Questions Asked on
June 9, 2011

physics
A satellite that is spinning clockwise has four lowmass solar panels sticking out as shown; the mass of the satellite is 750 kg. A tiny meteor of mass 2 kg traveling at high speed rips through one of the solar panels and continues in the same direction
asked by Daiyo 
Chemistry
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? A) increasing temperature B) increasing pressure C) decreasing surface area D) decreasing temperature
asked by Brya 
science
a runner training for a race times her 400 meter laps around a track. her times are lap 1 60 seconds, lap 2 57 seconds, lap 3 55 seconds and lap 4 53 seconds. what is her avaerage velocity in meters per second (m/s)?
asked by Quetta 
science
three 10 ohm resistors are connected in parallel what is the equivalent resistance of the parallel combination?
asked by harold 
science(physics)
the sum of three forces f1=100n, f2=80n, f3=60n acting on a particle is zero. The angle between f1 and f2 is: Please solve
asked by marley 
maths (trigonometry)
how can we calculwte the value of Cot 70 degree+4 cos 70 degree
asked by marley 
Chemistry
Name the three products formed when tin(II) nitrate is heated. Thank you.
asked by Isa 
Math  Data Management
I'm kinda stuck on my math homework, does anyone know how to do it? The results of a blood test at a medical lab are normally distributed with a mean of 60 and a standard deviation of 15. How low must a score be to lie in the lowest 5% of the results?
asked by Andy 
statistics
In a particular class, there are 3 freshmen, 5 sophomores, 11 juniors, and 2 seniors. If the instructor randomly chooses a student to answer a question in class, what is the probability that the student chosen will be a freshman?
asked by Anonymous 
English
Identify the complete adjective clause and the word it modifies. I elected to take astronomy, which is not a required course.
asked by Daniel 
physics
A plane drops a package of emergency rations to a stranded party of explorers the plane is traveling horizontally at 40m/s at a height of 100m from the ground find where the package strikes the ground ralative to the spot where it was dropped
asked by job 
physics
A boy drags a 100 N sled up a 20 degree slope at constant velocity. If the coefficient of friction between the sled and hill is 0.2 what force must he exert at an angle of 35 degrees with respect to the hill?
asked by amy 
physics
A square coil of side 0.5 m is placed with its plane perpendicular to the direction of the magnetic field. What is the flux change in the coil if the magnetic field changes from 0.1 Tesla to 0.5 Tesla? Choose one answer. a. 0.1 Weber b. 0.2 Weber c. 0.8
asked by ashley  HELP PLEASEE!!! 
Instructional materials:Their preparation and Use
if you could help please do 3. A document camera is more versatile than an opaque projector because you can use it to A. record sound. B. project threedimensional objects. C. display book pages on a screen. D. view colored items. 4. Which one of the
asked by beth 
english
Identify the complete adjective clause and the word it modifies. This course deals with facts that everyone should know.
asked by Daniel 
calculus
Sketch the region bounded by the curves y = x^2, y = x^4. 1) Find the area of the region enclosed by the two curves; 2) Find the volume of the solid obtained by rotating the above region about the xaxis; 3) Find the volume of the solid obtained by
asked by Megan 
algebra
if a+2b+c=4 then find the maximum value of ab+bc+ca
asked by rohan 
Math
The Lifetimes of a certain brand of photographic light are normally distributed with the mean of 210 h and a standard deviation of 50 h. What percent of lights will need to be replaced within 233 h? Out of 2000 lights, how many will have a lifetime between
asked by Jerry 
Physics
A 0.200m uniform bar has a mass of 0.750 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 25.0 N/m. Find the tangential speed with which end A strikes the
asked by Karen 
physics
A rectangular loop with 100 turns and area of 0.12 m2 rotates at 100 rad/s. The axis of rotation of the square is perpendicular to the direction of the magnetic field of 0.025 Tesla. What is the maximum emf induced in the loop? Choose one answer. a. 30 V
asked by unknown 
social studies
How did the Emancipation Proclamation change the nature of the Civil War, if it did at when he issued it ?
asked by Joanne 
chemistry
Zinc metal reacts with hydrochloric acid to produce hydrogen gas according to the equation below. What volume of hydrogen at STP is released when 15.1 grams of zinc react at STP? Zn(s) + 2HCl(aq) ¨ ZnCl2(aq) + H2(g)
asked by katydid 
physics
Marks: 2 The magnetic field of the loop increases from 0.0 Tesla to 0.2 Tesla in 0.4 seconds. The cross sectional area of the loop is 0.6 m2. What is the average current induced in the loop if the coil has a resistance of 1.5 Ω? Choose one answer. a. 0.1
asked by unknown 
Math  Problem4
Solve the inequality. Express your solution using interval notation and please show all of your work. x^4  7x^2  14 > 0
asked by Greg  PV 
ap history
what was john walthall alleged offense?how might one account for the ferocity of the assault on carter's family walthall? I believe he sleeps with white women but i don't know what he stole. I don't understand the second question. please help me coz i need
asked by heather 
english
Identify the complete adjective clause and the omitted introductory word. Is he the man you saw at the coffee shop?
asked by Daniel 
english
Identify the complete adjective clause and the omitted introductory word. The car I drive has 50,000 miles on the odometer.
asked by Daniel 
english
Identify the complete adjective clause and the word it modifies. Many Californians who own homes live on hillsides.
asked by Daniel 
arithmetic
Prove that the product of three consecutive even numbers is divisible by 48
asked by Abdulhalim 
chemistry
A sample of oxygen occupies 38.9L at STP. What will the pressure need to be in Torr. if the volume is to be changed to 32.2L without a change in T.
asked by kathleen 
maths (trigonometry)
how can we calculate the value of Sec50 degree+tan 50 degree
asked by marley 
Algebra II
Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)Which expression is equivalent to tan(theta)(sec(theta))/(sin(theta))? A.)cot(theta) B.)cot(theta) C.)tan(theta)cot(theta) D.)tan(theta)sec^2(theta) 2.)Find the exact value of:cos 375
asked by HotMath 
Algebra II
Multiple Choice Which expression is NOT equivalent to 1? (theta) means 0 with dash in it. A.)sin^2 (theta)+cot^2 (theta) sin^2 (theta) B.)(sin^(theta))/(1cos(theta))cos(theta) C,)sec^2 (theta)+ tan^2 (theta) D.)(cot^2(theta) sin^2 (theta))/(cos^2(theta))
asked by HotMath 
algebra
solve using the subsitution method 4x+4y=36 4x+4y=12 If the system has no solution or an infinite number of solutions, please help me understand it.
asked by mema 
Physics
A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of 25.0 N/m. Find the tangential speed with which end A strikes the horizontal
asked by Samantha Kaur 
Physics
A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of 25.0 N/m. Find the tangential speed with which end A strikes the horizontal
asked by Samantha Kaur 
Chemistry
How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF MgF2 + H2
asked by Ashley 
science
if a 10 microfarad capacitor and a 20 microfarad capacitor are connected in series what if the equivalent capacitance of the series combination?
asked by harold 
math
In a shop there are 20 customers, 18 of whom will make a purchase. If three customers are selected, one at a time, at random, what is the probability that all will make a purchase?
asked by CC 
physics
Marks: 2 The magnetic field of a circular loop of wire changes from 0.3 Tesla to 0.4 Tesla in 0.2 seconds. What is the induced emf produced in a coil if the area of the circular loop is 1m2? Choose one answer. a. 0.1 V b. 0.2 V c. 0.5 V d. 0.6 V
asked by unknown 
math
When a single card is drawn from a shuffled deck of cards, find the odds against getting a 9.
asked by CC 
Math
Use the IVT to show that there is a root of the equation 4x^36x^2+3x2=0 between 1 and 2? (please give a full answer with steps)
asked by Sivakumar 
math
. A box contains five blue, eight green, and three yellow marbles. If a marble is selected at random, what is the probability that it is not blue?
asked by CC 
TRIGONOMETRY *(MATHS)
Q.1 Prove the following identities: (i) tan^3x/1+tan^2x + cot^3x/1+cot^2 = 12sin^x cos^x/sinx cosx (ii) (1+cotx+tanx)(sinxcosx)/sec^3xcosec^3x = sin^2xcos^2x.
asked by MATH............... 
chemistry
The distance from Earth to the Moon is approximately 240,000 .What is this distance in meters? Express your answer using two significant figures.
asked by stan 
Physics
A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of . Find the tangential speed with which end A strikes the horizontal
asked by Samantha Kaur 
Math  Domain and Asymptotes
Given the following rational function: f(x) = (x^2 + 6x  8) / (x – 5) (a) state the domain. (b) find the vertical and horizontal asymptotes, if any. (c) find the oblique asymptotes, if any.
asked by Greg  PV 
Cupler
how much low fat milk (1%) fat and how much whole milk (4%) fat should be mixed to make 5 gal of reduced fat mild 2%
asked by Linsey 
Math
Aaron had an unpaid balance of $1,177.79 on his credit card statement at the beginning of April. He made a payment of $430.00 during the month, and made purchases of $366.02. If the interest rate on Aaron's credit card was 4.5% per month on the unpaid
asked by CC 
math
If two people are selected at random, what is the probability that they were both born in winter (December, January, or February)?
asked by CC 
physics 221
The United States and South Korean soccer teams are playing in the first round of the World Cup. An American kicks the ball, giving it an initial velocity of 3.8 m/s. The ball rolls a distance of 5.0 m and is then intercepted by a South Korean player. If
asked by coolstir 
Math
Solve the logarithmic equation. Express your solutions in exact form only. Please show all of your work. log3(x+2) + log3(x+8) – 2 = log3(x+3)
asked by Allison  Carson 
AnnexationUnited States
Make a poster to advertise the cause of one of ... The Confederationists The AntiConfederationists The Annexationists Try to think of slogan to put on your poster. I chose to be an Annexationist. The slogan I chose Come Live in the U.S where life's
asked by Emma 
Psychology
In this memory process, the individual records information to prepare it to be entered into memory. Storage Encoding Retrieval Priming i think the answer is encoding but then im confused?
asked by Jesse 
Physics
A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of . Find the tangential speed with which end A strikes the horizontal
asked by Samantha Kaur 
microeconomic
Consider a monopolist facing a demand curve given by P = 20 – q, where P is the market price and q is the quantity sold. The monopolist's marginal costs are MC = 2 per unit and a fixed cost of $20. What is the monopolist's profit it is charges a uniform
asked by sisca 
math
A $400 loan is to be paid off in 66 monthly payments of $11.62. The borrower decides to pay off the loan after 18 payments. Use the rule of 78s to find the amount of interest saved. (Points : 1) $194.13
asked by CC 
chemistry
If 1500 blood cells were lined up, they would make a row 1.0 inch long. What is the average diameter of the blood cells in micrometer(If l inch = 2.54cm)?.
asked by Elizabeth 
algebra
• After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example
asked by Gladys 
physics
Marks: 2 The emf produced in a generator is What is the frequency of rotation of the circular coil? Choose one answer. a. 100 Hz b. 60 Hz c. 50 Hz d. 25 Hz
asked by unknown 
Providence
Business relationships often present ethical dilemmas: not easily resolved easily resolved by following the relevant laws best resolved by creating a loselose situation irrelevant and therefore require no action
asked by Harold 
arithmetic
If a1,a2,a3 represents first, second, third terms in A.P. if the first term is 2 and (a1 + a2 ) a3 is minimum then the common difference is ___?
asked by Harpreet Kaur 
Algebra
Find the average rate of change of f(x) 3x^24x from x=3 to x=6 . Simplify your answer as much as possible.
asked by Jessica 
math
Phil had an unpaid balance of $1,854.50 on his credit card statement at the beginning of December. He made a payment of $45.00 during the month. If the interest rate on Phil's credit card was 2.5% per month on the unpaid balance, find the finance charge
asked by CC 
physics
50kg iceskater turns a bend at 7m/sec. if the radius of the curve is 5 meters, what is the centripetal force provided by the friction between the blade of the skate and the ice?
asked by Anonymous 
Math
3 questions if you can help me. 1. Calculate the number of subsets and the number of proper subsets for the set. {xx is a day of the week} 2. Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the
asked by Roger 
science(physics)
two forces are in the ratio 1:2 named p and q.if their resultant is at an angle tan inverse root 3 /2 to vector p then the angle between p and q is ? Plz solve.
asked by marley 
ALgebra 1
im doing a webquest on mt everest in math class. im almost done. i just need help with this 8. There have been many deaths in an attempt to climb Mount Everest. Make a timeline starting from the first attempted summit through 2004. Indicate the number of
asked by surfsupmel 
Algebra!
Which ordered pair is a solution to the system y(line under)x1? A. (0,2) B. (1,2) C. (5,0) D. (0,5) I'm thinking it's B.. but i need some help with this.
asked by Allyson 
science
if 100g of water at 20 degrees C absorbs 5kj of heat, what amount will the temerature of the water increase?
asked by harold 
algebra
On August 26, 1989, a train in south africa carried a record number of 660 cars. what was the length of the train?
asked by Anonymous 
georgraphy
Which of Canada's Atlantic Provinces has jurisdiction over mainly uninhabited Labrador? A. Prince Edward Island B. Newfoundland C. New Brunswick D. Nova Scotia
asked by esha 
Chemistry
A certain headache relief tablet is composed of monoprotic acetylsalicylic acid(C9H8O4(s)) and an inert filler. A 4.00 g tablet was crushed and dissolved to make 40.0 mL of solution. The solution was then titrated with 0.900 mol/L NaOH(aq). The volume of
asked by Maya 
math
If two people are selected at random, what is the probability that they were both born in May?
asked by CC 
biology
I did a lab with catalase breaking down hydrogen peroxide. A question asks, what gas is being formed (oxygen), suggest a method I could use to determine this. I don't know any method?
asked by Tone 
Math
3 questions if you can help me. 1. Calculate the number of subsets and the number of proper subsets for the set. {xx is a day of the week} 2. Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the
asked by Roger 
chemistry
I would really like help for this question ASAP! pleasee! I thank you ahead of time. The question refers to an experiment using equal volumes of O2 gas and three other gases "X", "Y", "Z", at the same temperature and pressure. If the respective masses are:
asked by md. 
algebra
Joe has a collection of nickles and dimes that is worth $7.65.If the number of dimes was doubled and the number of nickles was increased by 35, the value of the coins would be $14.30. How many nickles and dimes does he have?
asked by mema 
tax accounting
bruce wilson won 2 million in the state lottery. the lottery pays out the prize money in 20 annual installments of 100,000 each. After receiving three 100,000 installments, bruce sold the remaining 1.7 million of payments for 1 million. He wants to report
asked by will smithe 
geometry
if the measure of angle 1 is 6n+1 and of angle 4 is 4n+19 what is the measure of angle 2 ?
asked by cole 
chemistry
How many grams of oxygen gas can be produced when 4.50 L of NO2 react according to the equation below at 427 ¨¬C and 1.15 atm? 4NO2(g) + 6H2O(g) ¡æ 7 O2(g) + 4NH3(g)
asked by katydid 
science
when a bar magnet is moved toward a stationary conducting loop which direction does the induced current in the loop flow?
asked by harold 
Algebra
Determine whether the given numbers are solutions of the inequality. 4, 11, 19, 1 y8>2y3 Are any of these numbers a solution of the inequality? Which are not? My answer is none of them are a solution because the answer to the inequality is 5. Or am I
asked by samae 
Security
Should these roles be included in a procedures manual? Why or why not? How can a company or organization balance the use of nonsecurity personnel during a disaster or emergency with safety and liability issues? Explain your answer.
asked by Anonymous 
Children's Literacy
Discuss the conflict between childhood and adulthood in Charlotte's Web. Think about how the adults are portrayed, how the children are portrayed, and how the adults interact with the children. Use examples from the novel to help support your answer. It
asked by Thara 
health
How might the increase in medical technology have a negative effect on communication among providers? Provide at least two examples. Are there any positive effects of increased technology on communication among providers? Why or why not? How does the
asked by tina 
Geometry
A box is filled with 6 cans of tennis balls. If the emply space was filled with sand, how much sand is needed to fill the box? Each can has a radius of 2 in. Height of box is 12in.
asked by jean 
Math
I'm kinda stuck on my math homework, does anyone know how to do it? The results of a blood test at a medical lab are normally distributed with a mean of 60 and a standard deviation of 15. How low must a score be to lie in the lowest 5% of the results?
asked by Andy 
math
Two dice are rolled. Find the probability of getting a sum greater than 8. 0 13/36 2/9 5/18
asked by CC 
Math  xintercepts and yintercepts
Hi, can someone help me with intercepts. find the intercepts of f(x) = x^2  6x  2 can someone show how to work this problem. thanks.
asked by CheezyReezy 
fractions
fraction word problem. please advise on how to work the problem Phillip and Jane had a pie each. Phippip ate 1/4 of his and Jane ate more of the pie than Phillip. Which fraction of his pie could Jane have eaten. Possible answers: 2/5 1/6 2/8 or 1/8
asked by Suzanne 
Class 12th : Calculus
If y = sqrt(x1)+sqrt(x+1),prove that sqrt(x^21)dy/dx=1y/2
asked by Akash 
World History
This man was responsible for the painting of the Sistine Chapel, as he spent 4 years lying on his back atop a scaffold , just a few feet from the ceiling.?
asked by dave 
Algebra
I need help with these two problems. I need to have all of the steps shown for full credit and I get lost along the way. 6x  2y = 10 4x + 3y = 12 solve the system by elimination. solve inequality 2(2x6)4x>or equal to 3x10 + 9 It's at this point in our
asked by aria 
Math Problem2
List all possible rational zeros for the polynomial below. Find all real zeros of the polynomial below and factor completely. Please show all of your work. f(x) = 5x^4 – x^3  33x^2 – 43x – 16
asked by Greg  PV 
chemistry
I would really like help for this question ASAP! pleasee! I thank you ahead of time. The question refers to an experiment using equal volumes of O2 gas and three other gases "X", "Y", "Z", at the same temperature and pressure. If the respective masses are:
asked by md. 
Social Studies
What are the social classes of Poland?
asked by Karan 
algebra
Solve using the elinination method 2x+2y=20 2x2y=4
asked by mema 
math
Katie had an unpaid balance of $1,734.50 on her credit card statement at the beginning of January. She made a payment of $165.00 during the month. If the interest rate on Katie's credit card was 7% per month on the unpaid balance, find the finance charge
asked by CC 
science(physics)
when two forces of magnitude p and q are perpendicular to each other their resultant is of magnitude 'r'. When they are at an angle of 180 degree to each other their resultant is 'r root 2'find the ratio of p and q.
asked by marley 
algebra
I need to simplify (6x^2y^3)(9x^2y^3)/3x^2y^2. I don't know whether I'm supposed to multiply or divide or both?
asked by Lori 
algebra
Determine whether each pair of equations represents parallel lines 3x=5y2 and 10y=46x
asked by Sonya 
Math 3
Find the inverse of the function f(x) = 5 – e^(x1). Determine the domain, range, and asymptotes of the function and its inverse function. Please show all of your work.
asked by Allison  Carson 
chemistry
if u have a sample of silicon with a mass of 306.0, how many cm3 of mercury do you have?
asked by fransico 
social studies
Was the Battle of Antietam a Union victory, defeat, or was it a stalemate ? Give reasons for your answer.
asked by Joanne 
english
What is the verb in the following sentence Her outgoing voice mail message sounds professional?
asked by sue 
Finance
suppose a computer that costs $3000 new is only worth after 3 years .What is the average annual rate of depreciation?
asked by nancy 
algebra
Multiply 5x+4 by 4x^2+x
asked by mema 
Maths arithmetic
Calculate the common difference of 8; 16; 24
asked by Khoza Maria 
math
Two dice are rolled. Find the probability of getting a 5 on either die or the sum of both dice is 5.
asked by CC 
Algebra
Write the solution in interval notation x=2. ) What would the compound inequality look like? Thanks for the help!
asked by Ann 
science
when a reaction in solution produces energy, what happens to the temperature of the solution?
asked by harold 
science
what entropy changes occur whin a substance melts?
asked by harold 
Quick Math Question
I want to shampoo my mattress with a cleanser. On the directions it reads "Do not use on products coded "X" Om my mattress under "Finished Size" it reads 35" X 74 1/2" What does that read in Math terms? I want to make sure I don't ruin my Mattress. :')
asked by Willy Wonka 
ap history
Ms. Sue  thank you for your answer. i understand the second question now but i really don't know much why. is it because at that time people hate blacks like the kkk during the restoration period?i tink john stole something else. it says in the book that
asked by heather 
world history 10
What transportation vessel and animal are on the family crest of the McDonalds of Scotland ? (Mr. G's ancestors)
asked by dave 
MATHS
STORY PROBLEM A number divided by 15 gives 451 as quotient and 13 as remainder.What is the number?
asked by Anonymous 
Math  Properties of Logarithm
Can someone show how to this question. Loga(x+3) + Loga(x3) = 3 I don't know if I'm typing this correctly the a is the base. So, I'm thinking, Loga((x+3)(x3)) = 3 (x+3)(x3) = 3^a x^2  9 = 3^a, x^2 = 3^a + 9 x = sqrt(3^a + 9) but now I'm stuck, I don't
asked by Greg 
health
How might the increase in medical technology have a negative effect on communication among providers? Provide at least two examples. Are there any positive effects of increased technology on communication among providers? Why or why not? How does the
asked by tina 
art
You've just come up with an idea for an oil painting and you're anxious to get started. Which one of the following surfaces would allow you to begin the soonest?
asked by liliy 
Algebra II
Simplify(Multiple Choice) (1csc^2 0)/(cot^2 0) A.)1 B.)1 C.)tan^2 0 D.)1/sin^4 0
asked by HotMath 
algebra
If a stone is thossed from the top of a 230 meter building, the height of the ston as a function of time is given by h(t)=9.8t^210t+230 t is seconds and h in meters. How many seconds will the stone hit the ground?Round to the nearest hundredreths place
asked by mema 
CHEM 111
What is the Ka value of acetic acid from the pH of the buffered solution? pH=4.39 of 25ml of HC2H3O2 with .410g NaC2H3O2 added. Ka = [H3O][C2H3O2] / [HC2H3O2]
asked by Anonymous 
Social Studies
The most useful indicator of the degree of democracy reached by a particular society is whether it has a?
asked by Shondreka 
english
what is a direct performative aspect? (as in poetry or drama)
asked by rita 
geometry
Refer to the diagram. AD = 24 cm; AC = 1/3 AD; DE = 18 cm; ∆ ABC ~ ∆ AED. AB=
asked by Anonymous 
math
Dr. Collins borrowed some money to buy new furniture for her office. She paid $720.00 simple interest on a 7.5year loan at 16%. Find the principal.
asked by CC 
6th grade fraction comparisons
Which numbr is greater than 3/4. The possible answers are 75/100 , 11/12, 2/3 or 3/8. I thought that I would try the method of making the denominator the same by the lcd. 75/100 is equal to 3/4 mult denom/number by 3 and got 9/12 so don't know how to
asked by Linda 
geography
European Union would be what type of Region?
asked by Ryan 
hum/176
Is this a good thesis sentence? Music is more than just entertainment; it has physical and psychological effects on humans and animals and is the totality of ideas, perspectives, attitudes, images and other phenomena that are deemed preferred per an
asked by bmorenappy 
Math 4
For the given functions f(x) = ln(x) , g(x) = x  7, h(x)=5x+6 find f o g o h and state the exact domain of f o g o h. P lease show all of your work.
asked by Allison  Carson 
Math
Solve the following equation in the complex number system. Please show all of your work. x^4 – 13x^2 – 90 = 0
asked by Greg  PV 
maths (trigonometry)
how can we calculate the value of Cos 10+sin 10/cos 10 sin 10
asked by marley 
Algebra II
Mulitple Choice Find cos0 if sin0=3/5 and 90 degrees
asked by HotMath 
geometry
the exterior angle in a pentagon have an extended ratio of 2 : 4 : 5 : 9 : 1 How Big is Each angle?
asked by Anonymous 
algebra
Use the discriminant to determine the following equations have that are two different rational solutions:two different irrational solutions or exactly one rational solution or two different imaginary solution. x^2=5x+6
asked by mema 
algebra
write with postive exponents. Assume that even roots are nonnegative quantities and the demoninators are non zero (2x/y^2)^4
asked by mema 
URGENT HELP QUICK math rate of change
A line with a slope of 2 passes through the point (1, 7). What is the closest point on the line above (1, 7) which has whole number coordinates?
asked by chelsea 
algebra
Given the quadratic function f(x)=9x^236x+36 find a value of x such that f(x)=9
asked by mema 
algebra
Use polynominal long division to divide 4x^3+24x^224x+4 by x^25x+1
asked by mema 
aleg/trig
two forces of 14and 30 act on a body forming an obtuse angle w/ eachother. if the resultant is 60, whats the angle betweeen the 2 forces?
asked by Angel 
algebra
how to prove that (a^2b^2)^3+(b^2c^2)^3+(c^2a^2)^3=3 (a^2b^2)(b^2c^2)(c^2a^2) please help
asked by pavatharani 
Psychology
Repeatedly reciting a sequence of words: A) activates different brain areas than when the word sequence is spoken the first time. B)is a characteristic symptom of the disorder known as Korsakoff’s syndrome. C)minimizes the effects of proactive
asked by Jesse 
Algebra
Determine whether the given numbers are solutions of the inequality. y8>2y3 4, 11, 19, 1 (are any of these numbers a solution to the inequality?)
asked by Ann 
math
A company borrowed $1500. It must make monthly payments of $40.50 for 42 months to pay off the loan. Use the constant ratio formula to find the annual percentage rate.
asked by CC 
math
coat with an original price of $300.00 is on sale for $285.00. Find the percent of the markdown.
asked by CC 
geometry
Given: angleA=angleR,anglePKA=angleRPK Prove: angleRKangleAP
asked by Miranda 
physics
i need a mathematical relationship between density and height
asked by ben 
med term
In theses 2 scenarios im suppose to find 15 med words and define them, now I have found more then 15 am I correct that there is more then 15? Don't want to know what they are just want to know that there is more then 15 I. AMBULATORY CARE FACE SHEET Admit
asked by Denise 
Ninth grade
How would I solve this? I'm totally stumped and I need some help. Solve by elimination 3x2y=4 and under it is 7x4y=6 Any clue? Thanks!
asked by Allyson 
Math Problem3
Solve the following inequality and write your answer using interval notation. Please show all of your work. (1 / (x+8) ) ≤ ((85x)/43)
asked by Greg  PV 
beer's law plot
name and give the formula for two cations that you think could be anailzed quantitatively by visible spectroscopy
asked by Anonymous 
Solve the equation log (little 3) X + log (little6
log (little 3) X + log (little6) X = 2 the answer is 3.9 can anyone please explain how do you get this answer? Thank you
asked by Tracy 
Math  operation on function
Given f(x)=sqrt(x) and g(x)= 6x 5, find f+g, fg, f*g, and f/g
asked by CheezyReezy 
Calculus ll
find the second order derivative, rxy(x,y) for r(x,y)=xy/8x+5y
asked by Chris 
algebra
Subtract (4x+17xy9y)(5x8xy)
asked by mema 
Trig
give the value of tan(arctan x+1/x1+arctanx1/x)
asked by Mike 
psychology
I need a couple good examples are used in descriptive research in psyschology?
asked by Sharon 
Alegebra
an equivalent expression of xz is ?
asked by Anonymous 
social studies
Was the Emancipation Proclamation more important to the American domestic audience with European powers ?
asked by Joanne 
english
Can you begin a sentence like so.. Well dressed John was smart, funny, and everyone loved him.
asked by Denise 
Composition
Can youplease help me choose the correct word to use? I don't know (who/whom)I should call to babysit?
asked by Tori 
Math  Trig
Let Vector V(t) = 2pi t î + 2pi t ĵ. Find the vector V(1/3). Where is the vector after the next 1/3s? What is the angular speed?
asked by Susan 
Math
show that AB // DC,A=(0,2),B=(4,1),C=(1,5),D=(3,2)?
asked by Anonymous 
math
can someone help me find a way to remember the order of operations!? thanks.
asked by anonymous. 
algebra
k=(2c9d)/8
asked by rena 
com 155
Are these sentences using the adjective and adverb correctly? Do they make sense? 1) The girl is a "bad" softball player.(Adjective) 2) The girl played softball "badly." (Adverb) 1) I am "cautious" when I run at night. (Adjective) 2) I "cautiously" run at
asked by blake 
Adult Education
This question tells me add or subtract as directed and reduce answers to lowest terms. 2 3/10 + 9 4/5 Im not understanding the steps at all??? ive tryed 4 GED books and even the Teacher isent able to properly explain is a way that i can understand.
asked by Francisco Cantu 
Math  2
Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. (e^(2x) – 10e^x) / 13 = 3
asked by Allison  Carson 
science
what changes in an atom produce an atomic spectrum?
asked by harold 
science
A piece of Aluminum wire Android a 50pound Aluminum both have the same density. Why?
asked by fransico 
algebra
solving the equation (x+4)(x4)=9 Eric stated that the solution would be x+4=9>x=5 or (x4)=9=>x=13 However one of these solution fails to work when subsituted back to the original equation. Why?olve and explain the reasoning. Can someone please help me?
asked by mema 
English  Native speakers
Hello! What is the difference between switch off the TV and turn off the TV?
asked by Mark 
hindi
five sentences oncarrot,potatoin general
asked by sita 
algebra
express in terms of i 3/104
asked by mema 
Organic Chemistry
What will be the result when ketone is added with ethylene glycol and TsOH?
asked by Stephanie 
math
65% of 13
asked by Anonymous 
mathematics
what are the 20 terms that are used in mathematics
asked by renee 
Science
how would you make 1 molar solution using 4 molar solution and pure water?
asked by Kayla 
Physic
what is the focal length of a plane mirrior which is 4m tall?
asked by Daniel 
algebra/trig
x^2+2x15=0 solve by completing the square
asked by Angel 
math
65% of 13
asked by Anonymous