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Mariana [72]
3 years ago
14

Use formulas to find the area of the figure. A triangle has a horizontal bottom side of length 8 centimeters and two sides of le

ngths 5 centimeters and 10 centimeters. The vertical distance from the top vertex to a line containing the bottom side is 3 centimeters.
Mathematics
1 answer:
polet [3.4K]3 years ago
7 0

Answer:

Don't let people bring you down you got this

Step-by-step explanation:

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Assume the random variable X is normally distributed with mean mu equals 50 and standard deviation sigma equals 7. Compute the p
drek231 [11]

Answer:

The probability that <em>X</em> is less than 42 is 0.1271.

Step-by-step explanation:

The random variable <em>X </em>follows a Normal distribution.

The mean and standard deviation are:

E (X) = <em>μ</em> = 50.

SD (X) = <em>σ</em> = 7.

A normal distribution is continuous probability distribution.

The Normal probability distribution with mean µ and standard deviation σ is given by,

f_{X}(\mu, \sigma)=\frac{1}{\sigma\sqrt{2\pi}}e^{-(x-\mu)^{2}/2\sigma^{2}};\ -\infty

To compute the probability of a Normal random variable we first standardize the raw score.

The raw scores are standardized using the formula:

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

These standardized scores are known as <em>z</em>-scores and they follow normal distribution with mean 0 and standard deviation 1.

Compute the probability of (X < 42) as follows:

P(X

*Use a <em>z</em>-table for the probability.

Thus, the probability that <em>X</em> is less than 42 is 0.1271.

The normal curve is shown below.

6 0
3 years ago
Could someone help me? Thanks &lt;3
earnstyle [38]

Answer:

D

Step-by-step explanation:

100 - 35 = 55 dollars remaining

55/20 = 3.25 hours until no money

4 0
2 years ago
Read 2 more answers
IM GIVING BRAINLIEST!
Mariana [72]
Sorry i don’t know the answer but i’m new to this app, and was wondering what brainliest is?:)
6 0
3 years ago
3 squared 7=7 1/3 simplification
anzhelika [568]
Error! Because that does not make any sense
6 0
3 years ago
Will mark brainliest if correct :)
Finger [1]

Answer:

d = 12

c = 4

so I think d > c

Step-by-step explanation:

1 x 12 = 12

0.75 x 4 = 3

12 + 3 = 15

8 0
3 years ago
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