# algebra

Most popular questions and responses by algebra
1. ## Algebra

Find all the real square roots of 0.0036 A. 0.06 and -0.06 B. 0.0018 and -0.0018 C. 0.1897 and -0.1897 D. 0.6 and -0.6

2. ## Algebra

he spreadsheet shows the length of 3 movies in each of 3 categories. Choose the formula that could be used in cell B2.   A B C D E 1 Type of Movie Movie 1 (min. long) Movie 2 (min. long) Movie 3 (min. long) Mean Length 2 Animated 72 63 84 73 3 Drama 92

3. ## algebra

Arrange 9 square tiles having side of lengths2cm in different ways. Find the perimeter of The resulting figure in each case.

4. ## math

The wheelers' bill at a restaurant is \$63.00.How much money should Mr.Wheeler leave as a tip 15%?

5. ## Algebra

Can someone check my work please? Fine the sum of the arithmetic series -4 + 1 + 6 + 11 + ..... + 91. I know that a1= -4, d=5, and a20=91. S20= 20/2 (-4 + 91) S20= 10 (87) S20= 870 The sum of the arithmetic series is 870.

6. ## Algebra

Hi, I just started learning about direct, joint, and inverse variation. I was doing a practice question and got -18 when the answer is -8. I'm having trouble solving the problem because my book only shows me how to find y not x. Please help me. If y varies

7. ## algebra

What is the quotient in simplest form? state any restrictions on the variable x^2/x+4 divided by x-2/x^2+x-12

8. ## algebra

Explain how you can determine from the graph of a system of two linear equations in two variables whether it is an inconsistent system of equations.

9. ## spanish

someone translate please Como son la mujer y las dos mudchachas del cuadro? Quien es la mujer, y que relacion hay entre ella y las ninas? Escrbibe una descripcion de las tres personas

10. ## math

There are 22 students on the debate team. The number of boys is two more than three times the number of girls. How many boys are on the team?

11. ## Algebra

ello i need help factoring I haven't had factorin sense Algebra one and now am in Algebra two and our school is screwed up were they shove in a year of Euclidean Geometry and Basic Trig inbetween first two years of Algebra... so i need to factor X^2-12X+35

12. ## Lost

The formula p = nc - e gives the profit p when a number of items n are each sold at a cost c and expenses e are subtracted. If p = 3750, n = 3000 and e = 900, what is the value of c?

13. ## algebra

what is one fourth of thirteen?

14. ## algebra

a city's main well was recently found to be contaminated with trichloreathylene (a cancer-causing chemical) as a result of an abandoned chemical pump that leached chemicals into the water. a proposal submitted to the city council indicated that the cost,

15. ## algebra

Given a right triangle whose side lengths are integral multiples of 7, how many units are in the smallest possible perimeter

16. ## algebra

i have another ? find the slope if it exists of the line containing the pair of points (-5.5,13.6) and (-5.3, 7.8) the slope m=?

17. ## algebra

a=3b for b The solution for a = b=3a did I do this backwards?

18. ## math

kenny can assemble a desk in 40 minutes while his friend paul can assemble the same desk in 20 minutes. kenny worked for 10 minutes and decided to ask paul to work together with him to finish the job earlier, so that they can go to see a football game. how

19. ## math

Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0

20. ## math

The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 34 cm when the weight is 3 kg, what is the distance when the weight is 9 kg? 22. Find the variation constant and an equation of

21. ## algebra

solve for r: I = prt

22. ## algrebra

(2,4) and (6,6) what is the equation of the line y=

23. ## John

min/max point minimum or maximum f(x)=2x^2+8x-2 a=2 x=(-b)/(2a)=(-8)/(2)(2)=-4 x=-4 y=2(-4)^2+8(-4)-2 2(16)-32-2 32-32-2 y=-2 (-4,-2) axis of symmetry is x=-4 range[-2,oo] minimum value -2

24. ## evans

Find the least common denominator of the rational expressions. and

25. ## algebra

whys is 7-(-1) = 8, i don't understand why is it 8 how do you solve this!?

26. ## ALGEBRA

Checking algebra answer, Is it correct? 320km/1hr ↓ 320km /1hr →1m/1.609km =320m/1.609hr÷=199.3mph Answer: Round to nearest 10th =198.9mph

27. ## Kos

simplify. 5 _____ -5 - 3√3

28. ## UOP

Use the value d= rt to find the variable D= 100 feet t =25 second

29. ## science

A 1.98 10-9 C charge has coordinates x = 0, y = −2.00; a 2.73 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.95 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric

30. ## algebra

When you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent?

31. ## Algebra

Add and simplify: 2/x^2-16 + 3/x^2 -2x-8 Now if the numerator of your answer equals 6, what does x equal? My answer of 5x+16/(x-4)(x+4)(x+2) does not match theirs. The correct answer is -2. I don't know how they got there.

32. ## Algebra

could you show me how to solve for x it is killing me y/x^2 = b/(a-x)^2

33. ## algebra

solve y-8> -20 I get 28 am I correct?

34. ## algebra

simplify 5[-8-(34-49)]

35. ## Algebra

can show me how to do this with out just squaring 3x^(1/2) - x - 6 = 0 how do i do this and solve for x with out just squareing and using quadratic formula. I was never taught the proof of the quadratic formula and would like to know how to do with without

36. ## Algebra

X^2=14X+5X I got Lost and on this one -2X(X+7) - (X+7) I need to factor these problems

37. ## algebra

How would i solve this question? In 06, 74.2 million tax returns were filed electronically. This represents a 108% increase over the year 2005. How many income tax returns were filed electronically in 2005? Do I multiply 74.2 x 1.08?

38. ## meg

find the real solutions x= y^2 - 9 x-4y-12= 0 I got x= -3 and y= 7 and x= 40 but how do i know what x to use and whats the ordered pair? I'm confused! help please!

x8+x4+1

40. ## math

two paths each of width2.5 run across the middle of a rectangular field of15 long and 9m wide.find the area of the paths.

41. ## Algebra Geometry 1 & 2

A car traveled 281 miles in 4 hours, 41 minutes. What was average speed of the car in miles per hour?

7x+5x+10x=

43. ## Chelsea

Solve the equation. (Find only the real solutions. Enter your answers as a comma-separated list.) x + 2 = 38 − (x/2)

44. ## Algebra

Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?

45. ## cv

possible values of n for 7n−(9n+1)>5

46. ## Finance

Find the amount of compound interest earned in an account that opens with \$24,000, earns 7.8% interest compounded daily, and is held for 20 years. Assume 360 days in a year. (Round your answer to the nearest cent.)

47. ## Math

1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where

48. ## math

please solve this for me.. i feel as if i am doing this wrong.. (1000/s-120)- (1000/s) = 1/2

49. ## algebra

solve -0.6x < -12 I come up with {x|>20

50. ## algebra

2x + 3y =6 2x + 3y = 4 I get these lines are neither parallel or perpendicular. Am I doing this right?

51. ## algebra

evaluate x + y/8 x=65 and y=7

52. ## algebra

Pleas help with this. Explain the steps so I can understand what I am doing. solve 0.3x + 9

53. ## Algebra

this is same person from before what am I exactly suppose to do when I'm asked to factor 2X(3X+4)-3(3X+4)

1. ## Algebra

Yay!! Thank you so much for checking. Have a lovely day.

posted on April 26, 2019
2. ## Algebra

Nvm I figured it out.

posted on April 9, 2019
3. ## algebra

i love jesus

posted on October 14, 2017
4. ## pre algebra

Compound Interest compounded semiannually A = P(1+(r/2))^2n r is annual rate as a decimal P is principle n is number of years A is present value A = 2000(1.0245)^16 = 2945.92

posted on December 15, 2015
5. ## algebra

thank you ms sue and damon

posted on August 25, 2014
6. ## cv

all the possible values of n that are solutions to 7n−(9n+1)>5.

posted on November 24, 2013
7. ## Computer Science

I don't know.

posted on September 12, 2013
8. ## physics

If I1 is the intensity at a distance 150 m from the source and I2 is the intensity at a distance of d m from the source , I1 *150^2 = I2 *d^2 d^2 =[ I1 / I2 ]*150^2 [I1 / I2] = 1.9 /0.8= 2.375 d^2 = 2.375*150^2 d =231.17 m.

posted on January 10, 2013
9. ## Physics

5 waves pass in 26 seconds, period = 26 sec / 5 waves = 5.2 seconds, f = 0.192 hz

posted on January 10, 2013
10. ## math

Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0

posted on December 31, 2012
11. ## algebra

The loan arranger? I'm just guessing I haven't started the worksheet

posted on November 27, 2012
12. ## Algebra

Thanks! got it.

posted on June 1, 2011
13. ## algrebra

it also says im supposed tp find an equation of the line containing the given pair of points?

posted on December 20, 2009
14. ## algrebra

so what is y= then?

posted on December 20, 2009
15. ## algebra

Then I get 12

posted on September 12, 2009
16. ## algebra

if a=3b for b The solution is b =a/3 Do I understand this correctly now?

posted on September 11, 2009
17. ## algebra

I did that wrong c=2d for d the solution is d= c /2 Correct

posted on September 11, 2009
18. ## algebra

That does not come out right.

posted on September 11, 2009
19. ## algebra

So they would be Parallel correct? Thank you

posted on September 11, 2009
20. ## algebra

I still don't get it does that mean b=3

posted on September 11, 2009
21. ## Math

how do i factor 8X^2+10X-3 I know the answer is (4X-1)(2X+3) I just guessed and checked not sure about thorught process that's suppose to go trough my head here when dealing with a number before X^2 please tell me cuz i can get the answer by guessing but

posted on December 7, 2008
22. ## Ap World History

thanks

posted on December 7, 2008
23. ## Algebra

(X-7)(X-5)

posted on December 7, 2008
24. ## Algebra

thanks

posted on December 7, 2008