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08/27/19

Suppose x and y vary together such that y = 2 x + 7 .

Suppose x and y vary together such that y=2x+7.Suppose x varies from x=4 to x=11.5. Over this interval, how much does x change by? Over this interval, how much does y change by? Over this interval,... more

08/26/19

please help me solve this math problem!

the difference of two numbers is 8. five times the smaller number equals the greater number

What is -x squared

08/22/19

Actual time of the bulb is fired.

A flash bulb is located at a distance 30km from an observer. The bulb is fired and the observer sees the bulb at 13:00 hrs. What is actual time that the bulb is fired?

08/22/19

If AB = 18 and AC 3x + 6 then x?

You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price.

You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price.a. Write and solve an equation to find how much you spend on each CD. Let  represent the price... more

08/18/19

Algebra Question

 Suppose a flat rectangular board is built by gluing together a number of square pieces of the same size. If twenty squares are glued together to make a 4x5 rectangular board, how many of these... more

4 x 5 (30 / 6) + 5

So, I have had a debate with a few colleagues of mine. Between us all, we’ve came up with two different answers. 105 & 25 being the answers. VERY IMPORTANT... the “/“ *division* symbol between... more

08/18/19

PHYSICS: a ball is thrown upward in the air, and its height above the ground after t seconds is:

H(t) = 64t - 16t^2 ft find the time t when the ball will be traveling downward at 16ft per second

Solve cos^2x+3cosx+2=0, for cos, then for x.

I do not understand. Please help.

08/17/19

Find the slope and y-intercept

Find the slope and y-intercept of the line given by 5y+2y=-10

08/17/19

sides of a triangle

The perimeter of a triangle is 82 feet. One side of the triangle is 2 times the second side. The third side is 2 feet longer than the second side. Find the length of each side.

08/17/19

math help!!! Please

The cross section of television antenna dish is a parabola and the receiver is located at the focus, 5 feet above the vertex. A. find an equation for the cross section of the dish.( assume the... more

08/17/19

Calculus see below

Suppose f(x) = 2 for all x. What is lim when x is approaching -8 f(x)?

08/16/19

SAT Question: Subtract Gnarly Polynomials

(x2y − 3y2 + 5xy2) − (−x2y + 3xy2 − 3y2)Which of the following is equivalent to the expression above?A) 4x2y2B) 8xy2−6y2C) 2x2y+2xy2D) 2x2y+8xy2−6y2

08/16/19

1more than the square of a number

1

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