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3 years ago

Can someone please help me with numbers 2 and 3?

Mathematics

1 answer:

balandron [24]3 years ago

3 0

Answer

Number 2, your answers are: 9/10 = 90/100, 1/10 = 10/100, 8/10 = 80/100, 5/10 = 50/100. Number 3, 2/10 + 35/100 = 55/100 or in simplified form, 11/20, 9/10 + 6/100 = 96/100, or simplified, 48/50, 1/10 + 89/100 = 99/100, 8/10 + 13/100 = 93/100

Step-by-step explanation:

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Read 2 more answers

What is the area of a sector with a central angle of 8 π/11 radians and a radius of 7.2 ft? use 3.14 for π and round your final

coldgirl [10]

Answer:

$59.19 ft^2$

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

$r=7.2\ ft$

$\pi =3.14$

substitute

$A=(3.14)(7.2)^{2}$

$A=162.78\ ft^2$

step 2

we know that

The area of a circle subtends a central angle of 2π radians

using proportion

Find out the area of a sector with a central angle of 8 π/11 radians

$\frac{162.78}{2\pi }\frac{ft^2}{rad} =\frac{x}{(8\pi/11)}\frac{ft^2}{rad} \\\\x=162.78(8/11)/2\\\\x=59.19\ ft^2$

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4 years ago

Pls help, will mark brainliest

SashulF [63]

Step-by-step explanation:

$\frac{\pi}{2} = 90$

its 1/4 of the circle

circle circumference:

$8 \times \pi$

we need 1/4 of it, so its

$2 \times \pi = 6.28$

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3 years ago