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3 years ago

Eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics

2 answers:

PolarNik [594]3 years ago

8 0

Answer: −42 7/ 8

Step-by-step explanation:

kotykmax [81]3 years ago

5 0

Answer:

-42 7/8

Step-by-step explanation:

1. $7(\frac{-49}{8})$

2. $\frac{-343}{8}$

3. $-42 \frac{7}{8}$

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3 years ago

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1. In ABC, C is a right angle and BC = 11. If B = 30°, find AC. (1 point)

faltersainse [42]

Answer:

$AC=\frac{11\sqrt{3}}{3}$

Step-by-step explanation:

Given that triangle ABC is a right angle triangle. Where angle C is a right angle. Also we have been given that BC = 11, B = 30°. Now we need to find the value of AC.

Apply formula:

$\tan\left(\theta\right)=\frac{opposite}{adjacent}$

$\tan\left(B\right)=\frac{AC}{BC}$

$\tan\left(30^o\right)=\frac{AC}{11}$

$\frac{1}{\sqrt{3}}=\frac{AC}{11}$

$\frac{11}{\sqrt{3}}=AC$

$AC=\frac{11}{\sqrt{3}}$

$AC=\frac{11}{\sqrt{3}}\cdot\frac{\sqrt{3}}{\sqrt{3}}$

$AC=\frac{11\sqrt{3}}{3}$

Hence final answer is $AC=\frac{11\sqrt{3}}{3}$ .

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