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3 years ago

6

A baseball is thrown straight up in the air with an initial velocity of 2 m/s. Draw a picture that shows the path of the ball as

it goes up and comes down. Label the initial velocity, the velocity at max. height, and the acceleration of the ball.

1 answer:

adoni [48]3 years ago

6 0

Answer:

e

Step-by-step explanation:

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Find the volume and surface area of this triangular prism. 12 cm 13 cm 18 cm and 5 cm

Ipatiy [6.2K]

⇒ s = a+b+c2=5+12+132 a + b + c 2 = 5 + 12 + 13 2 = 15 cm.
Area of the base = √s(s−a)(s−b)(s−c)
= √15×10×3×2 15 × 10 × 3 × 2 cm2 = 30 cm2

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2 years ago

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The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth-graders. Scores on the test range

LiRa [457]

Answer:

Its standard deviation is 3.79.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

$\sigma = 125, n = 1089$

So

$s = \frac{125}{\sqrt{1089}} = 3.79$

Its standard deviation is 3.79.

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3 years ago

Jake's class has 18 boys and 9 girls which represents the part of the class that is boys?

natima [27]

18 boys represents the boys

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3 years ago

4x+1=2x+11 what is the value of x

egoroff_w [7]

X = 5!

4x+1=2x+11
-1 -1 (Subtract 1 from both sides)
4x =2x+10
-2x -2x (Subtract 2x from both sides)
2x = 10
—— ——
2x 2x (Divide both sides by 2x)

X = 5

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2 years ago

Help help help math math

horrorfan [7]

Answer:

-6x-10

Step-by-step explanation:

you multiply 3x by -2

and 5 by -2

never forget the negative

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2 years ago