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balandron [24]
2 years ago
5

For positive acute angles A and B, it is known that cos A = 4/5 and tan B =5/12 Find the value of cos(A + B) in simplest form.

Mathematics
1 answer:
lys-0071 [83]2 years ago
5 0

Answer:

33/16

Step-by-step explanation:

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Step-by-step explanation:

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Order least to greatest 52%, 0.57, and 2/5
Inessa [10]
Simple...

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4 0
3 years ago
Can you help me on B and C! plz help me
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The value of the expression
r-ruslan [8.4K]

Answer:

f(5) = 75

Step-by-step explanation:

The function is f(x) = 2x^2 + x(100 - 15x).

Evaluate this function at x = 5:  replace each instance of x with 5:

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Order of operations rules require evaluating the expression enclosed in parentheses first.  We get:

f(5) = 2(5)^2 + 5(100 - 15·5)

      = 50       + (100 - 75), so that:

f(5) = 50 + 25 = 75

f(5) = 75

7 0
2 years ago
Read 2 more answers
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