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3 years ago

How would i solve this porportion problem. #20

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

8 0

Well you would cross multiple 36x4 which is 144 then you would divide that by 16 which would be 9 and 9 is d

Vikentia [17]3 years ago

7 0

#20 16/36 = 4/d 4 x 36 = 144/16= 9 d=9 #24 144/40 = x/5 144 x 5/40=18 x=18

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HELP DUE IN 10 MINS!

Scilla [17]

Answer:

$\checkmark \text{B. The area of the circle is } 729\pi,\\\checkmark \text{D. The arc length of the sector is } 12\pi$

Step-by-step explanation:

Area of a circle with radius $r$ : $r^2\pi$

Circumference of a sector with radius $r$ : $2r\pi$

Area of sector with angle $\theta$ : $r^2\pi\cdot \frac{\theta}{360}$ .

Arc length of sector with angle $\theta$ : $2r\pi\cdot \frac{\theta}{360}$

Using these equations, we get the following information:

Area of circle: $27^2\pi=729\pi$

Circumference of a circle: $2\cdot 27\cdot \pi=54\pi$

Area of sector: $27^2\pi\cdot \frac{80}{360}=162\pi$

Arc length of sector: $2\cdot 27\cdot \pi \cdot \frac{80}{360}=12\pi$

3 0

3 years ago

A stereo was originally priced at 75.50. it was marked down 24%. a store had a big sale of 60% off the lowest marked price. what

leva [86]

Answer:

We can calculate the price with both sales by multiplying the 75.5 units of money by both percentages (to multiply them, we divide them by 100 first):

75.5 * 0.24 * 0.6 $\approx.$ 10.8

3 0

3 years ago

Which of the following is the solution to the equation below?

nasty-shy [4]

Answer:

Step-by-step explanation:

2x = 6+14

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x = 10

8 0

2 years ago

F(x) 3x^2+x-3 g(x)=x^2-5x+1 find f(x)-g(x)

wel

Answer:

2x² + 6x - 4

Step-by-step explanation:

f(x) - g(x)

= 3x² + x - 3 - (x² - 5x + 1) ← distribute

= 3x² + x - 3 - x² + 5x - 1 ← collect like terms

= 2x² + 6x - 4

5 0

3 years ago

Read 2 more answers

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Pepsi [2]

Answer:

3 hours

Step-by-step explanation:

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3 years ago