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Darya [45]
3 years ago
9

Find A, B, and C 7th Grade Math Please help me answer this

Mathematics
1 answer:
xeze [42]3 years ago
3 0

Answer:

A=124 B=60 and C=60

Hope this helps.

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Planck's constant is best described as which of the following?
loris [4]
B is the answer i believe
6 0
3 years ago
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Use math vocabulary to explain why you think this number does not belong in the group. Be sure to write in complete sentences.
NISA [10]

Answer:

because like for example the given number are 01 12

23 34

or 12233445566778 and etc.

your situation are 4556 and 3224 because are not ordered pair

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=if%20%5C%3A%20100%20%7B%20%5C%3A%20%20%7D%5E%7B2%7D%20%20%5C%3A%20%20%3D%20251p%20%5C%3A%20sol
Nikolay [14]
= 39.84
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100^2=251
10000=251
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251 ℎ
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8 0
3 years ago
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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
I know how many line of symmetry but i dont know how to explain how i found the lines so can someone do it for me?
11111nata11111 [884]
2 because there are 4 numbers of edges and 4 vertices
7 0
3 years ago
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