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Sergio [31]
3 years ago
15

Find the standard deviation and mean of 3,5,7, and 9.

Mathematics
1 answer:
Lady_Fox [76]3 years ago
7 0

Answer:

Standard Deviation is 2.236

Mean is 6

Step-by-step explanation:

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A certain isotope decays so that the amount A remaining after t years is given by:
pashok25 [27]

f(h(x))= 2x -21

Step-by-step explanation:

f(x)= x^3 - 6

h(x)=\sqrt[3]{2x-15}

WE need to find f(h(x)), use composition of functions

Plug in h(x)

f(h(x))=f(\sqrt[3]{2x-15})

Now we plug in f(x) in f(x)

f(h(x))=f(\sqrt[3]{2x-15})=(\sqrt[3]{2x-15})^3 - 6

cube and cube root will get cancelled

f(h(x))= 2x-15 -6= 2 x-21

3 0
3 years ago
How can we solve this need answer pls
adoni [48]

Answer:

(-5, -3)

Step-by-step explanation:

Scale factor 1/2 means divide points by 2

3 0
3 years ago
The area of a triangle is 16 units square. The length is twice the height. Find the height
Norma-Jean [14]

The formula for area of a triangle is 1/2 x base x height.

Let the height = x

Then the base (length) = 2x ( twice the height)

You know have 16 = 1/2 * 2x * x

Multiply both sides by 2 to remove the 1/2:

32 = 2x * x

Simplify the right side:

32 = 2x^2

Divide both sides by 2:

16 = x^2

Take the square root of both sides:

X = 4

The height is 4 units and the length is 8 Units

8 0
3 years ago
Randall’s family drove to the beach for vacation. They drove the same speed throughout the trip. The first day, they drove 130 m
nata0808 [166]
390 Miles per 6 Hours.
6 0
3 years ago
Read 2 more answers
1/2 of 1/3 and 1/2 of 3/4<br>sorry having a panic attack cant do math​
noname [10]

Answer:

see below

Step-by-step explanation:

of means multiply

1/2 * 1/3

1/6

1/2 * 3/4

3/8

4 0
3 years ago
Read 2 more answers
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