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Nadusha1986 [10]
3 years ago
5

Can someone help me with 13 or at least give me a formula I could use?

Mathematics
2 answers:
Rudiy273 years ago
8 0
You just combine alike terms so 2 times 1 is 2 so it will be (3h times 2hcubed)squared
loris [4]3 years ago
8 0
EDIT : Misread the question.
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How do you write 0.277777777777...... as a fraction?
Andrews [41]

Answer:

27777/100000

Step-by-step explanation:

i hope its right

8 0
2 years ago
5x + 5y = -5 when y = 1<br><br> solve for x in <br><br> 10 points .
san4es73 [151]

Step-by-step explanation:

5x + 5y = -5 , when y = 1

5x + 5.1 = -5

5x + 5 = -5

5x = -5 - 5

5x = -10

x = -10/5

x = -2

4 0
2 years ago
A group of 60 students were asked if they played field hockey, basketball or soccer. The diagram below displays the results ñ. W
seropon [69]
Hfndndjdjdndndndndjdjdndhdhdhdndnd
6 0
3 years ago
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa
Sindrei [870]

Answer:

0.7698

Step-by-step explanation:

If you call your random variable X, then what you are looking for is

P(87 \leq X \leq 123)

because you want the probability of X being <em>between 87 and 123.</em>

We need a table with of the normal distribution. But we can only find the table with \mu = 0 and \sigma = 1. Because of that, first we need to  <em>normalize </em>our random variable:

Z = \frac{X - \mu}{\sigma} = \frac{X - 105}{15}

(you can always normalize your variable following the same formula!)

now we can do something similar to our limits, to get a better expression:

\frac{87 - 105}{15} = \frac{-18}{15} = -1.2

\frac{123 - 105}{15} = \frac{18}{15} = 1.2

And we transform our problem to a simpler one:

P(87 \leq X \leq 123) = P(-1.2 \leq Z \leq 1.2) = P(Z \leq 1.2) - P(Z \leq -1.2)

(see Figure 1)

From our table we can see that P(Z \leq 1.2) = 0.8849 (this is represented in figure 2).

Remember that the whole area below the curve is exactly 1. So we can conclude that  P(Z \geq 1.2) = 0.1151 (because 0.8849 + 0.1151 = 1). We also know the normal distribution is symmetric, then

P(Z \leq -1.2)= P(Z \geq 1.2) = 0.1151.

FINALLY:

P(Z \leq 1.2) - P(Z \leq -1.2) = 0.8849 - 0.1151 = 0.7698

5 0
3 years ago
[ANSWER FOR BRAINIEST]
s2008m [1.1K]

Note the order of the letters:

A C E G

M N P R

You read it like this:

A ≅ M

C ≅ N

CE ≅ NP

AG ≅ MR

... and so on

In the following choices:

CE ≅ NP is the true statement

8 0
3 years ago
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