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

Mathematics

1 answer:

iren [92.7K]2 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 <em>Shift</em> or <em>2nd</em> 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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