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Mariulka [41]
3 years ago
9

What is the volume of the right triangular prism shown? for brainlist

Mathematics
2 answers:
emmainna [20.7K]3 years ago
5 0

Answer: C

Step-by-step explanation:

nadya68 [22]3 years ago
3 0

Answer:

V = 567 yd³

Step-by-step explanation:

V = \frac{1}{2} ach

V = \frac{1}{2}(9)(6)(21)

V = 567 yd³

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What is the biggest number less than 1,000 that has only 2s in its prime factorization?
Contact [7]

Answer:

2^9 = 512

Step-by-step explanation:

2^9 = 512 is the largest number less than 1000 that has only 2s in its prime factorization.

8 0
2 years ago
A normally distributed set of numbers has a mean of 75 and a standard deviation of 7.97. What percentage of values lies between
lana [24]

Answer:

63% of the values lies between 70 and 85.

Step-by-step explanation:

We are given that a normally distributed set of numbers has a mean of 75 and a standard deviation of 7.97.

<em>Let X = Set of numbers</em>

The z-score probability distribution for is given by;

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

where, \mu = mean value = 75

            \sigma = standard deviation = 7.97

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.

So, percentage of values that lies between 70 and 85 is given by = P(70 < X < 85) = P(X < 85) - P(X \leq 70)

   P(X < 85) = P( \frac{  X -\mu}{\sigma} < \frac{  85-75}{7.97} ) = P(Z < 1.25) = 0.89435  {using z table}

   P(X \leq 70) = P( \frac{  X -\mu}{\sigma} \leq \frac{  70-75}{7.97} ) = P(Z \leq -0.63) = 1 - P(Z < 0.63)

                                                 = 1 - 0.73565 = 0.26435

<em>Now, in the z table the P(Z </em>\leq<em> x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 1.25 and x = 0.63 in the z table which has an area of 0.89435 and 0.73565 respectively.</em>

Therefore, P(70 < X < 85) = 0.89435 - 0.26435 = 0.63 or 63%

<em>Hence, 63% of the values lies between 70 and 85.</em>

6 0
3 years ago
A table titled hours spent studying has entries 4, 5, 9, 15, 8, 2, 20, 1, 6, 9, 10, 8, 10, 8, 1, 2.
Elena L [17]

Answer:

Range = from the starting number(smallest #) to the largest number

Step-by-step explanation:

1-20

5 0
3 years ago
Read 2 more answers
Solve for the variable: 12.9 = x + 7.1 5.8 -5.8 20 -20
olya-2409 [2.1K]
12.9 = x + 7.1
subtract 7.1 from both sides to isolate the variable, x.

5.8 = x

5.8 is your answer.
3 0
3 years ago
felice bought 3/4 of a pound of american cheese at the dell she used 1/2 of the cheese to make sandwhiches how much cheese did s
andrew11 [14]
She used 2/4 pou.ds of cheese, or 8 ounces, or just a half-pound.
3 0
3 years ago
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