08/20/16

gina is 9 years younger than her sister, bridgette. two years ago, bridgette was twice as old as gina was. how old is gina
I need help answering this math problem 
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08/20/16

Write out the 3 x 3 matrix A when Aij = ii + jj - ij
Write out the 3 x 3 matrix A when Aij = ii + jj - ij
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08/19/16

Polynomial
A research firm has calculated that the annual sales of a particular corporation can be represented by the Polynomial 0.08x2 + 540x +34965854. The corporation has two divisions and the annual sales... more
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08/19/16

Polynomials
A rectangle is 4x2 -3 and 2x2 -x-3 in its length and width. What is its perimeter?
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08/19/16

Annika and April are working on the given problem.
(x-4)(x+5)=0   Annika says that the answers are -4 and 5, while April says that the answers are 4 and -5. Who is correct and why?  
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08/19/16

High school maths
Suppose Doug kicks a soccer ball straight up into the air with an initial velocity of 96 feet per second. The function h(t)=-16t^2 +96t gives the height, in feet, of the soccer ball after t... more
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08/19/16

Give the x intercepts of the following equation
Give the x intercepts of the following equation, approximate if necessary.   y=-3x^2 -1
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08/19/16

The temperature in a town is 36.6 degrees during the morning and -12.6 degrees at night. What is the temperature change from day to night?
pleas tell how you got the answer
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08/19/16

When tom simplified the expression -2.6 + (-5.4) he got 2.8. What mistake did tom likely make?
Can you also tell how you got the answer
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08/19/16

algebra problem
The shortest side of a right triangle measures 7 m. The lengths of the other two sides are consecutive integers? - the hypotenuse being the longer of the two. Find the lengths of the other two sides.
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08/19/16

What is the length of the longest side of a triangle that has the vertices (2, 6), (-4, 6), and (-4, 4)? A. 2/10 units B. 40 units C. /10 units D. 4/10 unit
What is the length of the longest side of a triangle that has the vertices (2, 6), (-4, 6), and (-4, 4)?A. 2/10 unitsB. 40 unitsC. /10 unitsD. 4/10 units
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08/19/16

I need help with this word problem
An art director has 75 photos in an art exhibit. of these, 9 are color photos and 6 are black and white photos. The director wants to add more color photos so that they represent 25%of the photos... more
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08/19/16

Let f(x) = 9x - 2 and g(x) = -x + 3. Find f(g(x)).
I need help finding f(g(x))
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08/19/16

Given the following sets. A = {0, 1, 2, 3} B = {a, b, c, d} C = {0, a, 2, b}
Given the following sets.A = {0, 1, 2, 3}B = {a, b, c, d}C = {0, a, 2, b}A = {0, 1, 2, 3}B = {a, b, c, d}C = {0, a, 2, b}   Find A ( Its a U but upside down) B.   these are the choices im so... more
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08/19/16

Two mechanics.
Two mechanics work on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they chrged a total of $2375. What was the rate charged per hour by each... more
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08/19/16

2 mechanics. 5 hours and 15 hours
Two mechanics work on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they chrged a total of $2375. What was the rate charged per hour by each... more
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08/18/16

Stuck.....
Is the sequence a geometric sequence? 10, 13, 16, 19, 22
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08/18/16

trying to hekp my daughter but still confuse
a population of bacteria is increasing exponentially. the function f(x)=3(5)^t models the number of bacteria after t hours/ what is the population of bacteria after 3 hours?
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08/18/16

Please stuck
A species of bacteria has an hourly growth rate of 5 and an initial population of 12. Which exponential function would represent the growth rate after t... more
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08/18/16

please help
 Evaluate f(x) = 8(2)^x for x = -3
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08/18/16

please help
A population of rabbits is growing exponentially. The function f(x) = 5(2)t models the number of rabbits after t months. What is the population of rabbits after 3 months?
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08/18/16

Algebra Help
So, the question is:   Beth left the movie theater and traveled east. Heather left three hours later traveling 42 km/h faster in an effort to catch up to her. After two hours Heather finally... more
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08/18/16

Solve the system of linear equations using substitution.
x+4y=7 2x-3y=3
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08/18/16

Alvins age is two times Elgas age. The sum of their ages is 48. What is Elgas age?
Please help, I am totally stumped and I know it is that hard but it's been a while since I took algebra.
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08/18/16

Need help!!!!!
 What were Mesopotamia's conversion and deities?
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