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Bond [772]
3 years ago
5

Cos87°cos33° - sin87°sin33°

Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

-\frac{1}{2}

Step-by-step explanation:

cos(87° + 33°) = cos(120°) = -\frac{1}{2}

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AlekseyPX

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The solution to the system of equation is (0 , -2 , 1).

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3 years ago
Apple stock plummets and now you have to decide if you hold onto your stock in the hopes that it goes back up, or sell it at a l
Readme [11.4K]

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$109.52


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8 0
3 years ago
Which of the following reg<br> a geometric sequence?
abruzzese [7]

The geometric sequence is (a) 1/4, 1/4, 1/4, 1/4

<h3>How to determine the geometric sequence?</h3>

As a general rule, a geometric sequence can have a common ratio of 1.

This means that all terms of a geometric sequence can be the same.

So, option (1) can be a geometric sequence

Also, options (II), (III) and (IV) cannot be a geometric sequence because they do not have a common ratio.

Hence, the geometric sequence is (a) 1/4, 1/4, 1/4, 1/4

Read more about geometric sequence at:

brainly.com/question/24643676

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4 0
2 years ago
The area of a square garden is 200 m². How long is the diagonal?
nydimaria [60]
Let s = side length of square, then
200=s^2, or
s=sqrt(200)=sqrt(2*10^2)=10sqrt(2)
The diagonal turns out to be sqrt(s^2+s^2) by the Pythagoras theorem and equals sqrt(2s^2)=s*sqrt(2) = 10sqrt(2)*sqrt(2)=10*2=20.

In general, the diagonal D of a square with area A is given by
D=sqrt(2)*sqrt(A)=sqrt(2A)
In the case given it is Diagonal length = sqrt(2*200)=sqrt(400)=20 (as before)

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3 years ago
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3 years ago
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