2 years ago

I need help someone solve

Mathematics

2 answers:

ohaa [14]2 years ago

8 0

Answer: what is your question?

Step-by-step explanation:

lozanna [386]2 years ago

5 0

Answer:

What is ur question I'll help

Step-by-step explanation:

But can u pls mark me brainliest

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Need help with this problem.

tigry1 [53]

Answer:

C) $-\frac{47}{49}$

Step-by-step explanation:

By the cos double angle formula, we know $\cos(2\theta)=2\cos^2\theta-1.$ Substituting $\cos \theta$ into the formula, we get

$\cos(2\theta)=2(-\frac{1}{7})^2-1\\~~~~~~~~~~=\frac{2}{49}-1\\~~~~~~~~~~=\boxed{-\frac{47}{49}}$ .

The answer is C.

5 0

2 years ago

Brainliest to the answer. please help !

11111nata11111 [884]

The answer is C because when you rotate 90 degrees clockwise (x,y) becomes (y,-x)

6 0

2 years ago

Show answer in lowest terms. 3 1 /4 - 1 3/16=

SpyIntel [72]

3 - 1 = 2
1/4 - 3/16 = 4/16 - 3/16 = 1/16

answer is : 2 1/16 (in mixed number) or 33/16 (in improper fraction)

4 0

3 years ago

HELPP!!!!!

Alja [10]

Answer:

choice b

Step-by-step explanation:

3.49

____ = 0.1396 ≈ 0.14 or 14 cents per ounce

4.79

____ = 0.10644444 ≈ 0.11 or 11 cents per ounce

3 0

2 years ago

In a certain country, the heights and depths of a road are measured in relation to sea level. Sea level has a value of 0. The lo

Bumek [7]

What are the answers?

4 0

2 years ago