7,189 Answered Questions for the topic Math Help
Math Help
12/16/17
math question of functions and gas and meaning of the statement
When starting with a full tank of gas, the function Q(x) represents the number of gallons of gas left in a car after it has driven x miles.What does the statement, Q(100) = 5, represent? A. After...
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Math Help Math Word Problem
12/16/17
Find a number such that one-half of the number is 14 less than two-thirds of the number.
i suck at math, need help
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Math Help
12/16/17
What is 19( -2 + 7k) simplified? i thought it was -38+133k but it's marking me as wrong
My teacher has online quizzes for us to take, and i just cant solve this problem. but we need 100% mastery to pass! HELP PLEASE
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Math Help
12/15/17
a swimming pool fills 1/20 of the way in 15 minutes. at that rate, how much will be filled in an hour?
Please help
12/15/17
Why is 3 negative?
My teacher showed us the answer key to the study guide for finals, and the fraction to graph was 3x+5y=-20. I changed it to slope intercept form and got y=3/5x-4. But the answer key showed that...
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Math Help
12/15/17
A car is driving at a speed of 50 mi/h. What is the speed of the car in feet per minute?
I really need help with this problem. It's kind of confusing.
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Math Help
12/15/17
Use the equation y= k/x to find k, the constant variation; if Harold has $209 in his bank account, when he has 3 bills to pay. X represents the number of bills
x represents the number of bills he has to pay each month and y represents the money in his savings account. Also, another question I have is if Harold has 5 bills to pay this month, how much money...
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Math Help
12/15/17
Let g(x) = -4x2 - 3x - 7. Find the following: g(-1) , g(0) and g(3) show all work for each of them
Show how to solve each of them
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I'm having trouble with series.
Let f(x)= ∑∞n=0 (x^n)/(n!)
Find f(0)= 1
f(1)= e
f'(x)= f(x)
f''(x)= f(x)
Not exactly sure how we're supposed to go about finding those answers, or how to start.
12/15/17
A ball is thrown downward from the top of a 130-foot building with an initial velocity of 22 feet per second. The height of the ball h after t seconds is given
A ball is thrown downward from the top of a 130-foot building with an initial velocity of 22 feet per second. The height of the ball h after t seconds is given by the equation .h= −16t2−22t+130....
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12/14/17
Math word problem
An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two...
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Math Help
12/14/17
What is the slope of a line with the points (-4, 9) and (3, -5)?
I need math help please...
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12/14/17
Find the number of subsets of the set {5, 10, 15}.
Please help as soon as possible. Thank you
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12/13/17
What two numbers equal -18 when multiplied, but -7 when added?
Thank you for helping!
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12/13/17
Can some one please help answer this math question for me!!
Maria plays tennis only on Fridays. She plays basketball every third day. if Maria plays tennis and basketball on Friday, how many days will it be before she plays tennis and basketball again on...
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Math Help
12/13/17
True or False? TO solve an equation with a coefficient that is a fraction, divide each side of the equation by the reciprocal of the fraction.
The teacher is asking us to figure it out on our own but I don't feel like it so I am asking you guys,
thanks for anyone who helps
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12/13/17
If A = {1, 3, 5, 7, 9, 11} and B = {set of prime numbers}, find the number of subsets of A∩B.
Help please
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12/13/17
What is the remainder when (x -1)^5 is divided by x - 1 ?
HELP PLEASE
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12/13/17
If A = {a, b} and B = {2, 5}, find the number of subsets of AUB.
HELP PLEASE
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Math Help
12/12/17
2 cos theta+3= -sec theta
i need help with my math problems for homework because they were not taught to me.
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12/12/17
The Law of Sines
The path of a satellite orbiting the earth causes it to pass directly over two tracking stations A and B, which are 75 km apart. When the satellite is on one side of the two stations, the angles of...
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12/12/17
An original recipe is 35 ounces that is 4% salt. How much water needs to be added for it to be 2.7% salt?
how would I put this is algebraic form and what’s he answer? Thanks
Math Help
12/12/17
sarah is blowing up spherical balloons for her brothers birthday party. one of the balloons had a radius of 3 inches. round to the nearest tenth
idk how to do it
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12/12/17
Need some help with this math problem?
A basketball player made 12 out of 15 throws he attempted. He wants to know how many consecutive free throws he would have to make to raise the percent of successful free throws to 85%. Write an...
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word problem
Nuclear energy derived from radioactive isotopes can be used to supply power to space vehicles. The output of the power supply for a power plant is given by the function defined by y =...
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