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2 years ago

PLS HELP! ILL GIVE BRAINLIEST

Mathematics

2 answers:

Elis [28]2 years ago

8 0

Answer:

x = 1/5

Step-by-step explanation:

(2+x) + (2+x) + (2+x) + (2+x) + (2+x) = 11

5(2 + x) = 11

divide each side by 5

2 + x = 11/5

subtract 2 from each side

x = 11/5 - 2

2 = 10/5

x = 11/5 - 10/5

x = 1/5

lubasha [3.4K]2 years ago

4 0

left = right

2.5 + x.5 = 11

10 + 5x = 11

5x = 1

x = 1/5

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Read 2 more answers

1.) A 20° sector in a circle has an area of 21.5π yd².

a_sh-v [17]

Part 1) A 20° sector in a circle has an area of 21.5π yd².

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the area of a circle represent a sector of $360$ degrees

so by proportion

$\frac{21.5\pi }{20} =\frac{x}{360} \\ \\ x*20=360*21.5\pi \\ \\x=(360*21.5*3.14)/20\\ \\x= 1,215.18\ yd^{2}$

therefore

the answer part 1) is

The area of the circle is $1,215.18\ yd^{2}$

Part 2) What is the area of a sector with a central angle of 3π/5 radians and a diameter of 21.2 cm?

we know that

the area of the circle is equal to

$A=\pi r^{2}$

where

r is the radius of the circle

in this problem we have

$Diameter=21.2\ cm\\ r=Diameter/2\\r=21.2/2\\r= 10.6\ cm$

Find the area of the circle

$A=\pi r^{2}$

$A=\pi*10.6^{2}$

$A=352.8104\ cm^{2}$

Find the area of the sector

we know that the area of the circle represent a sector of $2\pi$ radians

by proportion

$\frac{352.8104}{2\pi }=\frac{x}{(3\pi/5)} \\\\x*2\pi=(3\pi*352.8104)/5\\ \\x= 105.84\ cm^{2}$

therefore

the answer part 2) is

the area of the sector is

$105.84\ cm^{2}$

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3 years ago

Which inequality is NOT true when x= -2?

Levart [38]

Answer: D

Step-by-step explanation:

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2 years ago

**PLS HELP! ILL GIVE BRAINLIEST**

PLS HELP! ILL GIVE BRAINLIEST