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3 years ago

What is the area of a rectangle? Pls help and I will mark brainliest!

Mathematics

1 answer:

Alchen [17]3 years ago

7 0

Answer:

A. 168 units²

Step-by-step explanation:

<u>Find the missing side of the rectangle, use Pythagorean:</u>

b² = 25² - 7² = 576
b = √576 = 24 units

<u>Find area of rectangle:</u>

A = ab
A = 7*24 = 168 units²

Correct choice is A

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Part 2
Since the values of y change drastically for every equal interval of x, the function cannot be linear. Therefore, the kind of function that best suits the given pairs is a quadratic function.

Part 3.
The first equation is $y=x^2+2$ .
The second equation is $y=3x+20$ .

We have
$x^2+2=3x+20$
$x^2-3x-18=0$
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Therefore, the solutions are (6,38) or (-3,11)

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