11/07/17

How old is each person?

Mrs. West is 14 years younger than her aunt. If Mrs. West's age in years is as much below 60 as her aunt's age is over 40, how old is each?

10/20/17

jack traveled 5 miles plus 3 times as many as janice. he traveled 30 miles in all. how far did janice travel?

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10/20/17

What is the angle in radians between the vectors

What is the angle in radians between the vectors?   a= (-2, -2, 3) and b = (-4, 0, 7)   angle?

10/20/17

find a.b if a=(-1, 5, 5) and b= (-6, 8, 7)

find a.b if a=(-1, 5, 5) and b= (-6, 8, 7)

10/20/17

find a.b if a=|10| and b=|2| , and the angle between a and b is -pi/3 radians.

find a.b if a=|10| and b=|2| , and the angle between a and b is -pi/3 radians.

10/20/17

Let \mathbf a = (-2, -7, -1)

Let a = (-2, -7, -1)   |a|=

a square of uniform size is cut from each corner of a piece of cardboard that is 20 by 30. Your job is to make a box with the largest possible volume.

What should the length of the square be (rounded to two decimal places) to give you the maximum volume?

A 45 mg of a vaccine is given to a patient to prevent measles. The vaccine leaves the body at a rate of 4.6% per hour.

Use your graphing calculator to determine how many hours passed before there were only 5mg of the vaccine remaining in the body.

10/20/17

Metric System

Find the miles per second traveled if 90 miles in 3 hours. Round to 5 decimal places if necessary

10/20/17

The vertex of a parabola is 1,2,-20) and it’s y-intercept is (0,-12)

Find the equation  

10/20/17

Express the polynomial as a product of linear factors.

f(x) = 2x^3 + 4x^2 - 2x - 4

10/20/17

Amy has $12.00 in dimes and quarters. She has six more quarters than dimes. How many dimes does Amy have?

This is a math pre alge promblem

10/20/17

Without using a calculator, determine the number of real zeros of the function f(x) = x^3 + 4x^2 + x − 6.

 i been trying to do the problem forever i cant get the correct answer someone please help me with this

the area decreased by 7 is 14

Write an equation. For the Phrase

10/19/17

Fraction word problem

Amanda used 1/3 cup of milk each time she makes a batch of pancakes. How many batches can she make if she has only 11/12 cup of milk left?

Solve the equation on the interval 0 less than or equals theta less than 2 pi 0≤θ<2π. 2 cosine theta plus 1 equals 0 2cosθ+1=0

Solve the equation on the interval 0 less than or equals theta less than 2 pi0≤θ<2π.2 cosine theta plus 1 equals 02cosθ+1=0

10/19/17

If you have the base of a triangle and the area how do you find the height

i need to find the triangles height 

10/18/17

why is 2 * n * (n - 1) equal to 2 * n^2 - 2 * n

I am learning algorithm efficiency in computer data structures class. I just can't remember how some of these equations are equated. An answer and explanation for each step in the multiplication... more

10/12/17

Find the length and width

The length of a rectangle is 8 inches more than the width. The perimeter is 40inches. Find the length and the width of the rectangle

10/12/17

find dy/dx sin^2 y=y+2

this is an implicit differiation problem 

10/05/17

Find a third degree polynomial p(x) that has zeros at x=2, x= -4, and x=7, and whose x-term has the coefficient 2.

Find a third degree polynomial p(x) that has zeros at x=2, x= -4, and x=7, and whose x-term has the coefficient 2. Explain please

10/05/17

Height equation

A clown is standing on a cliff that is 528 ft tall. The clown hurls a tomato into the air with a velocity of 128ft/sec. How fast is the tomato traveling when it hits the ground below?   I know... more

4 hr upstream then 2 hr downstream. speed upstream was 12 mph slower than his speed downstream. If traveled a total of 48 ​mi how fast was traveled​ downstream?

I am in math 065 and have tried figuring out this problem for days. Please help. The assignment is due tomorrow.

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