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3 years ago

Find the value of y. Round your answer to nearest tenth. Please help

Mathematics

1 answer:

iren [92.7K]3 years ago

6 0

9514 1404 393

Answer:

Step-by-step explanation:

The angle whose cosine is 8/13 is found using the inverse cosine function:

y° = arccos(8/13) ≈ 52.0°

y ≈ 52.0

The calculator button to compute this value is probably labeled cos⁻¹. You may need to access the function using a Shift or 2nd key. The calculator must be set to degrees mode to prevent the answer from appearing in radians or grads. If you use a spreadsheet, your formula may look like ...

=DEGREES(ARCCOS(8/13))

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What is −8≥−5x+7≥-33

Anuta_ua [19.1K]

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3 years ago

Which pair of angles is complementary?

NNADVOKAT [17]

Answer:

2 angles are shown one angle is 56 degrees and the other is 34 degrees

Step-by-step exp

complementary angle=90 degree

56+34=90

4 0

3 years ago

The functions f (theta) and g (theta) are sine functions, where f (0) equals g (0) equals 0.The amplitude of f (theta) is twice

777dan777 [17]

If period of $f(\theta)$ is one-half the period of $g(\theta)$ and
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To find the period of sine function $f(\theta)=asin(b\theta+c)$ we use the rule $T_{f}= \frac{2\pi}{b}$ .

f is sine function where f (0)=0, then c=0; with period $\pi$ , then $f(\theta)=asin 2\theta$ , because $T_{f}= \frac{2 \pi }{2} = \pi$ .

To find a we consider the condition $f( \frac{ \pi }{4} )=4$ , from where $asin2* \frac{\pi}{4} =a*sin \frac{ \pi }{2} =a=4$ .

If the amplitude of $f(\theta)$ is twice the amplitude of $g(\theta)$ , then $g(\theta)$ has a product factor twice smaller than $f(\theta)$ and while period of $g(\theta)$ is 2π and g(0)=0, we can write $g(\theta)=2sin\theta$ .

8 0

3 years ago

If the supplement angle is 12 degrees less tan twice the measure of the angle,what is the measure of the angle

pentagon [3]

x = 2(180 - x) - 12

3x = 348

x = 116

The measure of the angle is 116 degrees.

6 0

3 years ago

3) If it takes 3/29 of the coal for the train to go 1 mile, how much of the coal would it take to go 6.3 miles?

nevsk [136]

Answer:

18.9/29 or 65.17% of the coal.

Step-by-step explanation:

3/29 x 6.3 = 18.9/29

18.9/29 = 0.6517 x 100 = 65.17

6 0

3 years ago