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August 30, 2014

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

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Algebra 1
Tell whether the lines for the pair of equations are parallel, perpendicular, or neither. Y=-4/5x+3 4x-5y=-15 (1 point) Parallel Perpendicular*** Neither Write an equation of a line that is perpendicular to the given line and that passes through the given point. y-2=-1/4(x+3...
Monday, January 27, 2014 at 8:25pm

Algebra 1
Write an equation in point-slope form for the line through the given point with the given slope. (-4,6);m=3/4 (1 point) y-6=3/4x+4 y-6=3/4(x-4)*** y-6=3/4(x+4) y+6=3/4(x+4)
Monday, January 27, 2014 at 8:13pm

Algebra 1
Tell whether the sequence is arithmetic. If it is, what is the common difference? -12, -7, -2, 3,… (1 point)
Monday, January 27, 2014 at 7:59pm

math algebra
3 < 4 – 2x
Monday, January 27, 2014 at 6:52pm

Algebra
Simplify (5s^-7)/(10s^-9)?
Monday, January 27, 2014 at 6:04pm

Algebra
Is the following statement always, never, or sometimes true? A number raised to a negative exponent is negative. A. always B. never C. sometimes Sometimes?
Monday, January 27, 2014 at 5:18pm

Algebra
What would the solution to this system of equations be? y = x - 50 y = 0.6x I got (138.8, 83.3), but that doesn't seem right at all.
Monday, January 27, 2014 at 4:57pm

Algebra
Simplify (4xy^2)^3 (xy)^5. A. 64x^8 y^11 B. 64x^15 y^30 C. 12x^2 y^11 D. 12x^8 y^11 A Simplify (2t^-3)^3 (0.4r)^2. A. 3.2r^2 B. (1.28r^2)/(t^-6) C. (1.28r^2)/(t^9) D. (0.8r^2)/(t^-6) C
Monday, January 27, 2014 at 4:49pm

Algebra
Is the following statement always, never, or sometimes true? A number raised to a negative exponent is negative. always never sometimes sometimes?
Monday, January 27, 2014 at 4:38pm

Algebra
Simplify and write in scientific notation. (9 X 10^-3)^2 A. 8.1 X 10^-5 B. 81 X 10^-4 C. 81 X 10^-3 D. 8.1 X 10^-6 ? Evaluate 1/2a^-4 b^2 for a = -2 and b = 4. A. 2 B. 1/2 C. 3 D. 4 B
Monday, January 27, 2014 at 4:03pm

algebra
An oil painting is 16 years older than a watercolor by the same artist. The oil painting is also three times older than the watercolor. How old is each? Identify a variable, set up an equation, and solve.
Monday, January 27, 2014 at 3:58pm

Algebra 1
Eric and Mark were at a ball game and visited the concession stand. They each got a hamburger, and Mark got lemonade and some cotton candy. Eric had a coupon for $2 off the cost. Mark paid the rest, which came to $14.50. Cotton candy costs $5, and a hamburger costs $4. How ...
Monday, January 27, 2014 at 3:30pm

Algebra
Write in standard notation. 6.12 X 10^3. A. 6120 B. 612 C. 61,200 D. 61.2 A Simplify and write in scientific notation. 0.5(8 X 10^5). A. 8 X 5^5 B. 4 X 5^5 C. 8 X 10^5 D. 4 X 10^5 D
Monday, January 27, 2014 at 3:27pm

Algebra, URGENT!! HELP!
Rewrite the following as a perfect square: 144b^18
Monday, January 27, 2014 at 3:20pm

Algebra
Simplify. (mn^-4)/(p^0q^-2) A. (mq^2)/(n^4) B. (mp)/(n^4) C
Monday, January 27, 2014 at 3:16pm

Algebra
Simplify 5^-1(3^-2) A. 45 B. 1/45 C. 15^-3 D. 15^2 B
Monday, January 27, 2014 at 3:06pm

Algebra 1
An online camera retailer currently offers a 40% discount on cameras. Write a function relating a camera's purchases price, y, to the retail price, x. Give the domain of this function. I'm really stuck on this problem. Thanks so much for your help.
Monday, January 27, 2014 at 2:56pm

Algebra (Word Problem)
Here's the word problem: You have a coupon for $50 off your camera purchase of $100 or more at Camera World. Write a function relating a camera's purchase price after coupon, y, to the retail price, x. Give the domain of this function. Here is what I have so far: y = ...
Monday, January 27, 2014 at 2:29pm

algebra
1. November 1: You start the month with $1,234 in your account.
Monday, January 27, 2014 at 1:50pm

algebra
the total was 29.00 after adding a 4,00 tip to the bill for a family of five, each of whom ordered a hot dog. what was the price of a hot dog?
Monday, January 27, 2014 at 12:48pm

Algebra
a rock is thrown upward with a velocity of 20 meters per second from the top of a 40 meter high cliff, and it misses the cliff on the way back down. when will the rock be 7 meters from the water, below? round your answer to two decimal places
Sunday, January 26, 2014 at 11:29pm

Algebra
How to simplify? 4xy^2 0^4(-y)^-3
Sunday, January 26, 2014 at 11:15pm

Algebra
Solve the system by substitution. x + 3y = -4 2x + 2y = -8
Sunday, January 26, 2014 at 10:29pm

Algebra
Systems of equation 1. +2y=5 8 -6y=3x-15 2).p-2q=4 2q=p+2 Solve the equations? I am stuck on how to do these last to problems thanks for the help
Sunday, January 26, 2014 at 8:45pm

algebra
suppose that S varies directly as the 2/5 power of T, and that S=8 when T=32. Find S when T=243.
Sunday, January 26, 2014 at 7:49pm

Algebra
Find an equation of the line that contains the following pair of points. (-2,-3) and (-6,-9)
Sunday, January 26, 2014 at 7:35pm

Algebra
Could someone help me with finding an equation of the line containing the given pair of points (3,2) and (9,7)
Sunday, January 26, 2014 at 7:17pm

Algebra
Simplify? (4 X 10^3)^4
Sunday, January 26, 2014 at 5:42pm

algebra
suppose a ball is thrown upward from a height of 4.5 feet with an initial velocity of 21 feet per second. write an equation relating the time t and height h of the ball
Sunday, January 26, 2014 at 5:18pm

Algebra
Write a formula to express the given relation. The area A of a rhombus is one-half the product of the diagonals p and q.
Sunday, January 26, 2014 at 1:55pm

Geometry/Algebra/Calculus
Why isn't the surface area of a sphere with radius r the following: 2*pi * (pi*r) That comes from the following flow of logic: Doesn't it makes sense to think of the surface area of the sphere with radius r as the the circumference of the semi-circle with radius r, pi*...
Sunday, January 26, 2014 at 1:46am

College Algebra
A compound inequality uses one of the words and or or. Explain how you will determine whether to use the intersection or union when graphing the solution set
Saturday, January 25, 2014 at 11:00pm

Algebra
A couple wishes to rent a car for one day while on vacation. Ford Auto Rental wants $35.00 per day and 14¢ per mile, while Chevrolet-For-A-Day wants $34.00 per day and 16¢ per mile. After how many miles would the price to rent the Chevrolet exceed the price to rent a...
Saturday, January 25, 2014 at 10:20pm

Algebra 2
Solve by completing the square. 1.x^2+x+c=0 2. x^2+bx+c=0
Saturday, January 25, 2014 at 9:00pm

Algebra 1
John went mountain climbing. He reached 350 feet above sea level. His sister Olivia went scuba diving. She was 150 feet below sea level.What is the difference between their elevations. Would it be 500 feet?
Saturday, January 25, 2014 at 1:34pm

1033 Int Algebra
Simplify by using the order of operations 4(5-6)^2 +9^2
Saturday, January 25, 2014 at 1:28pm

Algebra 1
The football team lost 6 yards and then gained 8 yards. What was the net loss or gain?
Saturday, January 25, 2014 at 1:18pm

algebra
At a pet store, Rhonda paid $11.50 for 3 dog bowls and 4 bones. Kelly $13 for 2 dog blows and 8 bones. How much will Andrew pay for 4 dog bowls and 2 bones?
Saturday, January 25, 2014 at 8:04am

Algebra
I know that Reiny has answered this question on how to simplify this, but what steps do I follow? (r^2 s)^5
Friday, January 24, 2014 at 6:02pm

algebra
The perimeter of a pool is 64 feet and has a width of x and a length of x-4. What is both the width and length of the pool?
Friday, January 24, 2014 at 5:50pm

algebra
How to simplify? I know the answer, but please show the steps. (r^2 s)^5
Friday, January 24, 2014 at 4:55pm

algebra 2
simplify the product using the distributive property. (5h+2)(3h-3)
Friday, January 24, 2014 at 2:46pm

Algebra
1. (12g^4)^-1 (work check) 12g^-4 = 1/(12g^4) 2. (2y^4)^-3 (need help)
Friday, January 24, 2014 at 11:35am

algebra
write an equation that describes each line in slope intercept form. slope=4, y-intercept=-3 slope=2/5, (10,3) is on the line
Thursday, January 23, 2014 at 11:16pm

algebra
write an equation in point slope form for the line with the given slope that contains the given point.. slope=5;(1,7) is on the line (8,-2) and (4,-4) are on the line
Thursday, January 23, 2014 at 11:14pm

Algebra 2
How would I reduce the equation 7n=n-5n(n+4)
Thursday, January 23, 2014 at 10:46pm

PRE ALGEBRA
solution to electrical poles that carry electrical wire seem to get smaller the further away you are. Find the apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between poles.
Thursday, January 23, 2014 at 10:34pm

Algebra 2
What do I do after I have the equation at 8+64n = 8n
Thursday, January 23, 2014 at 10:29pm

algebra
2a+2b/z=5c solve for a
Thursday, January 23, 2014 at 10:10pm

algebra
what is the answer to |19- pi|?
Thursday, January 23, 2014 at 10:03pm

algebra
2(x-2)<=-2(1-x) I cant figure it out
Thursday, January 23, 2014 at 9:45pm

algebra
-4(x+12)=> -30
Thursday, January 23, 2014 at 9:29pm

algebra
write each equation in slope-intercept form. then graph the line described by the equation. 3y+2x=12
Thursday, January 23, 2014 at 8:46pm

algebra
write each equation in slope-intercept form. then graph the line described by the equation. 2y=4x+6
Thursday, January 23, 2014 at 8:45pm

algebra
use intercepts to graph the line described by each equation x-6=3y
Thursday, January 23, 2014 at 8:17pm

algebra
use intercepts to graph the line described by each equation 2x+4y=8
Thursday, January 23, 2014 at 8:16pm

algebra 1
You can stuff 321 envelopes in 1 hour and 15 minutes. At this rate, how many envelopes can you stuff in 2 hours? How would you write an equation?
Thursday, January 23, 2014 at 5:58pm

Algebra 1
Which statement about real numbers is true? Across the heading says: real numbers. The first big circle says: rational numbers The second biggest circle inside rational numbers says: integers The third circle within the rational numbers says: whole numbers. Then there is a ...
Thursday, January 23, 2014 at 4:33pm

Algebra (Check My Work)
(7a)^-2 1/(7a^2) 1/49a^2
Thursday, January 23, 2014 at 4:24pm

Algebra
To order movie tickets online, John has to pay $10 per ticket plus a $2 handling fee. If John has to buy three tickets how much money will he spend? A. $12 B. $30 C. $32 D. 36 I think it is C. Thank You.
Thursday, January 23, 2014 at 4:22pm

Algebra 1
Chris spends $3 per square foot on carpet for a square room. If he spends about $430 on carpet, what is the approximate length, in feet, of a side of the room? A. 12 ft B. 36 ft C. 72 ft D. 215 ft I think it is A. Thank You.
Thursday, January 23, 2014 at 4:17pm

Algebra 1
Which property does the equation 4 + x +7 = 4 + 7 + x illustrate? A. Identity property of addition B. distributive property C. Commutative propert of addition D. Associative property of addition I think it's D. Thank You.
Thursday, January 23, 2014 at 4:14pm

Algebra
How to solve d(d^-2)^-9? Please show and explain step-by-step.
Thursday, January 23, 2014 at 3:50pm

Algebra 1
Laura rented a car that costs $20 for the day plus $.12 for each mile driven. She returned the car later that day. Laura gave the sales person $50 and received change. Which inequality represents the possible number of miles m that she could have driven? A. 50>0.12m+20 B. ...
Thursday, January 23, 2014 at 3:47pm

Algebra 1
which cannot be represented by a linear function? A. The area of a square, given its side length B. the price of fruit, given the weight of the fruit C. The number of steps on a ladder, given the height D. The number of inches,given the number of yards I think it is C. Thank you.
Thursday, January 23, 2014 at 2:52pm

Algebra 1 (Reiny)
How am I supposed to solve 2x^0y^-3 when x = 7 and y = -4? Also, what steps must I take to solve x^10/d^-3?
Thursday, January 23, 2014 at 12:16pm

Algebra (Graphing Calculator)
When trying to perform a linear regression, my fx-9750II calculator doesn't give me the option of graphing once I put the info into lists. The options it gives me are "SRT-A", "SRT-D", "TOP", and "BTM", but no "GRAPH". I ...
Thursday, January 23, 2014 at 8:35am

Algebra 2
How do I get 0 and 7 out of 2x^2 = x^2 +7x
Wednesday, January 22, 2014 at 9:05pm

Algebra 1
The Tigers won twice as many football games as they lost.They played 96 games. How many games did they win?
Wednesday, January 22, 2014 at 7:57pm

Algebra 1
Stacy is going to paint the side of a house with the dimensions 30 feet by 20 feet. If a gallon of paint will cover 250 square feet, how much paint will she need?
Wednesday, January 22, 2014 at 7:29pm

Algebra
Jena wants to paint the walls in her square shaped bedroom. each wall has an area of 130 sq ft. if one quart of paint covers 150 sq ft, how many quarts of paint will she need to buy to paint all four walls? Would I leave it 4.6 or round up to five quarts?
Wednesday, January 22, 2014 at 7:15pm

algebra 1
A gardner is calculating the perimeter of a rectangular garden, which has a length of 25 feet. The area of the garden is 400 square feet. What is the perimeter of the garden? Write the equation: could it be this? p=400/25+400/25+25+25
Wednesday, January 22, 2014 at 7:11pm

algebra
Let the set of ordered pairs (x, y)= {(1, 2), (2, 4), (1, 3), (3, 4)} is a relation between x and y. Then the relation: A. is a function B. is not a function as y = 4 is related to two values of x i.e. x = 2 and x = 3 C. is not a function as x = 1 is related to two values of y...
Wednesday, January 22, 2014 at 6:50pm

Algebra 1
A jacket costs $45. It is on sale for 20% off. What is the price of the new jacket? Write the equation.
Wednesday, January 22, 2014 at 6:48pm

Algebra 1
Two students are absent. This is 1/8 of the entire class. How many students are in the entire class? Write the equation: How would you write an equation?
Wednesday, January 22, 2014 at 6:17pm

Algebra 1
Two students are absent. This is 1/8 of the entire class. How many students are in the entire class? Write the equation: How would you write an equation?
Wednesday, January 22, 2014 at 6:17pm

Patterns,Algebra ans Functions
This line represents the line on a graph tha shows how long it took Khalil to walk to school.The horizontal axis shows the time and the vertical axis shows blocks covered.Explain what you think happened on Khalil's way to school?
Wednesday, January 22, 2014 at 12:16pm

Algebra 1
Beatriz is creating graphs for her city's Park Department. Beatriz is trying to persuade the parks department to put in more gazebos for shade. For a local park, Beatriz wants to demonstrate the attendance as it changes every week. She also wants to show the temperature ...
Wednesday, January 22, 2014 at 6:23am

algebra 2
complete the square 2x^2-4x-1=0
Wednesday, January 22, 2014 at 2:16am

algebra
Two phone companies offer discount rates to students. The first company wants $9.95 per month plus $.10 per minute for long distance calls. The second company wants $12.95 per month plus $.08 per minute for long distance calls.
Tuesday, January 21, 2014 at 8:30pm

Algebra 2/ Trig
Igor is flying a kite. he has let out 300 feet of kite string. the string makes an angle of 64 degrees with the level ground. To the nearest foot, how high is his kite?
Tuesday, January 21, 2014 at 5:53pm

algebra
British sterling silver is a copper-silver alloy that is 7.5% copper by weight. How many grams of pure copper and how many grams of British sterling silver should be used to prepare 320 grams of a copper-silver alloy that is 20% copper by weight? (Round your answers to one ...
Tuesday, January 21, 2014 at 3:44pm

Algebra Check
What is the simplified form of 3a^4b^-2c^3? a. (81a^4c^3)/(b^2) b. (81a^4)/(b^2c^3) c. (3a^4)/(b^2c^3) d. (3a^4c^3)/(b^2) D What is -a^-2 if a = -5? a. -25 b. 25 c. -1/25 d. 1/25 D What is (-m)^-3n if m = 2 and n = -24? a. 3 b. -3 c. 4 d. -4 A
Tuesday, January 21, 2014 at 1:47pm

algebra 1
A charity fair raised $6,000 by selling 500 lottery tickets. There were two types of lottery tickets: A tickets cost $10 each, and B tickets cost $60 each. How many tickets of each type were sold?
Tuesday, January 21, 2014 at 1:30pm

Algebra
Mike’s father is twice as old as he is. Seven years ago, the father was 7 years less than thrice as old as Mike was. Find Mike’s present age.
Tuesday, January 21, 2014 at 10:03am

Algebra
Ruffy is 34 as old as Orlie. Four years ago, Ruffy was 1 year more than 12 as old as Orlie. How old is each?
Tuesday, January 21, 2014 at 10:01am

algebra 1
7X-2y=-39 X+5y=5
Tuesday, January 21, 2014 at 9:54am

Algebra
Gustav’s father is seven times as old as he is. A year ago, he was nine times as old as Gustav. Find Gustav’s present age.
Tuesday, January 21, 2014 at 9:02am

Algebra
Gustav’s father is seven times as old as he is. A year ago, he was nine times as old as Gustav. Find Gustav’s present age.
Tuesday, January 21, 2014 at 9:01am

Algebra
Gustav’s father is seven times as old as he is. A year ago, he was nine times as old as Gustav. Find Gustav’s present age.
Tuesday, January 21, 2014 at 9:00am

Algebra
Half of Henry’s age added to 13 of Daisy’s age is 11 years. Six years from now, the sum of their ages will be 40 years. How old is each six years from now?
Tuesday, January 21, 2014 at 8:21am

Algebra
Ayie is 7 years older than Luis. Next year, she will be 1 year more than twice as old as he will be. How old is she now?
Tuesday, January 21, 2014 at 8:18am

algebra 2
2. In 1971, astronaut Allen Shepard hit a golf ball on the moon, the path of a golf ball hit at an angle of 45 degrees and with a speed of 100ft per second can be modeled by g y= - ----------xsquared( 2 ) + x 10,000 where x is the ball's horizontal position (in feet), y ...
Tuesday, January 21, 2014 at 8:10am

Algebra
Mimie is twelve years older than her brother Macky. Four years from now, Macky will be two-thirds as old as Mimie will be four years from now. How old are they now?
Tuesday, January 21, 2014 at 7:38am

Algebra
Mike’s father is twice as old as he is. Seven years ago, the father was 7 years less than thrice as old as Mike was. Find Mike’s present age.
Tuesday, January 21, 2014 at 7:37am

Introductory to algebra
simplify both sides of the following equations as much as possible and the solve: 4x+2-3x=4+1
Monday, January 20, 2014 at 10:03pm

algebra 2
"A woodland jumping mouse hops along a parabolic path given by y=-0.2x(squared)+1.3x where x is the mouse's horizontal position(in feet) and y is the corresponding height(in feet). Can the mouse jump over a fence that is 3 feet high? Explain in quadratic function."
Monday, January 20, 2014 at 9:24pm

Algebra/Math
Evaluate: l-x^2l (x - y) + (x^3 + y) If x + 8 = 3 and y = 3_ \l 8 Is the answer -202? I did it in the calculator but forgot how to work it out
Monday, January 20, 2014 at 9:06pm

Algebra I
volume of a basketball is 448.9 cubic inches. with the formula V=4/3(pie)radius(cubed) for the volume of the ball, find the radius of the basketball
Monday, January 20, 2014 at 5:49pm

Algebra
A road map has a scale of 5/8 for every 125 miles. How many inches would be needed to represent 1000 miles on the map?
Monday, January 20, 2014 at 3:16pm

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