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3 years ago

Simplify. could i get an explanation too? PLEASE HELP. DUE SOON

Mathematics

1 answer:

dedylja [7]3 years ago

6 0

The answer is
$\frac{27}{4{x}^{6} {y}^{8} }$

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x-8 $\geq$ 17
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Car is traveling 40 mph how long will it take to go190mile

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4 years ago

Gnostic Test

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3 years ago

Find y if x=2 : a. y=7-(x) b. y= x to the power of 2 minus 1. c. y= x+14 cubed

steposvetlana [31]

Answer:

Step-by-step explanation:

y = 7 - x

y = 7 - 2

y = 5

y = x^2 - 1

y = (2)^2 - 1

y = 2*2 - 1

y = 4 - 1

y = 3

y = x + 14

I'm going to assume that you mean (x + 14)^3

y = (x + 14)^3

y = (2 + 14)^3

y = 16^3

y = 4096

If you really do mean what it says, then

y = 2 + 14^3

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5 0

3 years ago

The number of Apple iPods sold in 2009 was 54.13 million. That number decreased approximately linearly to 26.38 million iPods so

AleksandrR [38]

Answer:

$A(t) = -6.9375t + 81.88$ is the amount, in millions, for the number of Apple iPods sold in t years after 2005.

Step-by-step explanation:

Linear function:

A linear function has the following function:

$y = mx + b$

In which m is the slope(the value that y changes by when x changes by 1) and b is the y-intercept(the initial value of the output).

Finding the value in 2005:

This is b.

The number of Apple iPods sold in 2009 was 54.13 million. That number decreased approximately linearly to 26.38 million iPods sold in 2013.

So in 4 years, it decreased from 54.13 - 26.38 = 27.75 million.

So the value in 2005 should also be 27.75 million more than in 2009, that is 54.13 + 27.75 = 81.88. So

$y = mx + 81.88$

Using A for y and t for x

$A(t) = mt + 81.88$

Finding the slope:

When we have two points, the slope is given by the change in the output divided by the change in the input.

In 4 years, the amount decrease by 27.75 million. So

$m = -\frac{27.75}{4} = -6.9375$

$A(t) = -6.9375t + 81.88$ is the amount, in millions, for the number of Apple iPods sold in t years after 2005.

6 0

3 years ago