4 years ago

If four times a certain number, increased by 6 is equal to 49, what is the number

Mathematics

1 answer:

Studentka2010 [4]4 years ago

6 0

Answer:

Step-by-step explanation:

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A circle has a radius of 5 in. A central angle that measures 150° cuts off an arc.

Slav-nsk [51]

Answer:

Part 1) The exact value of the arc length is $\frac{25}{6}\pi \ in$

Part 2) The approximate value of the arc length is $13.1\ in$

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

$\frac{25}{6}(3.14)=13.1\ in$

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The difference between 9 thirty-seven and 8 thirty sevens

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937-837= ?

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Gamal spent $12.50 at the book store. The difference between the amount he spent at the video game store and the amount he spent

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The equivalent equation is d=17+12.5
it simplifies to d=29.5

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