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Lemur [1.5K]
3 years ago
9

Rewrite each expression using distributive property 24-9 15+42 81-15

Mathematics
1 answer:
Orlov [11]3 years ago
4 0

Answer:

Step-by-step explanation:

you want to use PEMDAS which is parenthesis exponents multiplication division addition subtraction and work your way from left to right. so 15+42=57 and then 24-9=15 and 81-15=66 hope this helped :)

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Step-by-step explanation:

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Given sin A = 12/13 and that angle A is in Quadrant 1,
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We have been given that \text{sin}(A)=\frac{12}{13} and angle A is in quadrant 1. We are asked to find the exact value of \text{cot}(A) in simplest radical form.

We know that sine relates opposite side of right triangle with hypotenuse.

\text{sin}=\frac{\text{Opposite}}{\text{Hypotenuse}}

This means that opposite side is 12 units and hypotenuse is 13 units.

We know that cotangent relates adjacent side of right triangle with adjacent side.

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Now we will find adjacent side using Pythagoras theorem as:

\text{Adjacent}^2=\text{Hypotenuse}^2-\text{Oppoiste}^2

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Let us take positive square root on both sides:

\sqrt{\text{Adjacent}^2}=\sqrt{25}  

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Therefore, adjacent side of angle A is 5 units.

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Therefore, the exact value of cot A is \frac{5}{12}.

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Step-by-step explanation:

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