3 years ago

(a): How many calories is Ashley burning per? (b): What is the slope of the graph?

Mathematics

1 answer:

torisob [31]3 years ago

8 0

A,) 3 calories per minute because 12 divided by 4 is 3

B.) 12 over 4 or 3 over 1

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Answer:

D: {-1,2,9,-4}

R: {6,0,-3}

Step-by-step explanation:

domain are the x-values

range are the y-values

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2 years ago

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3 years ago

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Answer:

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3 years ago

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Which of the following describes the correct process for solving the equation 3x+6=21 and arrives at the correct solution?

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3 years ago

The dimensions of an iPhone are x – 2 and x + 3. If the area of an iPhone is 14 square inches, find the dimensions of the iPhone

QveST [7]

Answer:

The dimensions of the iphone are 2 inches by 7 inches.

Step-by-step explanation:

Given that,

The dimensions of an iPhone are x – 2 and x + 3.

The area of an iphone is 14 sq inches

We need to find the dimensions of the iPhone. It is in the shape of a rectangle. Its area is given by :

$A=l\times b\\\\(x-2)(x+3)=14\\\\x^2-2x+3x-6=14\\\\x^2+x-6-14=0\\\\x^2+x-20=0\\\\x^2+5x-4x-20=0\\\\x(x+5)-4(x+5)=0\\\\(x-4)(x+5)=0\\\\x=4\ and\ x=-5$

Neglecting negative value

First dimension = (x-2) = (4-2) = 2 inches

Other dimension = (x+3) = (4+3) = 7 inches

Hence, the dimensions of the iphone are 2 inches by 7 inches.

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3 years ago