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almond37 [142]
3 years ago
14

Evaluate and simplify sin (-15º).

Mathematics
1 answer:
olga55 [171]3 years ago
7 0
Note:

sin(-θ) = -sinθ

sin(-15°) = -sin15°              Use a calculator

sin(-15°) = -sin15°  = -0.2588

sin(-15°) = -0.2588
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If a circle has a diameter of 4 inches, what is the area?
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The formula for area of a circle is π × radius^2, and to find the radius we can just divided the diameter by 2 and get 2 inches. You don't need to use a calculator here, because π is approximately equal to 3.14, so 3.14 × 2^2 = 12.56, which is answer B. I hope this helps!
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Don’t answer if you don’t know !!
DochEvi [55]

Answer:

72 sides

Step-by-step explanation:

The sum of the angles of a polygon with n sides is (n−2) × 180

Since the polygon is regular, we can divide by the number of sides to find the measure of each angle (n−2) × 180 / n

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Divide each side by -5

-360/-5 =-5n/-5

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Find an equivalent fraction for the decimal number. In your final answer, include all of your work.
nataly862011 [7]
66/100 or simplified = 33/50
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Translate the product of 40 and distance to the finish line
tamaranim1 [39]
Well, it says translate the product of 40 and DISTANCE to the finish line right?
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Question is in picture posted but this needs 20 characters so here ya go
Katyanochek1 [597]

Answer:

A

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The dilation with the center of dilation at the origin and scale factor of 4 has the rule

(x,y)→(4x,4y).

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B'(8,4) - option C

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