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poizon [28]
3 years ago
8

Circle Y has a radius of 22 meters and Circle Z has a radius of 27 meters. Which of the following statements are true? Select al

l that apply.
o The circumference of Circle Y=44π m
o The circumference of Circle Z=27π m
o The circumference of Circle Y is approximately 32 m less than the circumference of Circle Z.
o The circumference of Circle Z is approximately 170 m.
o The circumference of Circle Z is approximately 32 m less than the circumference of Circle Y

Mathematics
1 answer:
kari74 [83]3 years ago
5 0

Answer:

A

C

D

Step-by-step explanation:

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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
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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.

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1 year ago
A television costs $270.25 including 15% tax. How much of cost is the tax
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Step-by-step explanation:

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3 years ago
How do you solve the system:<br> y+1=2x<br> 5y+5=10x
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Answer:

choose "infinitely more solutions"

Step-by-step explanation:

Let's solve this system by substitution method

y+1=2x

- 1 = - 1

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---------------------------------------------------------------------------------

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5(2x -1) + 5 = 10x

10x -5 + 5 = 10x

10x + 0= 10x

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The gradient formula is (y2-y1)/(x2-x1) aka rise/run, where by (x1,y1) and (x2,y2) are two points on the line.

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3 years ago
Peter is the owner of a hotel. He has found that when he charges the nightly cost of $139, the average occupancy is 275. In addi
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Answer:

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