Evaluate the following expression. (xy) 0

Mathematics

2 answers:

ELEN [110]3 years ago

5 0

This question is missing ^, so the answer would be 1

Virty [35]3 years ago

3 0

If I am reading this equation right the answer would just be 0 because anything times zero is zero

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2. Find the value of x in the triangle. Round your answer to the nearest tenth of a degree. Show your work.

yarga [219]

Answer:

$\displaystyle 61,9° ≈ x$

Step-by-step explanation:

We have to determine which trigonometric ratio to use, depending on what is displayed for us, and we will be using the cotangent [or tangent] ratio, however, aside we are solving for an angle measure, we must use the inverse:

$\displaystyle cot^{-1}\: \frac{8}{15} ≈ 61,92751306° ≈ 61,9° \\ \\ OR \\ \\ tan{-1}\: 1\frac{7}{8} ≈ 61,92751306° ≈ 61,9°$

Extended Information on Trigonometric Ratios

$\displaystyle \frac{OPPOSITE}{HYPOTENUSE} = sin\:θ \\ \frac{ADJACENT}{HYPOTENUSE} = cos\:θ \\ \frac{OPPOSITE}{ADJACENT} = tan\:θ \\ \frac{HYPOTENUSE}{ADJACENT} = sec\:θ \\ \frac{HYPOTENUSE}{OPPOSITE} = csc\:θ \\ \frac{ADJACENT}{OPPOSITE} = cot\:θ$