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Akimi4 [234]
3 years ago
8

Equivalent expression for 12x-10

Mathematics
1 answer:
blsea [12.9K]3 years ago
4 0

Answer:

2(6x-5)

Step-by-step explanation:

Factor 2 out of the expression.

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What is the theoretical probability of rolling anything other than a two on a fair six sided die?
mrs_skeptik [129]

Answer:

5/6 probability

Step-by-step explanation:

6 0
2 years ago
A random sample of n = 9 structural elements is tested for comprehensive strength. We know the true mean comprehensive strength
irinina [24]

Answer:

Probability that the sample mean comprehensive strength exceeds 4985 psi is 0.99999.

Step-by-step explanation:

We are given that a random sample of n = 9 structural elements is tested for comprehensive strength. We know the true mean comprehensive strength μ = 5500 psi and the standard deviation is σ = 100 psi.

<u><em>Let </em></u>\bar X<u><em> = sample mean comprehensive strength</em></u>

The z-score probability distribution for sample mean is given by;

                          Z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = population mean comprehensive strength = 5500 psi

            \sigma = standard deviation = 100 psi

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

Now, Probability that the sample mean comprehensive strength exceeds 4985 psi is given by = P(\bar X > 4985 psi)

    P(\bar X > 4985 psi) = P( \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{4985-5500}{\frac{100}{\sqrt{9} } } ) = P(Z > -15.45) = P(Z < 15.45)

                                                                  = <u>0.99999</u>

<em>Since in the z table the highest critical value of x for which a probability area is given is x = 4.40 which is 0.99999, so we assume that our required probability will be equal to 0.99999.</em>

4 0
3 years ago
Find what percent 591 is of 2364
kati45 [8]
To find the percent you would divide 591 by 2364 
591/2364=.25
.25*100 = 25% 
Does that make sense?
3 0
3 years ago
Read 2 more answers
-7(-13+19) distributive property
Vanyuwa [196]

Answer:

-42

Step-by-step explanation:

i put two documents for you. check them out and try to solve some math problems like this. hope it helps!:)

6 0
3 years ago
-14 &lt; 3 + 1 &lt; 13 answer inequality
ahrayia [7]

Answer: -14 < 1 < 3< 13

Step-by-step explanation:

This is the order from the lowest to greatest

5 0
2 years ago
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