Monday
June 27, 2016

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra 2
Did I solve these problems correctly? 1. f(x)=-3x + 2 g(x)=3x^2 -x + 2 Find (f + g)(x) -3x+2+(3x^2-x+2) =3x^2-3x-x+4 =3x^2-4x-4 2. f(x)=x -1 g(x)=2x^2 -2x -5 Find g(f(x) ) 2x^2 -2x -5(x-1) =2x^2 -2x -5x+5 =2x^2 -7x+5 3. f(x)=3x + 2 g(x)= -2x2 -3x + 5 Find g(f(x) ) -2x^2-3x+5(...
Tuesday, November 10, 2015 by Jamie

Math (algebra)
Multiply (3x – 7)(3x – 5) A. 9x^2 + 6x + 35 B. 9x^2 + 36x + 35 C. 9x^2 – 36x – 35 D. 9x^2 – 36x + 35 I said it was letter A, but I got it wrong...please help
Tuesday, November 10, 2015 by Beth

pre algebra
molly paid 8% in sales tax on her holophone,a phone that shows the person you're talking to in 3D. if molly paid $416 in sales tax on the phone, what was its pre-tax price?
Tuesday, November 10, 2015 by misty

algebra
Josie rented a car for one day from a company that charges $30 per day plus $0.20 per mile. Write a function to help Josie calculate her bill
Tuesday, November 10, 2015 by amber

College Algebra
The winning candidate for president of the freshman class received 2988 votes. If that was 150 more than half the votes cast, how many freshmen voted?
Tuesday, November 10, 2015 by Hey

pre algebra
in a math class with 31 students 27 earned a passing grade in a biology class with 21 students 17 earned a passing grade... what fraction of the math students earned a passing grade
Tuesday, November 10, 2015 by tiawannnia

Algebra
The length of a rectangle is three times its width. If the area of the rectangle is 108 yd^2, find its perimeter.
Monday, November 9, 2015 by Anonymous

algebra
the sum of two numbers is 48 and the difference is 22. What are the numbers?
Monday, November 9, 2015 by bubba

Algebra
Write an algebraic expression for the following: the quotient of a number and 0.76, increased by 6.5 the product of a number cubed and the sum of 57.6 and 3.42
Monday, November 9, 2015 by Anonymous

Algebra 1
Eight times the sum of 11and a number is 123
Monday, November 9, 2015 by Jessica

algebra
A recipe calls for 4 cups of sugar to make 4 dozen cookies. Use the proportion to calculate how much sugar is needed to make 8 dozen cookies. A 2 cups B 8 cups c 8..5 cups D 12 cups. Is it 8 cups of sugar?
Monday, November 9, 2015 by shirley

Algebra
The table shows the relationship between the number of players on a team and the minutes each player gets to play Players Minutes 7 35 8 30 9 25 10 20 Is the relationship a function that is decreasing or increasing; is the relationship a functions that is linear or nonlinear ...
Monday, November 9, 2015 by BUBBLES

algebra 1
rene needs to determine the equation of a line passing through the point (-1,7) that is parallel to y=-3x-4 a. y=-3x+7 b. y=-3x+4 c. y=3x-7 d. y=3x-4
Monday, November 9, 2015 by kim

pythagorean triple
Pre-algebra which set represents a pythagorean triple? a. 60,70,100 b. 18,24,30 c. 10,14,17 d. 10,20,30
Monday, November 9, 2015 by ak

math
Pre-algebra which set represents a pythagorean triple? a. 60,70,100 b. 18,24,30 c. 10,14,17 d. 10,20,30
Monday, November 9, 2015 by ak

algebra
His job pays a starting salary of $32,000 with a 5% raise at the end of each year. Give his salaries for the first 5 years he works.
Monday, November 9, 2015 by o

ALGEBRA
bean plants grow rapidly. a bean plant is 16 inches tall. Tomorrow it will be 24 inches tall, the next day it will be 32 inches tall and on the next day it will be 40 inches tall. Write a rule to represent the heights of the bean plant as an arithmetic sequence. how tall will ...
Monday, November 9, 2015 by BUBBLES

algebra
if 22.5 L of nitrogen at .984 atm are compressed to .953 atm at constant temperature what is the new volume
Monday, November 9, 2015 by four

Simple algebra/Physics problem
A proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 2.90 times the speed of the proton initially at rest, find the following. (a) the speed of ...
Sunday, November 8, 2015 by PersonWhoNeedsHelp

Algebra
One type of anyifreeze is 40% glycol, and another type of antifreeze is 60% glycol. How much of each kind should be used to make 100 gallons of antifreeze that is 48% glycol? How do i show my work? Thanks
Sunday, November 8, 2015 by Gabe

Algebra 2
Jack is selling wristbands and headbands to earn money for camp. He earns $2 for each wristband and $3 for each headband. He wants to earn at least $50. He needs to sell at least 5 wristbands. Which system of inequalities is shown in the graph of the solution below? • 2x...
Sunday, November 8, 2015 by Sandra

Algebra 2
Give the domain of the function. g(x)= x^3-1 I think the domain is all real numbers. Am I wrong? If so why?
Sunday, November 8, 2015 by Jojo

Algebra
How do I solve: Translate "y more than 4 is -36". Then solve the problem. Hope someone could help me out with this annoying question!
Sunday, November 8, 2015 by Bob

8th grade pre algebra line segments
It's asking me to use a grid and lengths of line segments to give a geometric argument but I'm not sure what that means or looks like.
Sunday, November 8, 2015 by Alexandria

Algebra 1
For the data in the table, does y vary directly with x? If it does choose an equation for the direct variation. x|y 8|11 16|22 24|33 a. yes; y=2.75x b. yes; y=0.6875x c. yes; y= 1.375x d. no; y does not vary directly with x i think its d, but i'm not sure. please help. thx!
Saturday, November 7, 2015 by basketball&batman

Algebra II
Write an equation for the following transformation of y = x: a vertical compression by a factor of 1/2. Options: y = -1/2x y = 1/2x y = 2x y = -2x Please help me :)
Saturday, November 7, 2015 by Katarina

Algebra
Scatter plots and least square lines. The number of home runs hit by a player. 1990 1991 92 93 94 95 96 97 98 99 39. 22. 42 9. 9. 39 52 58 70 65 Find the equation of the least square line? Y=4.9x+18.5 Find the correlation, r, to the nearest hundredth? 0.68 Use the least square...
Saturday, November 7, 2015 by dad

Algebra
Greg is paid double- time for each hour worked over 45 hours in a week. Last week he worked 53 hours and earned $732. What is his normal hourly rate?
Saturday, November 7, 2015 by Antonio

Algebra
The variable x in the expression 3+2x is replaced in succession by 1,2,3 and 4. Find the sum of the resulting numbers. Thank you for your time and please help! I am very confused.
Saturday, November 7, 2015 by Alana

Help Please, Oh Please--Algebra
Identify 3x^5 − x^2 + 4x as a monomial, binomial, or trinomial. A. trinomial B. binomial C. monomial D. none of these
Friday, November 6, 2015 by Annabelle

Algebra
If one earthquake is 160 times as intense as another, how much larger is its magnitude on the Richter scale? (Round your answer to one decimal place.)
Friday, November 6, 2015 by Julia

Algebra 2: is anyone here?
The line that passes through the point (2, −8) and has a slope of −1 is given by the equation y +[ ] =[] (x −[] )?
Friday, November 6, 2015 by Clarie

Algebra
If your truck gets 22 high way miles per gallon and your traveling 250 miles. It takes $50 to fill your tank. Gas is $2.40 a gallon how much are you spending on gas
Friday, November 6, 2015 by Kayla

PLEASE HELP ASAP!! Algebra
The probability that Shania is on time for school is 1/2. Find the probability that Shania arrives on time for school for the next 5 days. Express your answer as a percent, to the nearest tenth of a percent. A. 50% B. 15.6% C. 11.4% D. 3.1% ALSO, PLEASE EXPLAIN THOROUGHLY!! ...
Friday, November 6, 2015 by Dakota

Please Help ASAP!! Algebra
A number cube is rolled with these results: 64 ones, 67 twos, 73 threes, 59 fours, 72 fives, and 71 sixes. What is the experimental probability of rolling an even number? Write your answer as a percent, to the nearest tenth of a percent... A. 51.9% B. 48.5% C. 53.6% D. 46.8% ...
Friday, November 6, 2015 by Dakota

Foundation aLGEBRA
Tell whether the sequence is arithmetic. If the sequence is arithmetic, write a function rule to represent it. –3, –1, 1, 3,...
Thursday, November 5, 2015 by queen sipp

college algebra
A piece of machinery valued at $30,000 depreciates at a rate of 10% yearly. How long will it take for it to reach a value of $15,000?
Thursday, November 5, 2015 by Gabriella

Algebra
Consider the following polynomial function F(x)=-2x^3-x^2+13x-6 to answer the following question. If (x+3) is a factor of f(x) rewrite f(x) in completely factored form and identify the zeros f(x).
Thursday, November 5, 2015 by MiKayla

Please Help!!! Algebra...
Two urns each contain green balls and blue balls. Urn I contains 4 green balls and 6 blue balls, and Urn II contains 6 green balls and 2 blue balls. A ball is drawn at random from each urn. What is the probability that both balls are blue? A. 2/15 B. 3/20 C. 1/10 D. 4/153
Thursday, November 5, 2015 by Dakota

Pre-Algebra
Two urns each contain green balls and blue balls. Urn I contains 4 green balls and 6 blue balls, and Urn II contains 6 green balls and 2 blue balls. A ball is drawn at random from each urn. What is the probability that both balls are blue? A. 2/15 B. 3/20 C. 1/10 D. 4/153
Thursday, November 5, 2015 by Dakota

Pre-Algebra
Suppose you roll two number cubes and pick a letter of the alphabet at random. Find the probability you roll 2 even numbers and pick one of the vowels a, e, i, o, or u. A. 7/104 B. 5/104 C. 1/6 D. 1/104
Thursday, November 5, 2015 by Dakota

Algebra 1- Please help
Tell whether the sequence is arithmetic. If it is, what is the common difference? a. no (as in, its not arithmetic) b. yes;4 c. yes;5 d.yes;6 i think its a
Thursday, November 5, 2015 by basketball&batman

ALGEBRA
bean plants grow rapidly. a bean plant is 16 inches tall. Tomorrow it will be 24 inches tall, the next day it will be 32 inches tall and on the next day it will be 40 inches tall. Write a rule to represent the heights of the bean plant as an arithmetic sequence. how tall will...
Thursday, November 5, 2015 by BUBBLES

ALGEBRA
the ordered pairs pairs (1,36), (2,49), (3,64). (4,81), and (5,100) represent a function. What is a rule that represents this function y=x^2 y=36x y=(x+5)^2**** y=(x=6)^2
Thursday, November 5, 2015 by BUBBLES

Algebra 2
Get–Around Cab Company charges $2.50 upon entry and $2 per mile. Write the function that represents the cost C of a ride of m miles. I don't know what the formula is?
Thursday, November 5, 2015 by Priscilla

Math (Algebra)
Two groups went to the movies. The first group included 3 adults and 5 kids and paid a total of $71. The second group included 5 adults and 3 kids and paid a total of $81. If ticket prices were the same for each group, find the cost of each type of ticket.
Thursday, November 5, 2015 by Alyssa

Pre algebra
Write the following ratio in simplest form 32 min : 36 min A 8:9******************* B 8:36 C 32:9 D 128:144 In a sports equipment locker there are 81 balls and 45 baseball mitts. Write the ratio of balls to baseball mitts in simplest form A 9:5***************** B 10:18 C 10:5 ...
Wednesday, November 4, 2015 by orangygirl

Victoria Park
Algebra: Measurement One of the equal sides of an isosceles triangle is 3 m less than twice its base. The perimeter is 44 m. Find the lengths of the sides.
Wednesday, November 4, 2015 by Anthony

algebra
the sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times 5 the larger
Wednesday, November 4, 2015 by danielle

Algebra
Maria starts walking at 8:00 at 4 miles per hour. Nichole starts walking at 8:12. At what constant rate of speed will Nicole need to walk to catch Maria at 8:42?
Wednesday, November 4, 2015 by Maddie

algebra
How to write the expression twice the difference of x and y less than 12?
Wednesday, November 4, 2015 by Irene

Algebra
1. How many students chose walking as their preferred method of transportation? 6 3 9 none of these
Wednesday, November 4, 2015 by Dominique

Algebra 1
Identify the domain and range of the relation. {(9,6), (3,8), (4,9.5), (9,2)}
Wednesday, November 4, 2015 by basketball&batman

Algebra 1- Please help whenever you get the chance
Graph the function shown by the table. Tell whether the function is linear or nonlinear. x|y 0|1 1|2 2|5 3|10 i'm sorry, i don't have the graph, but is their any way this could work without it? Please help. Thanks
Wednesday, November 4, 2015 by basketball&batman

Algebra
If a certain number is added to the numerator and denominator of 11/13, the result is 11/12. Find the number.
Wednesday, November 4, 2015 by Sean

algebra or algebra1
A line with slope 3 passes through the point (0; 10). What is the y-coordinate of the point on the line with x-coordinate 2?
Wednesday, November 4, 2015 by sue

Algebra
The perimeter of the triangle is 49 units. Find the value of y. Side A: y+3 Side B: 4y-2 Side C: 3y
Tuesday, November 3, 2015 by Lisa

Pre Algebra
5. Find the length of a right triangle with legs of 5 ft. and 12 ft. A 11 Ft B 13 Ft C 17 Ft D 60 Ft 9. which of these nonterminating decimals can be converted into a rational number? A 0.48907542... b 0.02020202... C 0.92589542... D 0.10203040... 5.C 9.A
Tuesday, November 3, 2015 by orangygirl

algebra
At a banquet the ratio if the number of boys to the number of girls is 5:3. Halfway tjrough the banquet 20 boys leave and the ratio bexomes 5:4. How many girls are at thebbanquet?
Tuesday, November 3, 2015 by Anonymous

ALGEBRA
CHLOR PURCHASED A BOTTLE OF PERFUME FOR $1.60 PER 0.01 ONUNCE. WHAT IS THE UNIT C0ST OF THE PERFUME 1.60 DIVIDED BY 0.01=
Tuesday, November 3, 2015 by JACOB

Algebra
For the function f(x) = 5/x+4 find the average rate of change of f from 1 to x:
Tuesday, November 3, 2015 by Jk

Algebra
1. Find the slope of a line that passes through (-2 -3) and (1 1). a. 1/3 b. 1 c. 2 d. 4/2 2. For the equation -4y=8x, what is the constant of variation? a. -4 b. -2 c. 1 d. 2 3. What is an equation in slope-intercept form for the line that passes through the points (1,-3) and...
Tuesday, November 3, 2015 by Anonymous

Algebra 2
Show two steps to simplify each of the following expressions, and then calculate the value of each expression. 25 exponent 5/2 81 exponent 7/4
Tuesday, November 3, 2015 by Craig

algebra
Part A: Darla rented a room for 3 days at $285.00 per day. If she rents the same room for 6 days, it would cost $510. Write an equation in the standard form to represent the total rent (y) that Darla has to pay for renting the room for x amount of days. (4 points) Part B: ...
Tuesday, November 3, 2015 by Anonymous

8th grade algebra
Hello! I was working on a maths thing and I'm a bit lost on this one problem, would anyone mind explaining how to do this? ~A recipe called for 2 cups of flour to make two dozen (24) cookies. Write and solve a proportion to find how much flour is needed to make 54 cookies...
Tuesday, November 3, 2015 by Walrus King

Algebra
Graph the solution of the inequality. x<3 -
Tuesday, November 3, 2015 by Brandi

Algebra help fast
In 2009, the total population of North Carolina was 2,890,425 people. What was the population in scientific notation, approximately? 2.9 x 10^5 2.9 x 10^6 2.9 x 10^7 29 x 10^7 2.9 x 10^6 right?
Tuesday, November 3, 2015 by Person

Algebra 1
Task 2 In Task 1 you determined how much of your own money you’re willing to spend to get your business started. This is your limit—when making your product you can’t exceed this amount. a. Write an inequality that represents the fact that while making your ...
Tuesday, November 3, 2015 by 9thgradestudent

algebra or algebra1
What is the area of the triangle whose vertices are (−4, 0), (−10, 0) and (−7, −6)
Tuesday, November 3, 2015 by sue

algebra
two mechanics worked on a car the first mechanic worked for 15 hours and the second mechanic worked for 5 hours together they charged a total of 1525 what was the rate charged per hour by each mechanic if the sum of the two rates was 175 per hour
Tuesday, November 3, 2015 by Scott

algebra
There are 98 international units of vitamin D in 1 cup of milk. The function V(c)=98c represents the amount V(c) of vitamin D, in IUs, you get from c cups of milk. You have a 16 cup jug of milk. What is a reasonable domain and range for this function? How do I set up the ...
Tuesday, November 3, 2015 by jas

Algebra
The perimeter of the rectangle is 112 units. Find the length of side PQ (bottom). . Write your answer without variables. SR (top): 4z-2 SP (side):3z+2
Tuesday, November 3, 2015 by Anonymous

algebra
you are buying orange juice for $4.50 per container and have a gift card worth $7. TheFunction f(x)=4.50x-7 represents your total cost f(x) if you buy x containers of orange juice and use the gift card. How much do you pay to buy 4 containers of orange juice? Is this correct: ...
Monday, November 2, 2015 by julie

algebra
Suppose a parabola has vertex (-4,7) and also passes through the point (-3,8), write the equation of the parabola in vertex form.
Monday, November 2, 2015 by Lilah

Pre algebra
Which of these nonterminating decimals can be converted into a rational number A 0.48907542 repeating B 0.02020202 repeating C 0.92589542 repeating D 0.10203040 repeating ******* Paul is painting a square wall with an area of 115 square feet. To the nearest foot what is the ...
Monday, November 2, 2015 by orangygirl

Math Algebra
TechWiz Electronics makes a profit of $35 for each MP3 player sold and $18 for each DVD player sold. Last week, TechWiz sold a combined total of 130 MP3 and DVD players. Let x be the number of MP3 players TechWiz sold last week. Write an expression for the combined total ...
Monday, November 2, 2015 by Lisa

Math algebra 2
Identify the vertex the axis of symmetry,the maximum, or minimum value and the range of each parabola Y=x^2-4x+1
Monday, November 2, 2015 by Annie

pre algebra
If a sail of a ship is 10 feet long and has a diagonal length of 26 feet, what is the height of the sail in feet? A 29 B 24********** C 17 D 8
Monday, November 2, 2015 by orangygirl

Algebra
Write an equation in slope intercept form of the line that passes through the given point and is perpendicular to the graph of the given equation. (1,-6). X-2y=4
Monday, November 2, 2015 by dad

Algebra
Elsa has a job transporting soft drinks by truck. Her truck is filled with cans that weigh 14 ounces each and bottles that weigh 70 ounces each. There is a combined total of 820 cans and bottles in her truck. Let x be the number of 14-ounce cans in her truck. Write an ...
Monday, November 2, 2015 by Kaleb

Algebra
Determine whether the graphs of the given equation are parallel, perpendicular, or neither. Explain y=4x-2 -X+4y=0
Monday, November 2, 2015 by Mom

Algebra
The sum of the four angle measures of any convex quadrilateral is 360 degrees. Suppose that a convex quadrilateral has angle measures of 90, 10y+4, and 3y-2 degrees. Write an expression for the degree measure of the fourth angle.
Monday, November 2, 2015 by Lisa

Algebra
As oscar swam an 80 m river the current carried him 30 m downstream how far did he swim
Monday, November 2, 2015 by Diego

Pre-algebra
3 1/2+w-5 1/4=8 I'm totally confused on how to work this out!
Monday, November 2, 2015 by Mortal Kombat

algebra
With an 80 km/h head wind a plane can fly a certain distance in 4 h. Flying in the opposite direction, with the same wind blowing, it can fly that distance in one hour less. What is the plane’s speed?
Monday, November 2, 2015 by Kevin

Algebra 2
Can someone explain this inequality equation to me please? I'm so confused. Here's what I have so far. |2x – 1| + 10 ≥ 5 |2x – 1| + 10-10 ≥ 5-10 |2x – 1|≥-5 2x-1≥5, 2x-1≤-5 2x-1+1≥5+1, 2x-1+1≤-5+1 2x≥6, 2x...
Sunday, November 1, 2015 by Carrie

Algebra
Austin drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 8 hours. When Austin drove home, there was no traffic and the trip only took 5 hours. If his average rate was 21 miles per hour faster on the trip home, how far away does ...
Sunday, November 1, 2015 by Roger

algebra
Point D(-3,5) is a vertex of triangle DEF. After rotation of the triangle about the origin D us located at (3,5). Which of the following was the rotation of the triangle? A. 90* (degrees) clockwise B. 90* Counterclockwise C. 180* D. 360*
Sunday, November 1, 2015 by annonymous

algebra
which of the following are necessary to describe a rotation of a figure on a coordinate plane? choose all that apply the center of rotation the shape of the figure the number of degrees of the rotation the direction of the rotation
Sunday, November 1, 2015 by annonymous

algebra
roger is 5 feet tall and casts a shadow 3.5 feet longer. at the same time,the flagpole outside his school casts a shadow 14 feet long. write and solve a proportion to find the height of the flagpole.
Sunday, November 1, 2015 by masruja

Algebra 2
Did I solve this word problem correctly? In last week’s basketball game, the Lions scored 6 less than twice what the Bobcats scored. The sum of their scores is 30. How many points did the Lions and the Bobcats score individually? 2x+2x-6=30 2x+2x=36 4x=36 4x/4=36/4 x=9 ...
Sunday, November 1, 2015 by Ernie

algebra
a survey of 2,000 people was given to find their mode of transportation to work each day. the pie chart gives the results of people surveyed Bike 3.8% taxi 9.8% walk 3.4% bus 14.6% drive 68.4% how many traveled by bike to work?
Saturday, October 31, 2015 by lisa

algebra
A group of 1,200 people was surveyed to find their favorite choice of fruit. the pie gives results of people surveyed oranges 19.2% kwiw 16.2% bananas16.6% apples 30.2% other 12.8% of the people surveyed, how many prefer bananas?
Saturday, October 31, 2015 by lisa

Algebra
f(x)= 2(x + 8), find x if f(x) = 12. 2 40 -2 14 pls help me
Saturday, October 31, 2015 by Oscar

Algebra
Confused mom thanks for your help. Find the X and Y intercepts of the line that passes through the given points (-6,4), (3,-5)
Saturday, October 31, 2015 by Mom

Algebra 2
Is my work for this quadratic inequality correct? m^2 – 25 > 0 m^2 – 25 +25>0+25 m^2 >25 m>5,(m<-5) m<-5,m>5 (-∞ ,-5] ∪ [5, ∞ )
Friday, October 30, 2015 by Georgie

Algebra 2
Did I solve this quadratic inequality correctly? Is my work correct? 9t^2 + 1 ≤ -6t 9t^2 + 1 -(-6t) ≤-6t-(-6t) 9^2 +6t +1≤0 (3t+1)^2≤0 (3t+1≤0), (3t+1≥0), (t≤-1/3), (t≥-1/3) t=-1/3 (-∞, -1/3]
Friday, October 30, 2015 by Layla

ALGEBRA
Part A: Maria rented a coat at $285 for 3 days. If she rents the same coat for 6 days, she has to pay a total rent of $510. Write an equation in the standard form to represent the total rent (y) that Maria has to pay for renting the coat for x days. Part B: Write the equation ...
Friday, October 30, 2015 by Alison

algebra
Write the equation of the line that passes through the points (1, 7) and (5, 15) using function notation.   y = 2x + 5 y = 4x + 8 f(x) = 2x + 5 f(x) = 4x + 8
Friday, October 30, 2015 by Gaby

Algebra
Given that g(x) = 4x + 6, find the value of x that makes g(x) = 14.   -50 -5 2 8
Friday, October 30, 2015 by Gaby

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Homework Help: Math