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4 years ago

PLEASE HELP WILL GIVE BRAINLIEST

Mathematics

2 answers:

solniwko [45]4 years ago

5 0

All of the following expressions represent the sum of n and itself, except _____.

n², for n² = n x n, not n + n

hope this helps

Alexxandr [17]4 years ago

4 0

N^2.....because this is the product of n and itself, not the sum

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b. not similar

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Lapatulllka [165]

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3 years ago

A central angle of a circle with radius 150 cm cuts off an arc of 200 cm. Find each measure in Exercises 4 and 5.

Harrizon [31]

Answer:

Part 1) The exact value of the arc length is

Part 2) The approximate value of the arc length is

Step-by-step explanation:

step 1

Find the circumference of the circle

The circumference of a circle is equal to

$C=2\pi r$

we have

$r=5$ $in$

substitute

$C=2\pi (5)$

$C=10\pi$ $in$

step 2

Find the exact value of the arc length by a central angle of 150 degrees

Remember that the circumference of a circle subtends a central angle of 360 degrees

by proportion

$\frac{10\pi }{360}=\frac{x}{150}$

$x=10\pi *150/360$

$x=\frac{25}{6} \pi$ $in$

step 3

Find the approximate value of the arc length

To find the approximate value, assume

$\pi =3.14$

substitute

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2 years ago