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andrey2020 [161]
3 years ago
12

Evaluate the expression, 12w - 5 if w = 4* (2 Points) Enter your answer

Mathematics
1 answer:
Naddika [18.5K]3 years ago
4 0

Answer:

43

Step-by-step explanation:

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Answer:

I Dont understand

Step-by-step explanation:

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Answer:

- 2n + 1 = 3n + 6 \\  - 2n - 3n =  - 1 + 6 \\  - 5n = 5 \\ n =  \frac{5}{ - 5}  \\ n =  - 1

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Complete the st
Zina [86]

Question:

If cos(θ) =-8/17 and sin(θ) is negative, then sin(θ) = ___  and tan(θ) =___.

Answer:

Sin\theta = \frac{-15}{17}

Tan\theta = \frac{15}{8}

Step-by-step explanation:

Given

cos(θ) =-8/17

Required

sin(θ) = __

tan(θ) =__

The first step is to determine the length of the third side

Given that

cos(\theta) = \frac{Adj}{Hyp}

Where Adj and Hyp represent Adjacent and Hypotenuse

cos(\theta) = \frac{-8}{17}

By comparison

Adj = -8\ and\ Hyp = 17

Using Pythagoras

Hyp^2 = Adj^2 + Opp^2

By Substitution

17^2 = (-8)^2 + Opp^2

289 = 64 + Opp^2

Subtract 64 from both sides

289 - 64 = 64 - 64 + Opp^2

225 = Opp^2

Take square roots of both sides

\sqrt{225} = \sqrt{Opp^2}

\sqrt{225} = Opp

15 = Opp

Opp = 15

The question says that sin(θ) is negative; This implies that θ is in the third quadrant and as such

Opp = -15

From trigonometry

Sin\theta = \frac{Opp}{Hyp}

Sin\theta = \frac{-15}{17}

Also from trigonometry

Tan\theta = Sin\theta / Cos\theta

Tan\theta = \frac{-15}{17} / \frac{-8}{17}

Tan\theta = \frac{-15}{17} * \frac{-17}{8}

Tan\theta = \frac{-15 * -17}{17  * 8}

Tan\theta = \frac{15 * 17}{17  * 8}

Tan\theta = \frac{15}{8}

5 0
3 years ago
What's the solution to he inequality ?
Dovator [93]
The correct answer is B x > -3 cause we are solving for x! Hope this helps! :D
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There is a zombie outbreak in a city that infects 10 people right away. Each of the 10 zombies are able to infect 2 people every
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Hello

The answer is:50

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Have a nice day

6 0
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