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3 years ago

Which of the following is a Prime Number? 9, 5,4

Mathematics

2 answers:

tatiyna3 years ago

6 0

Answer:

Step-by-step explanation:

9 = 1,3,9

5 = 1,5

4 = 1,2,4

Luba_88 [7]3 years ago

5 0

Answer: 5

Explanation: 5 has only two factors they are 1 and 5 this makes it a prime number

I would appreciate brainliest if this was helpful and correct! :)

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3 years ago

(−19, 12), (−9, 1) Find the slope of the line through each pair of points.

Alchen [17]

Answer:

-11/10

Step-by-step explanation:

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3 years ago

Read 2 more answers

You are situated 300 feet from the base of Tower Glitz Plaza watching an external elevator descend down the side of the building

nordsb [41]

Answer:

18.66 ft/s

Step-by-step explanation:

The distance between you and the elevator is given by:

$h=\sqrt{x^2+y^2}$

The rate of change for the distance between you and the elevator is given by:

$\frac{dh}{dt}=\frac{dh}{dy}*\frac{dy}{dt}$

$-16=\frac{dh}{dy}*\frac{dy}{dt}$

$\frac{dh}{dy}=\frac{d}{dy} (\sqrt{x^2+y^2})\\$

Applying the chain rule:

$u=x^2+y^2\\\frac{dh}{dy}=\frac{d\sqrt u}{du} *\frac{du}{dy}\\\frac{dh}{dy}=\frac{1}{2\sqrt u} *2y\\\frac{dh}{dy}=\frac{y}{\sqrt {(x^2+y^2)}}$

Therefore, at x=300 and y = 500, dy/dt is:

$-16=\frac{y}{\sqrt {(x^2+y^2)}}*\frac{dy}{dt}\\-16=\frac{500}{\sqrt {(300^2+500^2)}}*\frac{dy}{dt}\\\frac{dy}{dt}=-18.66\ ft/s$

The elevator is descending at 18.66 ft/s.

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3 years ago

How do I solve this problem?

kondor19780726 [428]

Answer:

Its A

Step-by-step explanation:

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3 years ago

Find g(x), where g(x) is the reflection across the y-axis of f(x)=x.

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3 years ago

Which of the following is a Prime Number? 9, 5,4 ​

Which of the following is a Prime Number? 9, 5,4