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2 years ago

12

How does the mean and median change from plot 1 to plot 2?

2 answers:

Elena-2011 [213]2 years ago

8 0

Answer:

It’s B maybe not 100%

sure

Step-by-step explanation:

lol tell me if I’m correct

creativ13 [48]2 years ago

4 0

Question:

How does the mean and median change from plot 1 to plot 2?

<em>A.</em><em>The mean and median remain the same. </em>

<em>B.</em><em>The mean decreases, and the median remains the same. </em>

<em>C.</em><em>The mean remains the same, and the median decreases. </em>

<em>D.</em><em>The mean and median decrease.</em>

Answer:

<em>B.</em><em>The mean decreases, and the median remains the same.</em>

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Which of the following functions are solutions of the differential equation y'' + y = 3 sin x? (select all that apply)

DiKsa [7]

Answer:

C

Step-by-step explanation:

We must compute the derivatives and check if the equation is satisfied.

A. $y'=(3\sin x)'=3\cos x$ . Differentiate again to get $y''=(3\cos x)'=-3\sin x$ , then $y''+y=-3\sin x+3\sin x=0\neq 3\sin x$ so this choice of y doesn't solve the equation.

B. $y'=3\sin x+3x\cos x-5\cosx +5x\sin x=(5x+3)\sin x+(3x-5)\cos x$ and $y''=5\sin x+(5x+3)\cos x+3\cos x-(3x-5)\sin x=(10-3x)\sin x+(5x+6)\cos x$ , then $y''+y=10\sin x+6\cos x\neq 3\sin x$ so y is not a solution

C. $y'=\frac{-3}{2}\cos x+\frac{3}{2}x\sin x$ hence $y''=\frac{3}{2}\sin x+\frac{3}{2}\sin x+\frac{3}{2}x\cos x=3\sin x+\frac{3}{2}x\cos x$ . Then $y''+y=3\sin x+\frac{3}{2}x\cos x-\frac{3}{2}x\cos x=3\sin x$ so y is a solution.

D. $y'=-3\sin x$ and $y''=-3\cos x$ , then $y''+y=0$ thus y isn't a solution

E. $y'=\frac{3}{2}\sin x+\frac{3}{2}x\cos x$ hence $y''=\frac{3}{2}\cos x+\frac{3}{2}\cos x-\frac{3}{2}x\sin x=3\cos x-\frac{3}{2}x\cos x$ . Then $y''+y=3\cos x-\frac{3}{2}x\cos x-\frac{3}{2}x\cos x=3\cos x\neq 3\sin x$ then y is not a solution.

3 0

3 years ago

PLEASE HELP ME AND BE CORRECT BEFORE ANSWERING

ddd [48]

Answer:

8 units left , 5 units up

Step-by-step explanation:

4 0

3 years ago

Pls help it’s easy but I been staring at this for 2 hours now pls help a lot of points and will give brainlyest

diamong [38]

Answer:?

I have no idea sir sorry yt ;-;

Step-by-step explanation:

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2 years ago

What is the greatest cThe work that Yi did to find the greatest common factor of 42 and 63 is shown below.

bija089 [108]

Yi forgot two factors of 63, which are 3 and 21.

This would make the greatest common factor 21.

5 0

3 years ago

A manufacturer of computer logic boards is changing to a new model. The amount of time to setup for the new logic boards is

natima [27]

Answer:

1.5 batches take 12.375 hour

Step-by-step explanation:

The first batch takes 10.5 hours, meaning only .5 batches are left. You then take the time that each new full batch takes (4.25) and divide it by 2 as you only need half of one batch. Meaning 0.5 of a batch takes 2.125 hours. You then take the time of the two batches (10.5, and 2.125) and add them, leaving you with 12.625. Meaning 12.375 is the most viable answer.

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2 years ago