11/26/18

I don’t understand 6(s-9).
I need help to understand the Distributive Property.
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11/26/18

Billy likes to go cycling.
His bike has wheels of diameter 80 cm.He has invented a counter for his bike, which counts the number of revolutions the wheels make. One day the counter shows 210 revolutions. How far has Billy... more
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11/26/18

Divide with same units!
What the answer when dividing by same units?Eg;1. Units ÷ units2. Currency ÷ currency
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11/26/18

Algebra Factoring
Having a spot of trouble with this one...Need to factor it.y= -2x^2 + 4x + 3
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11/26/18

Algebra 2 Word Problem. Would be grateful for explanation.

You hit a tennis ball straight up into the air with a tennis racket. The ball has an upward velocity of 46 feet per second. The point of contact between the tennis racket and ball is 4 feet above... more
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11/24/18

Math help please
Given the function y = -3ex + 1 , find y if x = 2.
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11/23/18

Find the open​ interval(s) on which the function is increasing and decreasing, and Identify the​ function's local and absolute extreme​ values, if​ any, saying where they occur.
f(x)= e15x + e-x
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11/23/18

a^-1/a=7, find a^4+1/a^4
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11/22/18

Appreciation (Algebra)
An investment of $1500 grows at a rate of 2.8%, compounded annually. The expression 1500(1.028)10 represents the value of the investment after 10 years. Evaluate the expression to determine the... more
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11/21/18

Nearest Whole Dollar

How would I round 10.3439636 to the nearest whole dollar?
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11/20/18

Find f '(−5), if f(x) = (−4x^2 − 2x)(−x^2 − 9).

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11/20/18

Given the cost function C ( x ) = 0.84 x + 62 , 370 and the revenue function R ( x ) = 1.83 x , find the break-even point.
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11/20/18

Is it possible for a perimeter of 231 miles to have an area of 3000
Question about a Forest and shapes and layouts.
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11/20/18

Find the formula for an exponential function
Find the formula for an exponential function that passes through the two points given.(0,7) and (4,16807).
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11/20/18

Write an equation about the movement of a Ferris wheel.
A Ferris whee with a radius of 15m rotates once every 100 seconds. Riders board the Ferris wheel using a platform that is 1 m above the ground.1, draw the graph for two rotations of the Ferris... more
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11/19/18

Pre-Algebra word problem
My daughter recently took a math test and the following question was marked incorrect. Please answer and explain. Thank you.The area of a triangle is 144 square miles. The height is 8 square miles.... more
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11/19/18

Why is the sky blue?
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11/19/18

Identify how many terms.
How many terms would be in (9x-4) + 3.21?
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11/19/18

The sum of two numbers are 60. Find the numbers if their product is a maximum
How come for this question “y=x+60” when using quadratics, and not “x+y=60” since the 2 numbers equal to 60
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11/18/18

Baseball wavelength
A pitcher throws a ball at 60 miles per hour. the batter hits it and sends it flying away from him at 40 miles per hour. Is the deb Broglie wavelength longer before or after the ball is hit and why?
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11/18/18

Why doesn't the government lower the price for healthy food and raise the price for unhealthy food? Wouldn't they save billions in healthcare costs?
For some foods it's a little bit ambiguous if they're healthy or not. But common everyone knows that carrots and spinach are healthy and candy and chips are not. Obesity, vitamin deficiency and a... more
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11/18/18

How many integers are in the following list: 1, 2, 4, 8, ... , 2048?
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11/17/18

what is the quadratic function equation who's vertex is (-5,9) and passes through the point (-7,-15)
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11/17/18

Algebra Transformations
Describe the transformations in the equation y= -4(x-3)^2+7
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11/17/18

You work in a lab and are growing a bacteria culture.

Here is my question of Precalcus question, You work in a lab and are growing a bacteria culture. Your assistant has estimated that the initial number of bacteria is 350. According to your manual,... more
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