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3 years ago

PLEASE HELP FAST!!! 30 POINTS

Mathematics

1 answer:

vlabodo [156]3 years ago

3 0

Answer:

Slope: 1/2

Explanation: Slope=rise/run

Y-Intercept: 4

Explanation: Y-intercept is the Y value where X=0

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What is the sum of 7 2/6 + 2 1/4

vovikov84 [41]

Answer:

115/12

Step-by-step explanation:

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3 years ago

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(2x2 – 18)(x+3)(2 – 3) = 2x4 – 36x2 + 162

lubasha [3.4K]

Answer:

X=4

Step-by-step explanation:

I'm took lazy to explain it step by step sorry, but I'm positive that's the correct answer.

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3 years ago

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HELP THIS IS FOR TODAY HELP!!!! THANK YOU TO WHOEVER ANSWER'S

Rzqust [24]

Answer:

9,000 feet per minute

Step-by-step explanation:

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3 years ago

The angle θ 1 is located in Quadrant IV, and cos ⁡ ( θ 1 ) = 9/ 19 , theta, start subscript, 1, end subscript, right parenthesis

Firdavs [7]

Answer:

$sin\theta_1 = - \frac{2\sqrt{70}}{19}$

Step-by-step explanation:

We are given that $\theta_1$ is in <em>fourth</em> quadrant.

$cos\theta_1$ is always positive in 4th quadrant and

$sin\theta_1$ is always negative in 4th quadrant.

Also, we know the following identity about $sin\theta$ and $cos\theta$ :

$sin^2\theta + cos^2\theta = 1$

Using \theta_1 in place of \theta:

$sin^2\theta_1 + cos^2\theta_1 = 1$

We are given that $cos\theta_1 = \frac{9}{19}$

$\Rightarrow sin^2\theta_1 + \dfrac{9^2}{19^2} = 1\\\Rightarrow sin^2\theta_1 = 1 - \dfrac{81}{361}\\\Rightarrow sin^2\theta_1 = \dfrac{361-81}{361}\\\Rightarrow sin^2\theta_1 = \dfrac{280}{361}\\\Rightarrow sin\theta_1 = \sqrt{\dfrac{280}{361}}\\\Rightarrow sin\theta_1 = +\dfrac{2\sqrt{70}}{19}, -\dfrac{2\sqrt{70}}{19}$

$\theta_1$ is in <em>4th quadrant </em>so $sin\theta_1$ is negative.

So, value of $sin\theta_1 = - \frac{2\sqrt{70}}{19}$

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3 years ago

How do u know if a like is linear?

Sever21 [200]

Answer:

Step-by-step explanation:

Linear means strait but what are you asking ?

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4 years ago