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December 20, 2014

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

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Algebra
What is 80y to the three fourths in radical form??
Saturday, December 20, 2014 at 4:19pm

Intermedia Algebra
to find the distance across a canyon, a surveyor inserts poles a two places o the same side of the canyon as indicated below. using the surveyors measurements given below find the distance across the canyon. 625 and 300
Friday, December 19, 2014 at 1:42pm

Intermedia Algebra
using the distance formula calculate the distance to one decimal place between the points (-3,5) and (4,1)
Friday, December 19, 2014 at 1:38pm

Intermediate Algebra
the distance d in feet that an object falls in t seconds is modeled by the formula d=16t^2. if you drive from height of 120 feet, how long will it take to hit the water ?
Friday, December 19, 2014 at 1:35pm

Algebra
The heigh h, in meters, that Andreina is above the water t seconds after beginning her dive is given by the formula h = -5t^2 + 6t + 10. After how many seconds will Andreina hit the water, rounded to the nearest tenth of a second?
Friday, December 19, 2014 at 7:37am

Algebra
When Neil was 2 miles upstream from camp on a canoe trip, he passed a log floating downstream with the current. He paddled upstream for 1 more hour and then returned to camp just as the log arrived. What was the rate of the current?
Friday, December 19, 2014 at 7:31am

algebra
Dilbert needs to mix a 10% alcohol solution with a 30% alcohol solution to create 100 millileters of a 16% solution. How many millileters of each solution must Dilbert use?
Friday, December 19, 2014 at 2:32am

Algebra
The slope of a line is 3/4 and its y-intercept is (0,6). What is its x-intercept?
Friday, December 19, 2014 at 12:32am

algebra
the sum of the least and greatest integer is 35 more than the middle integer
Thursday, December 18, 2014 at 11:42pm

Algebra
Points A(3,5) and B(7,10) are the endpoints of a diameter of a circle graphed in a coordinate plane. How many square units are in the area of the circle? Express your answer in terms of pi.
Thursday, December 18, 2014 at 11:25pm

Algebra 1
When solving a system of equations, how do you determine which method to use?
Thursday, December 18, 2014 at 10:53pm

Algebra
If ab = 37 and xy = 1/37, what is the value of the product x • b • y • a? Use the commutative and associative properties of multiplication to evaluate.
Thursday, December 18, 2014 at 10:47pm

Algebra math
The height H and beat of a ball after T seconds is given by H equals 80t team take away 16x2. how long did it take for the bout to hit the ground
Thursday, December 18, 2014 at 9:45pm

PRE-ALGEBRA MRS.SUE PLEASE!!!!!!!!!
1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2...
Thursday, December 18, 2014 at 8:25pm

PRE-ALGEBRA
1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2...
Thursday, December 18, 2014 at 8:24pm

Algebra 1
Which method would be the simplest way to solve the system? 7x +5y = 19 -7x-2y = -16 graphing substitution elimination or distributive
Thursday, December 18, 2014 at 8:20pm

algebra
You Found The perfect Chritmas present for your cousin . Macy's in kentucky has the item priced for $35 . you have a coupon for 20% off and must pay 6% sales Tax . how much will the present cost you?
Thursday, December 18, 2014 at 7:31pm

Algebra 1
In which quadrant does the solution ofthen system fall? y=x-1 y= -3x-5
Thursday, December 18, 2014 at 7:08pm

Algebra 1
The cost of 4 scarves and 6 hats is $52.00. The cost of 2 hats is $1.00 more than the cost of 1 scarf. What is the cost of 1 scarf?
Thursday, December 18, 2014 at 6:54pm

Algebra 1
How many solutions does this system have? *3x + 6y = 10 -3x + 6y = -4
Thursday, December 18, 2014 at 6:50pm

algebra 1
(7p+3)(p+1)find each product
Thursday, December 18, 2014 at 6:03pm

algebra 1
solve 5x-12y=-3 and 10x-4y=-25 by elimination
Thursday, December 18, 2014 at 5:13pm

algebra 1
solve -16x-2y=-18 and 8x+y=9 by elimination
Thursday, December 18, 2014 at 4:46pm

algebra
When 40 is added to the number of miles Karen ran last week, the result is the same as adding 10 to 4 times the number of miles she ran last week. How many miles did Karen run last week?
Thursday, December 18, 2014 at 2:01pm

Algebra
Find all real roots of the following equation. x^2 - (5/3)x = -2/3 Thx
Thursday, December 18, 2014 at 10:02am

algebra
Traveling downstream a certain boat went 21 mph. Traveling upstream it went only 5 mph. Find the speed of the boat in still water and the speed of the current.
Thursday, December 18, 2014 at 9:59am

Algebra
The half-life of a specific radioactive compound is 20 years. The equation used to model this half-life is y = 5 1/2(t/20) where t represents time. Currently, there are 5 pounds of this compound 15 feet below the earth's surface. When will there only be 4 pounds of this ...
Thursday, December 18, 2014 at 9:57am

math algebra
Mauryn wrote the following Sandwiches at king sandwich cost same amount and include bread, meat, cheese, lettuce, and tomato. All other veggies are extra. Sam bought a chicken sandwich with 3 extra veggies for $5.25. Erin bought roast beef sandwich with 5 extra veggies for $6....
Thursday, December 18, 2014 at 9:05am

math algebra
The length of the diagonal across the front of a rectangular box is 25 inches, and the length of the diagonal across the side of the box is 20 inches. The length of a 3 dimensional diagonal of the box is 28 inches. What is length of the diagonal across the top of box? A. 15.5 ...
Thursday, December 18, 2014 at 8:58am

math algebra
What is slope of line 8y = -16? a. 0 b. 2 c. 16 d. undefined dont have a clue how to do this
Thursday, December 18, 2014 at 8:48am

math algebra
What is y intercept of equation represented: X Y 150 1047 125 872 100 697 75 522 a. -3 b. 0 c. 3 d. 172 I come up with totally different answers than these. Do you use the y2-y1/×2-×1 ?
Thursday, December 18, 2014 at 8:46am

math solution on algebra
If one side of equilateral triangle is 2 cm then find the area of this triangle
Thursday, December 18, 2014 at 2:42am

algebra
A field goal is 3 points and the extra point after a touchdown is 1 point. a player made 21 field goals and extra point kicks for 49 points. Find the number of field goals and extra points that he made. FG= x extra point =y =49 x+y=49 did i set up the equation correctly
Thursday, December 18, 2014 at 1:12am

Math- algebra
If a ball is thrown directly upward with a velocity of 26 ft/s, its height (in feet) after t seconds is given by y = 26t − 16t^2. What is the maximum height attained by the ball? -Please just post answer if possible, my calculations are off. Just want to make sure I am ...
Wednesday, December 17, 2014 at 11:44pm

Algebra 1
Describe how the graphs of y = absolute x and y = absolute x +2 are related.
Wednesday, December 17, 2014 at 10:41pm

Algebra 2
solve 200(1+8%/12)^12 Please show work!!!!
Wednesday, December 17, 2014 at 7:49pm

Algebra 1
Write the equation of a line that is perpendicular to the given line and that passes through the given point. y-3 = 8/3 (x+2); (-2,3)
Wednesday, December 17, 2014 at 7:47pm

algebra
A stem-and-leaf plot has a stem of 4 and leaf of 6, but has no a key, Give two possible values that stem represents. Explain the your thinking.
Wednesday, December 17, 2014 at 7:22pm

algebra
The Kwon family has a rainwater catchment system they use to water their garden. After 3 days without rain, the depth of water in the tank is 63 inches. After 5 days, the depth is 57 inches. What will the depth of water in the tank be after 17 days?
Wednesday, December 17, 2014 at 6:53pm

Algebra 2
Find the indicated term of each expansion. fifth term of (x^2+squ. root 3x)^8 Please show work I need to learn how to do it.
Wednesday, December 17, 2014 at 6:17pm

Algebra 2
Find the coefficient of the indicated term in the expansion of the given power of a binomial. Identify the missing exponents. (x^7y^2);(x+y)^? Please show work I need to learn how to do it.
Wednesday, December 17, 2014 at 6:14pm

Algebra
Steve is driving to a ski resort. At first, he drove at a rate of 65 mph. Then a snow storm started and he had to slow down to 40 mph. In total. it took him 6 hours to drive 310 miles. Which system of equations represents this situation? A. 6x + y= 1 x + y= 310 B. x + y= 105 ...
Wednesday, December 17, 2014 at 5:16pm

Algebra
How many solutions does the following system have? { 16x - 8y=20 { 4x - 2y= 5 A. O B. 1 C. 2 D. Infinitely many
Wednesday, December 17, 2014 at 4:59pm

Algebra
To solve the following system of equations by elimination, which step would best to perform first? 1/2a - 1/4b = 1 1/3a + b= 3 A. Add the two equations. B. Subtract the two equations. C. Multiply the first equation by 4. D. Divide the first equation by 3.
Wednesday, December 17, 2014 at 4:43pm

Algebra
A sales clerk at a local deli made the chart below for popular lunch combinations. What is the individual price for a salad? Lunch Pricing Combinations 1 Sandwich + Salad= $8.70 2 Sandwiches + Salad= $13.45 A. $3.25 B. $3.95 C. $4.25 D. $4.75
Wednesday, December 17, 2014 at 3:34pm

Algebra 1
Write the equation of a line that is perpendicular to the given line and that passes through the given point. y-3 = 8/3(x+2); (-2,3)
Wednesday, December 17, 2014 at 2:57pm

Algebra
Lisa, Nicole, and Amber are to mow a rectangular lawn that measures 100 feet by 120 feet. Lisa is going to mow one0third of the lawn by mowing a strip of niform width around the outer edge of the lawn. What are the dimensions of the lawn to still be mowed?
Wednesday, December 17, 2014 at 1:41pm

Algebra
Janice tosses a softball directly upwards with an initial velocity of 100 feet per second. Use the formula h = vt - 16t^2 to answer each question. a. When will the ball reach a height of 84 feet? b. When will the ball hit the ground?
Wednesday, December 17, 2014 at 1:37pm

Algebra 1
Tell whether them lines, for each pair of equations are parallel, perpendicular, or neither. y= -1/4x +10 -2x+8y=6
Wednesday, December 17, 2014 at 1:18pm

Algebra 1
Tell whether the lines for each pair of equations mare parallel, perpendicular, or neither. y= -2x+4 -5x+10y=5
Wednesday, December 17, 2014 at 1:04pm

Algebra
A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5 inches on a side and then folding the sides. The piece of sheet metal is twice as long as it is wide. If the volume of the box is to be 1760 in^3, what are the dimensions of the ...
Wednesday, December 17, 2014 at 11:42am

Algebra 1
Write an equation for the line that is parallel to the given line that passes through the given point. y=3x+7; (2,10)
Wednesday, December 17, 2014 at 11:31am

algebra
Please help, I am really having trouble understanding this problem. what are the foci of the hyperbola given by the equation 16y^2-9x^2=144
Wednesday, December 17, 2014 at 9:26am

Algebra
Adam kicks the football in his backyard. The path of the football when kicked can be represented by the quadratic function y = - 16{x^2} + 85x where x is the horizontal distance (in feet) and y is the height (in feet). How far does Adam kick the football? Express your answer ...
Wednesday, December 17, 2014 at 9:15am

Algebra II
A restaurant sells about 330 sandwiches each day at a price of $6 each. For each $.25 decrease in price, 15 more sandwiches are sold per day. How much should the restaurant charge to maximize daily revenue? Explain each step of your solution. What is the maximum daily revenue?
Wednesday, December 17, 2014 at 9:06am

algebra
suppose you went to a carnival. the price in was $6, and you paid $0.50 to get on each ride. if you went to the carnival and rodeo 11 rides, how much did you spend?
Wednesday, December 17, 2014 at 8:42am

Algebra
log(4)(3x + 4)^5 = 15 x = 20? And is this the only solution?
Tuesday, December 16, 2014 at 11:18pm

Algebra 1
Write y= -2/3x +7 in standard form using integers.
Tuesday, December 16, 2014 at 10:59pm

algebra 1
h=-16t2+20t+24 gives the height h of the rock after t seconds. how many seconds does it take for the rock to hit the water 24+20=16t 44=16t 44/16=16/16 2.75 seconds
Tuesday, December 16, 2014 at 10:05pm

algebra
A Gentoo penguin can swim at a rate of 17 miles per hour. How many miles can a penguin swim in 4 hours? Use the expression rt, where r represents rate and t represents time. How do I put this into an expression?
Tuesday, December 16, 2014 at 9:48pm

Algebra 1
Write an equation in point slope form for the line through the given point with the given slope. (4,-7); m= -0.54
Tuesday, December 16, 2014 at 9:12pm

Algebra 1
Which ordered pai is a solution of y= -6x -7? A.(0.5,-4) B.(2,-19) C.(-2,-5) D. (3,11)
Tuesday, December 16, 2014 at 8:25pm

algebra
1/5 > d + 4/5
Tuesday, December 16, 2014 at 8:11pm

algebra
What is the equation in standard form of a parabola that models the values in the table? x -1 0 2 f(x) 12 5 15
Tuesday, December 16, 2014 at 7:16pm

pre-algebra
how do you rewrite rational numbers -0.56, -2.3,2.11, I do know where to start I'm a mom trying to help my son with his homework
Tuesday, December 16, 2014 at 7:04pm

Algebra 2
solve for x: ax +by =c.
Tuesday, December 16, 2014 at 6:46pm

Algebra
1. What is the value of the expression (-7)(3) - (5) (-3) 2. Simplify (x^2 +6) - (3x^2 - 2x -5)
Tuesday, December 16, 2014 at 6:45pm

Algebra 2
write a quadratic function in vertex form. write the equation for the axis of symmetry of the parabola.
Tuesday, December 16, 2014 at 6:45pm

Algebra 2
for each function what is f(-2)? a. f(x)= 3x +5 b. f(x) = -5/2x -2
Tuesday, December 16, 2014 at 6:41pm

Algebra 2
what is the slope of each line? a. 2x-5y =3 b. 3x +2y =4
Tuesday, December 16, 2014 at 6:40pm

Algebra
Which property is illustrated by 45 + 19 = 19 + 45? A. Commutative property of addition B. Identity property of Addition C. Associative property of addition D. zero property of addition
Tuesday, December 16, 2014 at 6:19pm

Algebra 2
suppose y varies directly with x and y=1 when x= -3. what is the constant of variation? what is x when y=4?
Tuesday, December 16, 2014 at 6:17pm

Algebra 2
what are the x and y intercepts of 2x +4y =8?
Tuesday, December 16, 2014 at 6:06pm

Algebra 2
find the slope of each line. a. y= 2x-3 b. 3y=7x =1
Tuesday, December 16, 2014 at 6:03pm

Algebra 2
write the compound inequality 3.1 less then or equal to m less than or equal 4.7 as an absolute value inequality.
Tuesday, December 16, 2014 at 5:58pm

Algebra 1
What is the value of the expression (-7) (3)- (5)(-3)?
Tuesday, December 16, 2014 at 5:55pm

Algebra 2
solve ax -3x + 5 = a+b for x. state any restrictions on the variables.
Tuesday, December 16, 2014 at 5:55pm

Algebra 2
write an equation to solve the problem. find three consecutive even numbers whose sum is 144
Tuesday, December 16, 2014 at 5:53pm

Algebra 1
jack is taking his family to the fair. he plans to take $5 for each admission ticket plus $35 for food. Write an equation that models the amount of money jack takes to the fair.
Tuesday, December 16, 2014 at 5:53pm

Algebra 1
simplify (x^2 +6) - (3x^2 - 2x -5)
Tuesday, December 16, 2014 at 5:51pm

pre-algebra
how do i solve -x=-7
Tuesday, December 16, 2014 at 5:15pm

algebra
Suppose you invest $400 at an annual interest rate of 7.6% compounded continuously. How much will you have in the account after 1.5 years. Round to the nearest dollar.
Tuesday, December 16, 2014 at 5:11pm

algebra
an access ramp has a height of five feet and a horizontal distance of 60 feet. find the length of l of the ramp tothe nearest tenth of a foot
Tuesday, December 16, 2014 at 5:04pm

algebra
a support wire 12 yardslong is attached to the top of a utility pole 10yards tall and is then stretched out. to the earest tenth of a yard,find how far from the base of the pole wire will beattached to the ground-breaking
Tuesday, December 16, 2014 at 5:00pm

algebra
the lengths of two sides of a right triangle are given. find the length of the third side. a=9,c=41
Tuesday, December 16, 2014 at 4:56pm

algebra
Jennifer's basketball team played 18 games this season, and they won twice as many games as they lost. How many games did they lose?
Tuesday, December 16, 2014 at 3:46pm

algebra
Jared has a bag that contains 8 blue marbles, 6 red marbles, and 10 green marbles. He selects a marble, replaces it in the bag, and then selects another marble. What is the probability that both marbles are green
Tuesday, December 16, 2014 at 3:18pm

Algebra 2
Can someone please help me do the follow problem... ...The cost (in dollars) of producing x sneakers in a factory is given by c(x)=60x+750. The number of sneakers produced in (t) hours is given by x(t)=50t. Fund c(x(t)). Evaluate c(x(5)) and explain what this number represents.
Tuesday, December 16, 2014 at 2:25pm

Algebra I
5. Holly wants to invest $1000. The table below shows the value of her investment under two different options for two different years: Part A: What type of function, linear or exponential, can be used to describe the value of the investment after a fixed number of years using ...
Tuesday, December 16, 2014 at 12:13pm

algebra
How can you quickly determine the number of roots a polynomial will have by looking at the equation?
Tuesday, December 16, 2014 at 11:13am

math algebra
A rectangular box has a length of 8 ft and a width of 2 ft. The length of the three dimentional diagonal is 10 ft. What is the height of the box? I think answer is 12.96, but not sure. any help is appreciated thanks in advance
Monday, December 15, 2014 at 10:10pm

algebra
joe is planning a 5 hour canoe trip. he can paddle 4 miles per hour in still water and the current is 3 miles per hour. how far downstream can he go?
Monday, December 15, 2014 at 9:58pm

Algebra 1
suppose you can work a total of no more than 20 hours per week at your two jobs. Babysitting pays $5 per hour, and your cashier job pays $6 per hour. youneed to earn at least $90per week to cover your expenses. Write a system of inequalities that show s the various numbers of ...
Monday, December 15, 2014 at 9:29pm

Algebra 3
Suppose you are tossing an apple up to your friend on a third-story balcony. After x seconds the height of the apple is given by h= -16t^2+38.4t+0.96. Your friend catches the apple just as it reaches its highest point. How long does it take for the apple to reach your friend ...
Monday, December 15, 2014 at 9:26pm

pre algebra
Two bank robbers flee at 60 mph. 26 minutes later, a police helicopter follows at 120mph. How long til they catch them? I figured 39 minutes. I takes the police 13 minutes to get to the 26 mile mark. Then the robbers move 13 miles forward. then the police take 6.5 minutes to ...
Monday, December 15, 2014 at 9:14pm

Algebra 1
what is the equation to y= -1/12x+4 so that the 2nd line is parallel?
Monday, December 15, 2014 at 8:39pm

Algebra 1 thx
Antonia is saving for a video game. On the first day, she saves two dollars in her piggy bank. Each day after that, she doubles the number of dollars she saved on the previous day. How many dollars does she save on the sixth day?
Monday, December 15, 2014 at 7:23pm

Algebra 1
The square tile shown has a side length of 10.5 inches. What power can you write to represent the area of the tile? Write the power as an expression with a base and exponent, and then find the area of the square.
Monday, December 15, 2014 at 5:53pm

Algebra 1 thx
Hadley's softball team has a phone tree in case a game is canceled. The coach calls 3 players. Then each of those players calls 3 players, and so on. How many players will be notified during the third round of calls? Please help answer
Monday, December 15, 2014 at 5:51pm

Algebra ASAP thx
Tim is reading a book. On Monday he reads 3 pages. On each day after that, he reads 3 times the number of pages that he read on the previous day. How many pages does he read on Thursday?
Monday, December 15, 2014 at 5:45pm

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