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Question 960990: I posted before. Could I get steps on how to solve this. If possible algebraically, I have to know how to solve it without a calculator.
Solve for x (x=AB) in the figure shown
CD=200
http://i.imgur.com/PqcA5E3.png

Click here to see answer by MathLover1(20849)

Question 961113: If two mangoes weigh as much as three oranges and 2 oranges weigh as much as 30 grapes,how many mangoes weigh as much as 90 mangoes?
Click here to see answer by richwmiller(17219)

Question 961964: Maryann has a hexagonal deck that needs to be painted . the apothem's length is 7 feet and one side is 8 feet. what is the square footage of her deck?
Click here to see answer by Alan3354(69443)

Question 962031: At how many minutes per month is the cost of the two following options the same? Answer this question algebraically:
1. prepaid plan charges 20 cents per minute
2.1 year contract,monthly service fee of $30 which includes 150 free minutes per month and any excess charges are at 5 cents per minute.
Click here to see answer by josmiceli(19441)

Question 962305: How to solve 2x+5y=13 and 5x-2y=-11 using substitution method and addition method
Click here to see answer by MathLover1(20849)

Question 962395: A total investment of $10,200 is made into two savings accounts. One account yields 8% simple interest and the other 10% simple interest. He earns a total of $978.00 interest for the year. How much was invested in the 8% account?
Click here to see answer by macston(5194)

Question 962471: 5)Which number can be multiplied to a rational number to explain that the product of a rational number and an irrational number is irrational?
A)2
B)-2 1/8
C)7
D)8

Click here to see answer by hkwu(60)

Question 962473: The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of square root of 2 divided by 2?
What is the measure of the angle?
A)30 degrees
B)45 degrees
C)60 degrees
D)90 degrees
Click here to see answer by Alan3354(69443)

Question 962474: Use the method of completing the square to transform the quadratic equation into the equation form (x + p)2 = q.
1 + x + 2x2 = 0
Click here to see answer by Theo(13342)

Question 962508: Hello friends. I have a problem here that I am hoping someone can help me with . A right cylinder has a volume of 2pi cubic inches . Find the can dimensions that require the least amount of aluminum to be used in the can construction? Thank you in advance !!!
Click here to see answer by hkwu(60)

Question 962515: A person invests 6000 dollars in a bank. The bank pays 6% interest compounded daily. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 11100 dollars?
Click here to see answer by lwsshak3(11628)

Question 962645: √3/1=√9/3?
Click here to see answer by Alan3354(69443)

Question 963243: the sides of two squares are 2.4 m and 1.8 m long .Find the side of a new square equal to the sum of the two squares in area
Click here to see answer by Fombitz(32388)

Question 963293: Which of the following statements does NOT accurately describe an account into which $400 is deposited and earns 6% annual interest compounded quarterly?
A.) 400(1.015)^(4t)
B.) 400 (1+06./4)^(4t)
C.) 400 (1.06/4)^(4t)
D.) None of these (all are accurate)
Click here to see answer by rfer(16322)

Question 963389: Hello good friends . I have a factoring issue here. How does (4x+1)(x^2-1)-2x(2x^2+x-1)/(x^2-1) = -1/(x-1)^2 I am not getting it at all . I have tried every factoring technique I know ..thank you in advance!!
Click here to see answer by rothauserc(4718)

Question 964033: x^0=1?
Click here to see answer by Fombitz(32388)

Question 964177: martin wants to ship a souvenir baseball bat that is 16 inches long in this box. um i don't have the pic of the box but i will describe it to you. its 12 inches at the base. 9 inches on the other base and 8 inches on the height if that makes sense. the question asks: will martin be able to ship the bat in the box? show your work and explain your answer please... i am just so confused. the second question asks: martin finds another box he could use to ship the same bat in. the box is a cube, and has the least whole number edge lengths that will allow the bat to fit. what is the edge length of that box?
Click here to see answer by KMST(5328)

Question 964274: A pennant is shaped like an isoceles triangle. The short side is 14 in. long and is half the length of each longer side. Find the perimeter of the pennant
Click here to see answer by macston(5194)

Question 964294: A TV manufacturer has fixed costs of $1,117.50 and variable costs of $55.25 per TV. The TV's sell
for $99.95 each.
a.) If X is the number of units sold, write the equations of the revenue and cost functions
b.) Find the break even point.

Click here to see answer by addingup(3677)

Question 964313: SOLVE FOR H : V = pir^2h

Click here to see answer by EdenWolf(517)

Question 964312: V = pir^2h

Click here to see answer by EdenWolf(517)

Question 964411: A parachutist's rate during a free fall reaches
153
miles per hour. What is this rate in feet per second? At this rate, how many feet will the parachutist fall during
10
seconds of free fall? In your computations, use the fact that
1
mile is equal to
5280
feet. Do not round your answers.
Click here to see answer by Alan3354(69443)

Question 964234: You deposit $1000 each year into an account earning 2% interest compounded annually. How much will you have in the account in 35 years?

Click here to see answer by rfer(16322)

Question 964566: For the problem:
Find all solutions to
2cos^2(theta) -1=0
I need to find all solutions
I would rearrange to get cos2(theta)=1/2
why doesn't it go from cos2(theta) to 1-sin^2(theta)=1/2 since of the identity for cos(2(theta))?
I don't understand how it only becomes cos2(theta)=1/2 to become pi/6? what about the other identity? and what does 2(theta) mean exactly? why is the answer pi/6?
Please help
Thank you

Click here to see answer by Fombitz(32388)

Question 964595: Let a and b represent the lengths of the legs of a right triangle, and let c represent the length of the hypotenuse. Find the unknown length.
1. A = 3, c=5

Click here to see answer by Fombitz(32388)

Question 964695: All members of a crew work at the same pace. If only 4 members of the crew are working, they complete the job in 18 days. How many hours will it take all 9 members of the crew to complete the same job?

Click here to see answer by josmiceli(19441)

Question 964819: Find the mean of the numbers -32, 0, 8
Click here to see answer by Alan3354(69443)

Question 964876: Find the numerator of the equivalent fraction with denominator 6.
3
Click here to see answer by macston(5194)

Question 964813: Two numbers are related by the equation 3x+ 2y = 42. Find the values of the numbers so that their product is a minmum
Click here to see answer by Fombitz(32388)

Question 964963: the painter leans a ladder against one wall of the house. the ladder is 23 feet long. the base of the ladder is 17ft from the house. how high is the wall. round approxiamations to the nearst tenth
Click here to see answer by Alan3354(69443)

Question 965088: The function D(h)=7e^-0.3h can be used to find the number of milligrams D of a certain drug that is in a patient's bloodstream h nours after the drug has been administered.
a, how many milligrams will be present after 2 hours?
b, when the number of milligrams reaches 1, the drug is to be administered again. After how many hours will the drug need to be administered?
Click here to see answer by josgarithmetic(39617)

Question 965336: Consider kx2 + 10x � 5 = 0. Find k for which the equation has:
a a repeated root b two distinct real roots.
Click here to see answer by Alan3354(69443)

Question 965405: how to determine whether the given lengths can be side lengths of a right angle. numbers are 8, 15, and 17
Click here to see answer by macston(5194)

Question 965844: V=1/3pir^2h Solve for pi

Help me with this please!
Click here to see answer by macston(5194)

Question 965863: x=3y-16
-6y=-2x-32
Help me with this! Please
Click here to see answer by Fombitz(32388)

Question 965954: the sum of two numbers is 2. if one number is subtracted from the other number the result is 8, find the numbers
Click here to see answer by ankor@dixie-net.com(22740)

Question 966065: Tyler has two savings accounts that his grandparents opened for him. The two accounts pay 10% and 12% in annual interest; there is $400 more in the account that pays 12% than there is in the other account. If the total interest for a year is $136, how much money does he have in each account?
Account paying 10% ___
Account paying 12% ___
I cannot get this!!! It's driving me crazy!
Click here to see answer by jim_thompson5910(35256)

Question 966148: Prove that the exterior angle of a regular decagon is one - third the interior angle of a regular Pentagon.

Click here to see answer by Theo(13342)

Question 966079: The Girl Scouts hoped to raise $1,000 selling cookies. Instead, they raised $1,050. What percent of their goal did they achieve?
F. 115%
G. 105%
H. 100%
I. 95%
Click here to see answer by Theo(13342)

Question 966144: The sum of two number is 90. If greater number is twice more than smaller number by 15. Find the number?
Click here to see answer by checkley77(12844)

Question 966446: Hi I need help with the Pythamgrrean thereom. Leg A is 3 and the c is the square root of 10. How do I find b?
Click here to see answer by Alan3354(69443)

Question 966441: How to do Radical Functions and Rational Exponents?
Click here to see answer by Fombitz(32388)

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