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PIT_PIT [208]
3 years ago
14

Evaluate A2 for A = -3. -9 -6 6 9

Mathematics
1 answer:
Slav-nsk [51]3 years ago
6 0

A^2

-3^2 = 9

 the answer is 9

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PLEASE HELP ASAP! Several books are placed on the bottom three shelves of a bookcase. When 1 book was taken from the first shelf
sergeinik [125]

Answer:

24 books

Step-by-step explanation:

Initially the top shelf has no books placed on

Then books added to this:

  • 1+2+3= 6

And now all 4 shelves have same amount of books. So total number is:

  • 4*6= 24 books

There are 24 books in the bookcase

6 0
3 years ago
Find the geometric mean of 2a and 4a.
Andreyy89
3a.

Explanation:
the mean, first of all, is the average. so, you need to find the average between 2 ans 4 since it has the same label. 2+4=6. 6/2=3
Answer: 3a

8 0
3 years ago
The coordinate plane has the following points A=(2, 1), B=(5, 1), C=(7,2), and 1 point
dusya [7]

Answer:

<em>d = 3</em>

Step-by-step explanation:

Coordinate Plane

The image provided shows the four points given:

A=(2, 1), B=(5, 1), C=(7,2), D=(4,2).

It can be clearly seen the length of CD is just the difference of their x-coordinates:

CD = 7 - 4 = 3

We can also use the formula of the distance.

Given two points C(x,y) and D(w,z), the distance between them is:

d=\sqrt{(z-y)^2+(w-x)^2}

d=\sqrt{(2-2)^2+(7-4)^2}

d=\sqrt{0^2+3^2}

d=\sqrt{9}

d = 3

3 0
3 years ago
Find the surface area and volume of a rectangular prism with the following dimensions: Length = 4 cm, Width = 9 cm, Height = 2 c
belka [17]

Answer:

the surface area is 124

the volume is 72

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If f(n) n2 - 2n, then f(2) = 0. True.or.False?
Lady_Fox [76]

Answer:

True

Step-by-step explanation:

So we know that:

f(n)=n^2-2n

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To determine the answer, substitute 2 for n in the function and solve. So:

f(2)=(2)^2-2(2)

Square and multiply:

f(2)=4-4

Subtract:

f(2)=0

So, the statement is indeed true.

And we're done!

6 0
3 years ago
Read 2 more answers
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