3 years ago

Select all the correct answers. Which expressions are equivalent to this exponential expression?

Mathematics

1 answer:

Furkat [3]3 years ago

3 0

Answer:

(-2^2)^-6 / (2^-5)^-4 ---> 2^-32

(2^2)^2 x (2^3)^-3 ---> 2^-5

2^4 x (2^2)^-2 ---> 1

(-2^-4)^-2 x (2^2)^0 ---> 2^8

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Mademuasel [1]

Answer:

23 m

Step-by-step explanation:

It is assumed the width of the street is the distance between the opposite buildings.

See the picture attached

It comprises of two parts:

x and y

Using Pythagorean theorem, lets find the value of x:

x² + 15² = 17²
x² = 289 - 225
x² = 64
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Same rule for y:

y² + 8² = 17²
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djverab [1.8K]

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4 years ago

What equation is the inverse of y=2x^2-8?

Fynjy0 [20]

Step-by-step explanation:

To get the inverse, swap the x- and y-variables, then solve for y. We should have the equation: $x = 2y^2 - 8$

Solving for y:

$y = 2x^{2} - 8$ because $y + 8 = 2x^{2}$ or $x =\sqrt\frac{y + 8}{2}$

So on interchanging the variable, we get the equation:

$x = 2y^2 - 8$

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3 years ago

A boardwalk game of chance costs $1 to play. You have a 25% chance of winning $1 back, a 20% chance of winning $2

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Answer:

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Step-by-step explanation:

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2 years ago

Write an equation of the line that is perpendicular to the line y = 2x + 8, and which passes through the point (6,-2).

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The answer should be y=-1/2x-14 :)

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3 years ago