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pashok25 [27]
3 years ago
15

SOMEONE PLS HELP ASAP

Mathematics
1 answer:
aksik [14]3 years ago
5 0

Answer: h(3) = 1

Step-by-step explanation: If x = 3, draw a straight horizontal line at it. It crosses 1 at y, so h(3) = 1.

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Adam had silly putty 4 5/6 inches long. If he stretched it 2 2/3 times it's current length how long would it be?
Nikitich [7]
You multiply the 2 together 4 5/6 and 2 2/3. 
4 5/6=29/6
2 2/3=8/3 
you multiply the tops together then the bottoms together
29*8=232
3*6=18
232/18=116/9
8 0
2 years ago
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Hi! Can you join my quizizz? The code is 5373177.
Elis [28]

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Step-by-step explanation:

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Evaluate 3x for x = -2, x = 1, and x = 3.
jok3333 [9.3K]

Answer:

A) 1/9, 3, 27

Step-by-step explanation:

i think you mean 3^x (and not 3x).

because otherwise none of the answer options withdraw makes any sense.

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3 0
2 years ago
V=1/2at^2 solve for t
malfutka [58]

\dfrac{1}{2}at^2=V\qquad\text{multiply both sides by 2}\\\\at^2=2V\qquad\text{divide both sides by}\ a\neq0\\\\t^2=\dfrac{2V}{a}\to\boxed{t=\sqrt{\dfrac{2V}{a}}}

8 0
3 years ago
The distribution of the average amount of sleep per night gotten by college students is roughly bell-shaped with mean 412 minute
kirza4 [7]

Answer:

P(X

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(412,68)  

Where \mu=412 and \sigma=68

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard table or excel and we got:

P(z

4 0
3 years ago
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