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2 years ago

Need help with some inverse trigonometric expressions, rounded to the nearest degree.

Mathematics

1 answer:

rjkz [21]2 years ago

6 0

A Google or Bing search box can be your friend, if you don't have a calculator with inverse trig functions. Most calculators that have trig functions also have the inverse functions, usually after a 2nd or "shift" key. Often, there is a mode setting for degrees or radians.

arcsin(0.33) ≈ 19°
arccos(0.47) ≈ 62°
arctan(1.21) ≈ 50°
arcsin(0.82) ≈ 55°

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Answer:

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3 years ago

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Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

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Answer:

2.62 seconds

Step-by-step explanation:

Let

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we have

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we know that

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in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

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2 years ago

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Yakvenalex [24]

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3 years ago

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