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PSYCHO15rus [73]
3 years ago
8

Will get lots of points!! Thank you!! Trigonometry

Mathematics
1 answer:
katrin2010 [14]3 years ago
7 0

Answer:

Angle B =  75 degrees

AC =  35.7

BC =  9.6

Step-by-step explanation:

Angle A = 15 degrees (given)

Angle C = 90 degrees (given)

c = 37 (given)

Angle B = 90-15 = 75 degrees

AC = AB cos(A) = 37 cos(15) = 35.7

BC = AB sin(A) = 37 sin(15) = 9.6

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3 years ago
If u = 2i - j; v= -5i + 4j and w = j find 4u (v -w).
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Answer:

-40

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Given

u = 2i - j; v= -5i + 4j and w = j

Required

4u(v-w)

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5 0
1 year ago
Is this true or false need answer asap
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Answer: True

Step-by-Step Explanation:

=> 2x + 3y = -7 (Eq. 1)
=> -x = 2y (Eq. 2)
=> x = 1, y = -3

Substitute values of ‘x’ and ‘y’ in Eq. 1 :-

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=> LHS = RHS

Therefore, it is a Solution.
3 0
2 years ago
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