7,189 Answered Questions for the topic Math Help

Math Help Math Algebra Fractions

09/19/17

Does each of the following equations describe a line that includes the points (1, -1 3/4) and (-2, 3 1/4)?
A. y= -5/3x-1/12 •Yes or •No B. y= -13/4= -1/12(x-1) •Yes or •No C. 20x+12y=-1 •Yes or •No
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Math Help

09/19/17

how many differnt groups of balls can you end up with?
in the ball closet, there are 5 basketballs, baseballs, footballs. you go in and pick 3 items at random.assuming all the balls are marked differently.
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09/18/17

Solve the trigonometric equation for the interval 0<x<2pi
4 sin x cos x - 2√3 sin x - 2√2 cos x +√6=0   interval 0≤x<2pi
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Math Help

09/18/17

complex numbers
Evaluate the expression (square root of -9)/(square root of -1 and square root of -3) and write the result in the form of (a+bi)
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Math Help

09/18/17

question below
if x-3=27,x= show work please
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Math Help

09/18/17

question below
if 2 √c + 3 =5, what is the value of c? show work please
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Math Help

09/18/17

question below
if n-4= 1/28,561, what is the value of n? show work please 
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09/18/17

Math Help Plz
1. Find the domain and range for f(x)=√2-x. Given the graph below, determine if the relation is a function, Explain your answer. a. If the relation is a function, state the domain and range in... more
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09/18/17

Quick Math Help
1. When is a relation a function? 2. Write the following using function notation, “divide the input by 2, then add 1. 3. Graph the function using x- and y-intercepts. Given, , make a table, plot... more
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Math Help Math Perimeter Area

09/18/17

Find the area of a rectangle with a perimeter of 32 if its length is two larger than its width. Round to the nearest tenth if necessary.
How? Help please.
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09/18/17

Find an nth degree polynomial function with real coefficients satisfying the given conditions.
n = 3   -4 and 5 + 5i are zeros   f(-1) = 183   Answer  f(x) = (answer goes here) (Type an expression using x as the variable. Simplify your answer.)
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09/17/17

Let n=322​,142​,9de be a​ base-ten numeral with d and e its last two digits.
Let n=322,142,9de be a base-ten numeral with d and e its last two digits. Give all of the choices of the two-digit numbers de for which n is divisible by 12.
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Math Help

09/16/17

twice the difference of x and 3 is greater than the reciprocal of 12
twice the difference of x and 3 is greater than the reciprocal of 12
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Math Help

09/16/17

The quotient of n and 5 is 5 times n
The quotient of n and 5 is 5 times n
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Math Help

09/16/17

I need help solving this problem
Twin brothers, Billy and Bobby, can mow their grandparent's lawn together in 6262 minutes. Billy could mow the lawn by himself in 3030 minutes less time that it would take Bobby. How long would it... more
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Math Help

09/16/17

juans age x is 4 times his age 15 years ago
which equation is the answer A. x=4+15x B. x=4x-15 C. x=4(x-15) D. x=4x+15
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09/15/17

What fraction has Max shortened his time ?
When Max first commenced working it took him 4 hours to make a cabinet, but now it only takes him 2 hours 40 minutes. By what fraction has Max shortened his time?
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09/15/17

What are the 5 numbers that add up to 80 ?
Five consecutive even numbers add up to 80. What is the largest of the five even numbers?
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Math Help

09/15/17

what is the answer of - + -=
it is a maths integer problem 
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Math Help

09/15/17

8-3 to the second power+2+[2+3(5-3)]Divided by4times 10
I'm in 7th grade and this popped up on my homework! Please help!
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Math Help Math Chemistry Algebra

09/14/17

Alcohol Solutions
A nurse needs rubbing alcohol, which is a 70% alcohol solution. However, there is only a 40% alcohol solution and a 90% alcohol solution in stock. How much of each solution should be mixed in order... more
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09/14/17

You wish to invest $900 over one year in two accounts paying 5% and 6% annually. How much should you invest in each to earn $47?
I need help solving this problem.
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Math Help

09/14/17

Mr.Atkinson has 5 1/4 of dry fish food. He will put an equal amount of food into 3 containers. How much fish food will be in each container?
Technically since it says of would we multiply ? It's a possiblilty & divide since it says equally
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Math Help Math Calculus

09/14/17

Calculus question
A population of bacteria, growing exponentially, quadruples its number in four hours. How long does it take for the number of bacteria to be 1.5 times of the original number?
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Math Help

09/14/17

Suppose you buy 3 beads for $0.16 each. You pay for it with 4 quarters. How much change should you get back? Enter your answer.
Suppose you buy 3 beads for $0.16 each. You pay for it with 4 quarters. How much change should you get back? Enter your answer.
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