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ziro4ka [17]
3 years ago
8

Simplify the expression. -2 + 2/5b - 1/4b +6=

Mathematics
1 answer:
OleMash [197]3 years ago
8 0

Answer:

3b/20+4

Step-by-step explanation:

-2 + 2/5b - 1/4b + 6

Combine 2/5b and 1/4b to get 3/20b

-2 + 3/20b + 6

Add −2 and 6 to get 4.

4+3/20b

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Free_Kalibri [48]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Use the unit circle to find the following values.
ahrayia [7]
Where is the circle
7 0
3 years ago
A circle has a radius of 5 in. A central angle that measures 150° cuts off an arc.
marishachu [46]

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:

ind 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

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

3 0
3 years ago
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