3 years ago

Which choices are real numbers?

Mathematics

1 answer:

Snezhnost [94]3 years ago

8 0

a and c are your answers

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The scale for the drawing of a rectangular playing field is 2 inches = 5 feet.

stira [4]

Answer:

how big is the field supposed to be?

Step-by-step explanation:

6 0

3 years ago

Θ is in Quadrant III and cos^2 0= 1/4

pychu [463]

I think you mean to say $\cos^2\theta=\dfrac14$ . If $\theta$ is in the third quadrant, then $\sin\theta$ and $\cos\theta$ . Recall that

$\sin^2\theta+\cos^2\theta=1\implies\sin\theta=\pm\sqrt{1-\cos^2\theta}$

We expect $\sin\theta$ to be negative, so we take the negative root. We end up with

$\sin\theta=-\sqrt{1-\dfrac14}=-\dfrac{\sqrt3}2$

We also know to expect $\cos\theta$ , so

$\cos\theta=\pm\sqrt{\dfrac14}\implies\cos\theta=-\dfrac12$

By definition, we have

$\cot\theta=\dfrac{\cos\theta}{\sin\theta}$

and so

$\cot\theta=\dfrac{-\frac12}{-\frac{\sqrt3}2}=\dfrac1{\sqrt3}$

7 0

3 years ago

HELP PLZ THIS IS DUE TODAY

STatiana [176]

Answer:

A.−3x^4+2x^2−4x

B.4p^7−10p^5+2p^4

Step-by-step explanation:

A.x(−3x^3+2x−4) then simplify −3x^4+2x^2−4x

B. -2p^3(-2p^4+5p^2-p) then simplify 4p^7−10p^5+2p^4

3 0

3 years ago

PLEASE HELP!!!!<br> ILL GIVE YOU BRAINLIEST!!!!!!

olchik [2.2K]

answer:

-6 is the answer I think

7 0

3 years ago

During a 5-year period, 48% of snowstorms in a certain city caused power outages. Thirty dash nine of the snowstorms did not

beks73 [17]

Answer:

Step-by-step explanation:

48% of snowstorms caused power outages, which means 52% did not.

Therefore, 39 is 52% of all snowstorms.

39 = 0.52x

x = 75

There were 75 snowstorms over the 5-year period.

4 0

3 years ago