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January 31, 2015

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

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algebra 1
6! -- 5! i don't understand this why does it have ! in this question?
Monday, February 25, 2013 at 7:15pm

college algebra
Transformation of ty then transformations of the graphs y=x^2or y=|x| to sketch a graph of f by hand. f(x)=2|x-6|-4
Monday, February 25, 2013 at 7:02pm

Algebra
Need help with two questions. I've been stuck on them for a while now. 1) Find a general form of an equation of the line through the point A that satisfies the given condition. A(−2, 5) slope 3/4 2)Find a general form of an equation of the line through the point A ...
Monday, February 25, 2013 at 6:58pm

algebra 1
you toss a coin 3 times. what is the probability that you get heads 0 times. is it 1/6 or 1/8
Monday, February 25, 2013 at 6:58pm

Algebra
Use a calculator to evaluate the expression. Write the result in scientific notation and in decimal form. Did I do think correctly? 6000000 * 324,000 =1.944*10^12 =1944000000000
Monday, February 25, 2013 at 6:50pm

Algebra
What is the value of b in the triangle shown below? The triangle they are showing is a right triangle...the length is 3b and the width is b...on the inside of the triangle it says 24in^2. A.–4 in B.4 in C.±4 in D.no solution Please help I do not know how to do ...
Monday, February 25, 2013 at 6:42pm

Algebra
What is the side length of a square with an area of 144x²? A.12 B.12x C.±12x D.no solution I think it is C...?
Monday, February 25, 2013 at 6:39pm

College Algebra help please
I dont understand this. The question is use the remainder theorem to evaluate P(x) as given. 1. P(x)=3x^3+11x^2+2x-16 and it gives me P(1/3)
Monday, February 25, 2013 at 6:08pm

college algebra
please help me solve this equation x-1/3x-1/2x-5=0
Monday, February 25, 2013 at 5:18pm

Algebra II
A rock is thrown upward with a velocity of 28 meters per second from the top of a 36 meter high cliff, and it misses the cliff on the way back down. When will the rock be 9 meters from the water below. Round to two decimal places.
Monday, February 25, 2013 at 4:30pm

Algebra II
2y^11/3+8y^8/3-10y^5/3=0
Monday, February 25, 2013 at 4:29pm

Algebra
solve the following quadratic 100x^4=400x^3+2100x^2
Monday, February 25, 2013 at 1:20pm

Algebra 2
4.)A diamond is purchased for $3500. Its value increases 5% each year. Find the value of the diamond after six years.
Monday, February 25, 2013 at 12:53pm

Algebra 2
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99 cm. a.)On which swing ...
Monday, February 25, 2013 at 12:51pm

Algebra 2
After one month at a new job you decide to save $50. Each month you plan to increase your savings by five dollars. a.)Write an explicit formula to model the amount you will save each month. b.)How much will you save in the seventh month?
Monday, February 25, 2013 at 12:42pm

Algebra
Ellen is 11 years older than Maja. Last year Ellen was twice as old as Maja. How old is Maja now?
Monday, February 25, 2013 at 12:26pm

algebra!
Find the number of pairs of coprime integers (n,m) such that 1≤n≤m≤20.
Monday, February 25, 2013 at 11:29am

algebra
Find an integer value of x such that when 3x−39 is divided by 2x, the quotient is 1 and the remainder is 50.
Monday, February 25, 2013 at 11:28am

algebra
How many pairs of integers (not necessarily positive) are there such that both a2+6b2 and b2+6a2 are both squares?
Monday, February 25, 2013 at 11:27am

Algebra
Mattie Evans drove 300 miles in the same amount of time that it took a turbo propeller plane to travel 1300 miles. The speed of the plane was 200 mph faster than the speed of the car.Find the speed of the plane.
Monday, February 25, 2013 at 9:17am

algebra
a,b and c are real numbers such that ab=44, bc=112 and a+c=13. What is the value of b?
Monday, February 25, 2013 at 1:28am

algebra
Find an integer value of x such that when 3x−39 is divided by 2x, the quotient is 1 and the remainder is 50.
Monday, February 25, 2013 at 1:25am

algebra
Find the number of pairs of coprime integers (n,m) such that 1≤n≤m≤20.
Monday, February 25, 2013 at 1:25am

algebra
How many pairs of integers (not necessarily positive) are there such that both a2+6b2 and b2+6a2 are both squares?
Monday, February 25, 2013 at 1:25am

algebra
a,b and c are real numbers such that ab=44, bc=112 and a+c=13. What is the value of b?
Monday, February 25, 2013 at 1:24am

algebra
Find an integer value of x such that when 3x−39 is divided by 2x, the quotient is 1 and the remainder is 50.
Monday, February 25, 2013 at 1:17am

college algebra
If a rocket is propelled upward from ground level, its height in meters after t seconds is given by h=-9.8t^2+88.2t. During what interval of time will the rocket be higher than137.2m? Do I set it up like this? -9.8(1)^2+88.2(1)+137.2 = 215.6 Then h=b/2a=9.8/215.6=22m 137.2+22=...
Monday, February 25, 2013 at 12:55am

Algebra 2 ..
1. Solve 3=log8+3logx 2. Solve 2logx-log4=0
Sunday, February 24, 2013 at 11:40pm

Algebra
What is the value of b in the triangle shown below? the trianle they show is a right triangle and the length shows 3b...the width just shows b...and the inside says 24 in^2 A.–4 in B.4 in C.±4 in D.no solution I think i is B..but its a guess..?
Sunday, February 24, 2013 at 10:51pm

Algebra
What is the side length of a square with an area of 144x²? A.12 B.12x C.±12x D.no solution I think it is C...? If I am right can you show your work please...I am just starting to understand these..thank you
Sunday, February 24, 2013 at 10:47pm

algebra
use distributive property to factore each expression 42q - 21
Sunday, February 24, 2013 at 9:58pm

Algebra II
2y^11/3+8y^8/3-10y^5/3=0
Sunday, February 24, 2013 at 9:57pm

Algebra II
(z^2+6z)+14(z^2+6z)+45=0
Sunday, February 24, 2013 at 9:17pm

Algebra II
A rock is thrown upward with a velocity of 28 meters per second from the top of a 36 meter high cliff, and it misses the cliff on the way back down. When will the rock be 9 meters from the water below. Round to two decimal places.
Sunday, February 24, 2013 at 9:11pm

Algebra
Mr. Rodney's English class is made up of 28 students. He has 6 ESL students, 10 remedial students, and 5 advanced learners. ESL students make up 1/5 of the remedial students and 3/5 of the advanced learners. 1. What is the probability that a student is ESL and remedial? 2...
Sunday, February 24, 2013 at 8:59pm

algebra 1
Your family decides to visit your grandparents that live in ohio. You drive at an average rate of 55 mph when driving in Indiana and 65 mph when driving in Ohio. The entire trip of 295 miles takes 5 hours. How long does it take to reach the Indiana-Ohio border?
Sunday, February 24, 2013 at 8:56pm

algebra
what are the intercepts of y=2x+2
Sunday, February 24, 2013 at 8:41pm

math algebra
find the vertex 6x^(2)+84+294
Sunday, February 24, 2013 at 7:44pm

algebra
find the domain of each rational expression each polunomial must be fully factored and that you can only cancel factors you can not cancel terms. x^2-49 over 2x-1 and x^2-14+49 over 1-2x
Sunday, February 24, 2013 at 7:16pm

algebra 2
Express the sum in the simplest form. 3x/x+5 + 7/x+5
Sunday, February 24, 2013 at 7:06pm

algebra
4y^3-4y^2+3-y
Sunday, February 24, 2013 at 6:31pm

Algebra
Suppose that an insurance agent offers you a policy that will provide you with a yearly income of $50,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 5% compounded annually?
Sunday, February 24, 2013 at 6:18pm

algebra
If a rocket is propelled upward from ground level, it's height in meters after t seconds is given by h=-9.8t^2+88.2t. During what interval of time will the rocket be higher than 137.2m? h=9.8t^2+ 88.2t I divided both sides by -9.8 which gave me t^2=-9 But I can't ...
Sunday, February 24, 2013 at 6:15pm

Algebra class!
WEEK 5 - Work Rates You work in retail. In the past you inventoried and shelved the weekly UPS shipment in 2 hours. Your co-worker usually takes 3 hours to do the UPS shipment. How long will it take the two of you working together to finish this week’s UPS shipment? 1)...
Sunday, February 24, 2013 at 5:54pm

Algebra II
A rectangular auditorium seats 900 people. The number of seats in each row exceeds the number of rows by 11. Find the number of seats in each row.
Sunday, February 24, 2013 at 5:48pm

Algebra
-2(y-4)-(3y-2)=-2-(6y-2)
Sunday, February 24, 2013 at 4:40pm

algebra
can anyone help me solve 14+ 6/18x = 40
Sunday, February 24, 2013 at 1:27pm

algebra
Provide A Reason For Each Step Of Simplifying The Expression 3 3(4p-1)-7p
Sunday, February 24, 2013 at 1:06pm

Algebra II
A rock is thrown upward with a velocity of 19 meters per second from the top of a 21 meter high cliff and it misses the cliff on the way back down. When will the rock be 11 meters from the water below?
Sunday, February 24, 2013 at 12:23pm

Algebra
x+3y>-3 and 4x+y=4
Sunday, February 24, 2013 at 12:16pm

MATH- Algebra 2
[1/3,1/2] Can you please please graph this in interval notation!! Thank you so much!
Sunday, February 24, 2013 at 12:10pm

Algebra
The owner of a hair salon charges $20 more per haircut than the assistant. Yesterday the assistant gave 12 haircuts. The owner gave 6 haircuts. The total earnings from haircuts were $750. Hw much does the owner charge for a haircut? Solve by writing and solving a system of ...
Sunday, February 24, 2013 at 10:15am

algebra
A video game manufacturer is planning to market a new machine. The fixed costs are $550,000 and the variable costs are $120 per machine. The wholesale price of the machine will be $140. How many game machines must be sold for the company to make a profit? my answer was 27,500 ...
Sunday, February 24, 2013 at 3:13am

algebra
A car rental agency charges $250 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for
Sunday, February 24, 2013 at 1:32am

College Algebra
need help finding the distance using the distance formula please!!! (0,0) (x,y)
Saturday, February 23, 2013 at 9:30pm

college algebra
now i understand both intersection and union but not with an infinity. how do i figure this out (-infinity,4)n(0,infinity)
Saturday, February 23, 2013 at 7:28pm

College Algebra
Hello, I have been trying to do my math homework for a few hours now and can not figure out how to find the indicated intersection or union in interval notation. Example: (-1,5)n[0,8) Please help me!!
Saturday, February 23, 2013 at 6:14pm

algebra
FIND THE VALUE OF K, SO THAT THE EXPRESSION IS A PERFECT SQUARE TRINOMIAL. x^2+6x+k k=
Saturday, February 23, 2013 at 4:04pm

algebra
electricity costs 7.57 a month plus 8.77 per kilo watt hour for the first 400 kWhr and 6.574 per kWhr for all useage over 400 in a month. what is the cost for 300 kWhr? 2638 What is the cost of 700? 7.57+8.77 times 400 and 6.574 times 300? 5487.77 I think. I need to write a ...
Saturday, February 23, 2013 at 3:33pm

algebra
A few more question Id like for someone to check please. 1) what are the vertex, focus, and directrix of the parabola with the given equation? x^2-8x-28y-124=0 vertex (4,-5) focus (0,7) directrix y=-12 2) write an equation of a circle with given center and radius. center(-7,-6...
Friday, February 22, 2013 at 11:21pm

algebra
Can someone check my answers please and if Im wrong please explain. 1) graph 4x^2+4y^2=64. what are the domain and range? domain;all real numbers range;-4<=4<=4 2) graph 4x^2+y^2=9. what are its lines of symmetry? it has two lines of symmetry, the x axis and the y axis 3...
Friday, February 22, 2013 at 11:07pm

Algebra 2 ..
Simplify. 1. Log base 4 of 256^2 IS THE ANSWER 8....IF SO AM I SMART? 2. Log of 45 ^x Is the answer 1.65X? 3. Log base 6 of 12 ^(x+1) Is the answer 1.39x+1.39?
Friday, February 22, 2013 at 10:19pm

Algebra
I am confused on how solve this substitution problem 4y+3=3y+x 2x+4y=18 If you can, show work please (:
Friday, February 22, 2013 at 9:21pm

algebra 1
1/a-y=1/y solve for "y"
Friday, February 22, 2013 at 7:07pm

Algebra 1
The first of three pipes fills a tank in 12 minutes and a second pipe in 10 minutes.If both these pipes and also a third pipe are open, the tank is filled in 4 minutes. How many minute will the third pipe alone require to fill the tank? Just need an equation. Thank you!
Friday, February 22, 2013 at 6:41pm

Algebra 1
3(n)-2(2n+2)=1/3(n+4) help please, show your work. thank you!
Friday, February 22, 2013 at 6:18pm

Algebra 1
The first of three pipes fills a tank in 12 minutes and a second pipe in 10 minutes. If both these pipes and also a third pipe are open the tank is filled in 4 min. How many minutes will the third pipe alone require to fill the tank? My teacher told me to use a chart and an ...
Friday, February 22, 2013 at 5:31pm

Algebra 1
Find three consecutive even numbers such that the difference between 3 times the first number and twice the second number is 1/3 the third number. also, my teacher told me to use an equation.
Friday, February 22, 2013 at 5:12pm

algebra
Five (5) years ago, you bought a house for $171,000, with a down payment of $30,000, which meant you took out a loan for $141,000. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following information: ...
Friday, February 22, 2013 at 3:09pm

college algebra 1111
solve. 2z^2-7=-48
Friday, February 22, 2013 at 12:41pm

Algebra II
A line has a slope of 2 and contains the points (1, 3) and (2, y). The value of y is what? Please explain in detail
Friday, February 22, 2013 at 10:03am

algebra 1
thr ratio of two integers is 6:13 the smaller interger is 54. find the larger interger
Thursday, February 21, 2013 at 10:21pm

Algebra
(2y-4)/(y-2)
Thursday, February 21, 2013 at 8:38pm

college algebra
driving along a crowded freeway you notice that it takes a time to go from one mile marker to the next. when you increase your speed by 8.4 mi/hr the time to go one mile decreased by 14 seconds. What was your original speed?
Thursday, February 21, 2013 at 7:41pm

Algebra
How many ounces of other metal must be added to 56 ounces of pure silver to make a composition that is 70% silver? Please help me set this problem up
Thursday, February 21, 2013 at 7:09pm

Algebra
Which is the best measure of central tendency for the type of data below–the mean, the median, or the mode? Explain. Hours of sleep each night A.Median; there will be outliers B.Range; there are no outliers C.Mode; the data are non-numeric D.Mean; the outliers are limited...
Thursday, February 21, 2013 at 7:00pm

Algebra
In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 liked both pepperoni and banana peppers on their pizza. If 65 students were surveyed, how many students do not like banana...
Thursday, February 21, 2013 at 6:53pm

Algebra
How many ounces of other metal must be added to 56 ounces of pure silver to make a composition that is 70% silver?
Thursday, February 21, 2013 at 6:49pm

Algebra
Simplify the radical. Assume that all variables represent positive real numbers. cube root (120m^20 n^2 / mn^14)
Thursday, February 21, 2013 at 6:28pm

algebra
i am having trouble understaing how to write these out in simplest form please help a. 7^3x7^2x8^5/ 8^4x7x8^-7 for this i got 7/8 b. (a^-2b^4c^3)2 can you explain and show me how to do this?
Thursday, February 21, 2013 at 5:34pm

algebra 2
Can you find the error for me in this equation, find the explicit formula, evaluate the formula for n? I think the error is in the a2-a1 formula.and the -62.50. I know the pattern is 62.50 paid per month. Your uncle loaned you some money and did not charge interest. The amount...
Thursday, February 21, 2013 at 2:59pm

pre-algebra
what is the mode for this set of numbers97,86,93,56,34,39,47,62,88,54,81
Thursday, February 21, 2013 at 2:29pm

Algebra
Which equation represents the axis of symmetry of the function y = –2x² + 4x –6? (1 point) y = 1 x = 1 x = 3 x = –3
Thursday, February 21, 2013 at 12:44pm

algebra
How many rational numbers are there between 0 and 1?
Thursday, February 21, 2013 at 11:32am

Algebra I
The cost of 4 scarves and 6 hats is $52. The cost of two hats is $1 more than the cost of one scarf. What are the costs of one scarf and one hat? Please show me how to set this up and work it.
Thursday, February 21, 2013 at 11:27am

algebra
what is an equation of a parobola with the given vertex and focus? vertex(5,4) and focus(8,4) Can someone show me the steps to get the equation please?
Thursday, February 21, 2013 at 11:07am

Algebra
What are the coordinates of the vertex of the graph of the function y = –3x² –12x + 3? A.(–2, 29) B.(2, –15) C.(2, –9) D.(–2, 15) I think it is D?
Thursday, February 21, 2013 at 11:01am

Algebra
What are the coordinates of the vertex of the graph of the function y = –x² + 6x –11? A.(3, –2) B.(3, 16) C.(–3, –29) D.(–3, –20) I think it is A. Can you show me your work. I am not positive on the answer..Thanks
Thursday, February 21, 2013 at 10:59am

algebra
x-9+-6x+5 A. 14 B. 7 C. 2 D. 21 thanks for your help
Thursday, February 21, 2013 at 2:53am

MAT222 Intermediate algebra
Solve a^1/2 / a^2
Thursday, February 21, 2013 at 12:44am

Algebra 2 ..........
Solve for a and b in y=ab^x.
Thursday, February 21, 2013 at 12:30am

Algebra 2
rwq
Wednesday, February 20, 2013 at 11:42pm

algebra (checking answer)
f(g)=(x-4)^2+6 Sketch a graph of f(x): 4 on y axis and up 6 Identify the vertex: (4,6) Identify the intervals where f(x) is increasing or decreasing: it increasing [6,00) Thanks for your help:-)
Wednesday, February 20, 2013 at 9:43pm

algebra
sonya's average in math class is an 84 after 3 tests. what must she get on the next test to raise her average to an 88?
Wednesday, February 20, 2013 at 9:27pm

algebra
carl has a box with a length width and height of 12 inches. she needs a box that is 4 inches longer, not as high, yet still has exactly the same width and volume. what are the new dimensions? which box requires more material to construct? PLEASE HELP ME!! :(
Wednesday, February 20, 2013 at 9:26pm

algebra
How do i find the X-Intercept and Y-intercept in this equation : Y=3x+1
Wednesday, February 20, 2013 at 7:59pm

algebra
simplify (5x^2-3x-8)??
Wednesday, February 20, 2013 at 7:39pm

algebra
why was jesse james in the hospital
Wednesday, February 20, 2013 at 7:29pm

algebra
where should l go and check my answers
Wednesday, February 20, 2013 at 7:27pm

algebra
solve each system by graphing y=1 y=-5 over 2x+4
Wednesday, February 20, 2013 at 7:20pm

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