10,000 DPM/0.10mL. If 0.25 ml of this stock is placed in 2.50 ml of water, what is the activity in the diluted specimen? My guess is that I just multiply the 10,000 DPM by the 1/10 dilution factor. I then come up with
asked by Sara 
Math
Michael wanted to make a quilt with an area of 42 square feet. What are its possible dimensions if they must be whole numbers? Which length and width makes the most sense for a quilt?
asked by BUB 
geometry
I have right triangles I need to solve. Can you see if I am doing them correctly or screwed up..1) Rt < is in left corner C: Opposite is 60 deg< A, last angle is at top 30 deg
asked by robin 
CHEM
An isotope has a halflife of 56 days. It now has 10,000 DPM/ml. What is the activity in the diluted specimen? Very confused, any help would be appreciated!
asked by Kyle 
Algebra
The student council is asking people to donate money for the new park outside the school. Everyone who makes the suggested donation amount will be given a bracelet. If everyone donates the suggested amount, and b bracelets are given away, what algebraic
asked by Carol 
Physical science
A hydraulic lift is used to lift a heavy machine that is pushing down on a 3.0 m2 piston A1 with a force F1 of 1200 N. What force F2 needs to be exerted on a 0.090 m2 piston A2 to lift the machine? im having problems tring to solve it can you please help
asked by Brandon 
Algebra
Mr. Delgado has some young orange trees. He wants to plant them in 46 rows. If t is the total number if orange trees, write an algebraic expression to represent how many trees he can plant in each row.
asked by Carol 
Math
I divided 4,495 by 50 and got 89. Is that correct?
asked by Keon 
Algebra
Jill, Meg, and Beth are sisters. Jill is 2 years younger than Meg. Beth is half as old as Meg. Use the same variable to write three algebraic expressions based on this situation. Tell what the variable represents and what each expression represents.
asked by Carol 
Math
Thomas started at his house and walked due east50 yards then he walked due west 50 yards and east 20 yards . Which best describes where Thomas was at the end of his walk
asked by Carlos 
English
By the time we got there, the seals (have or had) barked twice
asked by Pat 
To Kristin
I responded to that pKa problem. Here is a link. http://www.jiskha.com/display.cgi?id=1429545787
asked by DrBob222 
History Please With A Cherry On Top
1. Texans responded to the water crisis in all of these ways EXCEPT building new reservoirs. turning more to irrigation. building more dams. enacting water conservation laws.* 2. Which of the following was a pioneer in the treatment of heart disease?
asked by YOLO 
Science
a 9 kg bowling ball rolls off a table and strikes the ground. if the ball isi n the air for 0.5 seconds, how fast is the ball moving when it hits the ground?
asked by Rawr 
Algebra
Using two variables  A carpenter wants to cut a 24foot board into two pieces so that one piece is 5 times as long as the other. How long should each piece be?
asked by Holly 
4th Math
sam cut a pie into equal slices. there are only 3 slices left. the angle measure for the 3 slices is 72 degrees. How many slices did sam cut the pie into? 360
asked by Anonymous 
world history
Can someone give me a famous story about james the less
asked by Eden S. 
Chemistry
Can someone answer this question? The enthalpy of combustion of solid carbon to form carbon dioxide is 393.7 kJ/mol carbon, and the enthalpy of combustion of carbon monoxide to form carbon dioxide is 283.3 kj/mol CO. Use these data to calculate ∆H for
asked by Anonymous 
English
In this sentence Most of my time at the party were/was spent playing two games. Should we pick was since the pronoun is singular
asked by Kelley 
Science
In what ways are electric generators and motors similar? In what ways are they different?
asked by Anonymous 
english
We have to find the right linking verb. 1.) It was she/her who was the director. She 2.) The owner of the recording equipment was me/I. I 3.) The engineer helping with the recording was her/she. She 4.) The person testing how the microphone sounded was
asked by Ben 
math
Write an inequality of the form x > c or x < c to represent the amount of trash cleaned up per mile of coast worldwide compared to the amount of trash cleaned up per mile of coast in England during the 2013 Ocean Conservancy’s International Coastal
asked by carla 
Physical Chemistry
The weight of one atom of uranium is 238amu. Its actual weight is ......g.
asked by Rahul 
Chemistry
You are given potassium carbonate solid and potassium sulfate. Both are white solids. How would you separate potassium carbonate and potassium sulfate?
asked by Anonymous 
Trigonometry
A 19ft ladder leans against a building so that the angle between the ground and the ladder is 80∘. How high does the ladder reach on the building? I did 19sin(80) to get me 18.76847847 for how high the ladder reach on the building... but when i put the
asked by Michael 
English
1. I am on my own today. 2. I am loney today. 3. I am alone today. 4. I am lone today. =================== Are they the same in meaning and grammatical?
asked by rfvv 
6th grade math
if there are 24 kids in a class and 11 more boys than girls how many girls are there?
asked by selby 
Chemistry
Can someone please check if I have written and balanced the reaction properly? 1.In 1774 Joesph Priestley discovered oxygen by decomposing the oxide of mercury. 2HgO = 2 Hg + O2 2. Slaked lime precipitates magnesium ions from hard water. Ca(OH)2 +
asked by Lucina 
Social studies Florida
Cross words: question , when one group chooses not to buy a certain product or service usually a tactic to get a benefit previously decided.
asked by Jules 
Math
Hi! I need help with this question. Thank you! Directions: Write the expression for the nth term of the following geometric sequence. 5, 10, 20, 40, ...
asked by Gloria