3 years ago

Is the square root of 87 rational of irrational?

Mathematics

1 answer:

fgiga [73]3 years ago

7 0

No its irrational.The answer its irrational.

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lidiya [134]

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3 years ago

Simplify the following expression 5^2-4/5+2

oee [108]

If <span>(5^2-4) / (5+2) then
=(25 - 4 )/3
= 21/3
= 7

if 4/5 fraction then
</span><span>5^2-4/5+2
= 25 - 4/5 + 2
= 27 - 4/5
= 26 5/5 - 4/5
= 26 1/5
= 26.2</span>

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3 years ago

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Help please!! it’s due today and this is the one answer i still need!! (view picture)

matrenka [14]

Answer: q=0.3p-2

Well everytime P goes up by one then Q goes up by positive 0.3

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3 years ago

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What is the area of a sector with a central angle of (2pi/3) radians and a diameter of 12 in?

Stels [109]

Answer:

The area of the sector is $37.68\ in^{2}$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=12/2=6\ in$ ----> the radius is half the diameter

substitute

$A=(3.14)(6)^{2}$

$A=113.04\ in^{2}$

step 2

Find the area of a sector with a central angle of (2pi/3)

Remember that

The area of $113.04\ in^{2}$ subtends a central angle of $2\pi \ radians$

by proportion

Let

x----> the area of the sector

$\frac{2\pi}{113.04}=\frac{(2\pi/3)}{x}\\ \\x=113.04*(2\pi/3)/(2\pi)\\ \\x=37.68\ in^{2}$

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3 years ago

Help please!! i just need to the answer

Inga [223]

Answer:

2nd option

l= 55/60 ( 12 pi)

7 0

3 years ago