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alukav5142 [94]
3 years ago
8

Please help with this question

Mathematics
1 answer:
uysha [10]3 years ago
5 0

Answer:

C

Step-by-step explanation:

The difference formula for cosine is

cos(x - y) = cosxcosy + sinxsiny

Consider

cos75 = cos(120 - 45)°, then

cos(120 - 45)°

= cos120°cos45° + sin120°sin45° → C

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Emma buys packets of beads
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Answer:

40beads

Step-by-step explanation:

For this number you are supposed to find the LCM of the three numbers given that is 8,5 and 10

Hope that this helpful.

Have a great day.

7 0
2 years ago
what is the probability of choosing a point inside a cylinder but not inside the cone that has the same base and height as the c
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Help!!!!!
photoshop1234 [79]
<span>c) 45 degrees west of south</span>
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2 years ago
Read 2 more answers
Which problem is equivalent to 12/18
Olenka [21]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
For the function P(x) = x3 − 9x, at the point (2, −10), find the following. (a) the slope of the tangent to the curve (b) the in
Shalnov [3]

Answer:

3, in both a), b)

Step-by-step explanation:

a) The slope of the line tangent to the curve that passes through the point (2,-10) is equal to the derivative of p at x=2.

Using differentiation rules (power rule and sum rule), the derivative of p(x) for any x is p'(x)=3x^2-9. In particular, the value we are looking for is p'(2)=3(2^2)-9=12-9=3.

If you would like to compute the equation of the tangent line, we can use the point-slope equation to get y=3(x-2)-10=3x-16

b) The instantaneus rate of change is also equal to the derivative of P at the point x=2, that is, P'(2). This is equal to p'(2)=3.

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3 years ago
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