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Marianna [84]
3 years ago
7

WILL GIVE BRAINLIEST!! The data set {2,5,q,10,13,16} has mean x¯=9Find the value of q

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

  • #3. 8

Step-by-step explanation:

<u>Frequency of data </u>

  • 6

<u>Sum of data:</u>

  • 2 + 5 + q + 10 + 13 + 16 = 46 + q

<u>Sum of data as per mean and frequencies:</u>

  • 9*6 = 54

<u>Compare the sums:</u>

  • 46 + q = 54
  • q = 54 - 46
  • q = 8

Correct choice is #3. 8

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A model rocket is launched straight into the air from platform 3 feet above the ground with an intial velocity of 192 feet per s
Pachacha [2.7K]

Answer:

Step-by-step explanation:

the function -16t^2 + 64t + 192 give the height S, in ft, of a model water rocket launched with a velocity of 64 ft/second from a hill that is 192 ft high. a) determine how long it will take the rocket to reach the ground, b) find the interval on which the height of the rocket is greater than 240 ft.

6 0
2 years ago
For which mapped relation is the domain {1,2,3}?
Serga [27]

Answer:

C

Step-by-step explanation:

For any given function, all first input values (x-values/coordinates) in the relation are considered as the domain values. While the output values (y-values/coordinates) make up the range of the given function.

The mapped relation that has a domain of {1,2,3}, is the mapped relation that has 1, 2, and 3 on the input side on our left.

Therefore, the mapped relation in option C is the answer.

4 0
3 years ago
PLEASE HELP
enyata [817]

Answer:

There are 24 ways to select one book of each type.

Step-by-step explanation:

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!(n-k)!}

It is provided that there are 6 different biographies and 4 different mystery novels on a bookshelf.

Compute the number of ways to select a biography as follows:

Number of ways to select a biography =

={6\choose 1}\\\\=\frac{6!}{1!(6-1)!}\\\\=\frac{6\times 5!}{1\times 5!}\\\\=6

There are 6 ways to select a biography.

Compute the number of ways to select a mystery novel as follows:

Number of ways to select a mystery novel =

={4\choose 1}\\\\=\frac{4!}{1!(4-1)!}\\\\=\frac{4\times 3!}{1\times 3!}\\\\=4

There are 4 ways to select a mystery novel.

Then the total number of way to select one book of each type is:

{6\choose 1}\times {4\choose 1}=6\times 4=24

Thus, there are 24 ways to select one book of each type.

6 0
3 years ago
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Answer:

area of rectangular=2(l+b)

2(8x+9x)

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8 0
3 years ago
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What is the solution set of the following equation? -5x + x + 9 = -4x + 12
podryga [215]

A linear equation with one variable, x, is an equation that can be written in the standard form a x+b=0 where a and b are real numbers and a≠0. For example. 3x−12=0. A solution to a linear equation is ...Answer:

Step-by-step explanation:A linear equation with one variable, x, is an equation that can be written in the standard form a x+b=0 where a and b are real numbers and a≠0. For example. 3x−12=0. A solution to a linear equation is ...

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