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sleet_krkn [62]
2 years ago
6

URGENT

Mathematics
1 answer:
Nastasia [14]2 years ago
8 0

Answer:

x45

Step-by-step explanation:

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whatt is that the question

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Find f(-3) if f(x) = x^2. <br> -9 <br> -6 <br> 6 <br> 9<br><br> It's not -6!!
mezya [45]
F(-3) = (-3)²
= -3 * -3
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Jeremy has 50 ft of fencing to enclose a rectangular-pen for his dog. He plans on using a side of his house for one side of the
kotykmax [81]

The dimensions such as length is 18 and width is 16 or length is 32 and width is 9 will produce an enclosed area of 288ft.

<h3>What is the dimension of length and width?</h3>

We know that,

P = l + 2w

50 = l + 2w

50 - 2w = l

A = l x w

288 = (50 - 2w)w

288 = 50w -2w²

2w² - 50w + 288

By dividing throughout by 2

w² - 25w + 144

This is in quadratic equation form.

By applying quadratic formula,

w = (-(-25) ± \sqrt{(-25)^{2}-4*1*144) / 2

w = (-(-25) ± 7)/2

w1 =  (-(-25) + 7)/2

w1 = (25 + 7) / 2

w1 = 16

w2 =  (-(-25) - 7)/2

w2 = (25 - 7) / 2

w2 = 9

By substituting the values in eq1,

A = l x w

if w = 16

288 = l x 16

l = 288/16

l = 18

if w = 9

288 = l x 9

l = 288/9

l = 32

The dimensions will be length is 18 and width is 16 or length is 32 and width is 9.

To learn more about area of rectangle refer to :

brainly.com/question/25292087

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11 months ago
2895÷229=<br> PLZ RIGHT WITH WHOLE NUMBER AND REMANDER<br> ---<br> R:
Eduardwww [97]

Answer:

12 R 147

Step-by-step explanation:

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