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3 years ago

What is the percentage of 231 out of 1000

1 answer:

7 0

All you have to do is 1000 divide 231
You will get the answer 0.231
Than you move the decimal point 2 times to the right

So the percentage is 23.1%

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Factor the GCF: −12x4y − 9x3y2 + 3x2y3 (5 points)

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$-12x4y - 9x3y^2 + 3x^2y^3 = 3xy(-16 -9y + xy^2)$

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3 years ago

Find another name for the given number but with the denominator indicated use multiplying by 1. 1/2 = ?/10

liq [111]

5/10 because it is equivalent to 1/2

So the answer is 5/10

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Derive the formula for the area of a sector, and then use it to choose all that are correct.

Marina CMI [18]

Answer:

Part A) $A_s=\frac{\pi r^{2}}{360^o}{\theta}$

Part B) option 1,option 4

Step-by-step explanation:

Part A) Derive the formula for the area of a sector

we know that

The area of circle is equal to

$A=\pi r^{2}$

The area of circle subtends a central angle of 360 degrees

using proportion

Find out the area of a sector $A_s$ by a central angle of ∅ degrees

$\frac{\pi r^{2}}{360^o}=\frac{A_s}{\theta}$

$A_s=\frac{\pi r^{2}}{360^o}{\theta}$

Part B) Verify each case

case 1) we have

radius = 5 cm

angle = 120°

area = 26.2 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(5)^{2}}{360^o}{120^o}$

$A_s=26.2\ cm^2$

The given value of area is correct

case 2) we have

radius = 4 cm

angle = 105°

area = 16.7 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(4)^{2}}{360^o}{105^o}$

$A_s=14.7\ cm^2$

The given value of area is not correct

case 3) we have

radius = 6 cm

angle = 85°

area = 23.7 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(6)^{2}}{360^o}{85^o}$

$A_s=26.7\ cm^2$

The given value of area is not correct

case 4) we have

radius = 7

angle = 75°

area = 32.1 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(7)^{2}}{360^o}{75^o}$

$A_s=32.1\ cm^2$

The given value of area is correct

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3 years ago

What is 3 groups of 6

Kruka [31]

3 x 6 = 18

So your answer is 18

3 0

3 years ago

What is the y-intercept of the graph of 4y = 2x + 8? 4 2 6 00 N

Jet001 [13]

Answer:

Step-by-step explanation:

4y = 2x + 8

First get the equation in slope intercept form y= mx+b where m is the slope and b is the y intercept

Divide each side by 4

4y/4 = 2x/4 +8/4

y = 1/2x +2

The slope is 1/2 and the y intercept is 2

8 0

3 years ago

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What is the percentage of 231 out of 1000​

What is the percentage of 231 out of 1000