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anyanavicka [17]
4 years ago
8

What is the value of sin(−θ) ?

Mathematics
1 answer:
Ghella [55]4 years ago
6 0

Answer:

A

Step-by-step explanation:

The cosine of a right triangle is the adjacent over the hypotenuse. If the cosine is -3/5 then it must be a right triangle with sides 3, 4, & 5 since this is a Pythagorean triple. This means the sin will be -4/5. We know its negative because the tangent is positive so this is the 3rd quadrant where both Sine and Cosine are negative.

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a rectangular table is two times as long as it is wide. if the area is 18ft^2, find the length and the width of the table.
Tasya [4]
Start here:  A = 18 ft^2 = L * W.  Next, L = 2W.

Merging these 2 formulas lets us eliminate L:

18 ft^2 = (2W) * (W) = 2W^2.

So W^2 = 9 ft^2, and W=3 ft.  Please use L = 2W (from above) to calculate L.

4 0
3 years ago
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sergij07 [2.7K]

10% of what number is 300?

This means that the number is greater than 300 and in fact 10 times greater. You can create and equation. Let x be the number.

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