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3 years ago

I need help on #2 I want to know if it’s right

Mathematics

1 answer:

anastassius [24]3 years ago

6 0

I would’ve gone with the same choice so I think it’s right!!

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Use the triangle below to find cos V.

Semenov [28]

Answer:

$cos\ V = \frac{2\sqrt{29}}{29}$

Step-by-step explanation:

Given

The attached triangle

Required

Find cos V

In trigonometry:

$cos\theta = \frac{Adjacent}{Hypotenuse}$

In this case:

$cos V= \frac{TV}{UV}$

Where

$TV = 6$

and

$UV^2 = TV^2 + TU^2$ -- Pythagoras

$UV^2 = 6^2 + 15^2$

$UV^2 = 261$

Take square roots

$UV = \sqrt{261$

$UV = \sqrt{9*29$

$UV = \sqrt{9} *\sqrt{29$

$UV = 3\sqrt{29$

So:

$cos V= \frac{TV}{UV}$

$cos\ V = \frac{6}{3\sqrt{29}}$

$cos\ V = \frac{2}{\sqrt{29}}$

Rationalize:

$cos\ V = \frac{2}{\sqrt{29}}*\frac{\sqrt{29}}{\sqrt{29}}$

$cos\ V = \frac{2\sqrt{29}}{29}$

8 0

2 years ago

Different ways to solve x+4=13

faltersainse [42]

One way is to move the 4 to other side so it would be x = 13 - 4 and that's x = 9

5 0

2 years ago

Work out, giving your answer in its simplest form: <br><br>3 1/2 ÷ 2 3/5

Alecsey [184]

Answer:

this is the ans- 3.36956522

7 0

3 years ago

Write an algebraic expression for the pharse: 5 less than the product of 6 and n

kiruha [24]

6n - 5 is the answer

<h2>YOURE WELCOME, PLEASE MARK AS BRAINLIEST AND FOLLOW ME ❤️❤️</h2>

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2 years ago

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5 scholars ran a marthon each one ran 1\5 of a mile how far did the students run in all

IrinaK [193]

9514 1404 393

Answer:

1 mile

Step-by-step explanation:

5 × (1/5 mi) = 5/5 mi = 1 mi

The students ran 1 mile in all.

3 0

2 years ago