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Agata [3.3K]
3 years ago
12

Write the expression as either the sine, cosine, or tangent of a single angle.

Mathematics
1 answer:
Xelga [282]3 years ago
5 0
<span>we know that cos(a - b) = cos(a) cos(b) + sin(a) sin(b)
given a = π/3 and b = π/5
cos(π/3) cos(π/5) + sin(π/3) sin(π/5) = cos((π/3) - (π/5) = cos(2π/15)
hope it helps
</span>
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anzhelika [568]

Answer:

3/5=12/20

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Step-by-step explanation:

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3 years ago
How do you get the answer for .0003 is 1/10 of?
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The accompanying data resulted from an experiment in which weld diameter x and shear strength y (in pounds) were determined for
saul85 [17]

Answer:

y hat = 2114.20 + 18.96x

Step-by-step explanation:

Given the least square regression model equation:

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To express shear strength y in kilogram:

y is multiplied by 0.4536

(y hat × 0.4536) = -959.00 + 8.60x

Divide both sides by 0.4536

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y hat = 2114.1975 + 18.959435x

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7 0
3 years ago
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Gekata [30.6K]

Answer:

He should have moved to the right.

Step-by-step explanation:

Ken moved 7 to the right which is correct because he needs to get 7º higher, but when he moved 2º to the left that would be a temperature decrease which is is incorrect.

7 0
3 years ago
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Ksivusya [100]

Answer:

D, irrational numbers,

Step-by-step explanation:

75 is part of all groups except irrational numbers, it is an integer, a whole number and a natural number..

3 0
2 years ago
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