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Tom [10]
3 years ago
14

Which of the ratios below is equivalent to 2:3? Select all that apply.

Mathematics
1 answer:
nalin [4]3 years ago
5 0

Answer:

Your answers are B, C, and E.

Step-by-step explanation:

They are all equivalent to 2:3.

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What is the circumference
Stolb23 [73]
There are two (equivalent) formulas for the circumference of a circle:

C = 2 pi r, where r is the radius of the circle

C = pi d, where d is the diameter of the circle

In this particular problem, however, we're dealing with arc length.  For the shown central angle "theta" = 160 degrees, the arc length is 42 cm.
Knowing this enables us to calculate the radius or diameter of the circle.

Arc length = s = (radius) (central angle, in radians, not degrees)

First, convert 160 degrees to radians:  160 deg     pi rad
                                                              ----------- * ------------ = (8/9) pi rad
                                                                    1         180 deg

Then 42 cm =  r *(8/9) pi rad

Solve for the radius (r):  divide 42 cm by (8/9) pi rad

Then use the formula for circumference introduced earlier:

C= 2 pi r                   Substitute [42 cm / ( (8/9) pi rad )] for r.

Simplify your result, and you will then have the circumference, C, in cm.
6 0
3 years ago
What is 11.16 times 3.27??
kirill115 [55]
11.16 times 3.27 is 36.4932
3 0
3 years ago
50 POINTS
egoroff_w [7]

Answer:

D

Step-by-step explanation:

Factor x^2+2x-8

(x-2)(x+4) = 0

Solve for x

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x = -4

6 0
3 years ago
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Pythagorean Theorem
tatiyna
The answer is 10.6 :)
8 0
1 year ago
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$46.80 x 12?<br> im accually confused
777dan777 [17]

Answer:

$561.6

Step-by-step explanation:

You are basically multiplying 46.80 twelve times.

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2 years ago
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