2 years ago

Use a calculator to find the angle measure to the nearest degree for cos-1 (0.5) 45 Pts!

Mathematics

2 answers:

umka2103 [35]2 years ago

8 0

Step-by-step explanation:

no calculator req

cos 60 is 0.5

so cos inverse of 0.5 os 60°

Amiraneli [1.4K]2 years ago

6 0

$\\ \tt\hookrightarrow cos^{-1}(0.5)$

$\\ \tt\hookrightarrow cos^{-1}\left(\dfrac{1}{2}\right)$

$\\ \tt\hookrightarrow 60°$

Fact about cosine(cos)

$\\ \tt\hookrightarrow cos\theta=\dfrac{Base}{Hypotenuse}$

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Please help!!

postnew [5]

$2 \frac{5}{8} \div 2 \frac{1}{2}$
Change the mixed fractions to improper fractions.
To do this, multiply the whole number part by the denominator. Add that to the numerator. Then write the result on top of the denominator.

You would now have:
$\frac{21}{8} \div \frac{5}{2}$
Change the division sign to a multiplication sign by turning the second fraction upside down.
That is,
$\frac{21}{8} \times \frac{2}{5}$

The answer is:
$\frac{42}{40}$

This can be simplified to:
$\frac{21}{20}$

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3 years ago

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Vilka [71]

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3 0

3 years ago

Plz answer i will really apreciate it :) 50 points

hoa [83]

Answer:

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Step-by-step explanation: