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Vesna [10]
2 years ago
5

Evaluate 4c-3 when c= -2

Mathematics
1 answer:
marin [14]2 years ago
6 0

Answer:

Step-by-step explanation:

4*(-2)-3

-8-3

-11

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There is a clown's face on the top of a spinner. The tip of his hat rotates to (−2, 5) during one spin. What is the cosine value
uranmaximum [27]
Remark
The point value is (-2,5) So we know the two sides. We need the hypotenuse. We should notice that the x value is minus (-2) and value is y value is plus (5). That means we are in quad 2. Be careful how you read that. (-2,5) is a point. It is not a tangent.

Step One 
Find the hypotenuse.

a = - 2
b = 5
c =  ??

c^2 = a^2 + b^2
c^2 = (-2)^2 + 5^2
c^2 = 4 + 25
c^2 = 29               Take the square root of both sides.
sqrt(c^2) = sqrt(29)
c = sqrt(29)

Step Two
Find the Cosine of the angle.
Cosine(theta) = adjacent / hypotenuse
Cosine(theta) = -2 / sqrt(29)  <<<<<<< Answer

Again, watch out for what you are given.
6 0
3 years ago
4,0000000000×10,00000000
Mademuasel [1]

Answer:

yes 40

Step-by-step explanation:

she got it correct

4 0
2 years ago
There is a positive correlation between the number of times the Striped Ground Cricket chirps per second and the temperature in
Svetllana [295]
I think the answer is 85 im not sure
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What is the surface are of the cube below
AnnZ [28]

the answer is simple and easy. why do you ask such question.

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4 0
3 years ago
Read 2 more answers
Please answer this! Thanks!
Leto [7]

[ [13.9] ] - [ [-8.23] ] +[ [7.04+6.7] ]=35.87

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