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olchik [2.2K]
3 years ago
8

What is the average (arithmetic mean) of 5, 7, 12, and 12?

Mathematics
2 answers:
My name is Ann [436]3 years ago
8 0
The average of 5, 7, 12, and 12, is (5 + 7 + 12 + 12)/4.
(5 + 7 + 12 + 12)/4 = 36/4 = 9.
The average is 9.
inessss [21]3 years ago
4 0
To find the average, or mean, you add up all the numbers and divide the sum by the total number of numbers you added up.

5, 7, 12, 12
Add these numbers up ⇒ 5 + 7 + 12 + 12 = 36.
Divide 36 by the number of numbers added up, 4. ⇒ 36 ÷ 4 = 9

The mean of the numbers is 9.
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Please solve these questions. (Geometry)
son4ous [18]
No idea what this is, sorry
5 0
3 years ago
If the sum of difference of 13 and 4 divided 64 and 8 is subtracted from the result. Find that number. Mathematical equation plz
natka813 [3]

Answer:

13+4=17,17/64=3-8=-5

Step-by-step explanation:

this is the solution

3 0
3 years ago
Read 2 more answers
For which values of p and q, will the following pair of linear equations have infinitely many
Tema [17]
In order to have infinitely many solutions with linear equations/functions, the two equations have to be the same;
In accordance, we can say:
(2p + 7q)x = 4x [1]
(p + 8q)y = 5y [2]
2q - p + 1 = 2 [3]
All we have to do is choose two equations and solve them simultaneously (The simplest ones for what I'm doing and hence the ones I'm going to use are [3] and [2]):
Rearrange in terms of p:
p + 8q = 5 [2]
p = 5 - 8q [2]
p + 2 = 2q + 1 [3]
p = 2q - 1 [3]
Now equate rearranged [2] and [3] and solve for q:
5 - 8q = 2q - 1
10q = 6
q = 6/10 = 3/5 = 0.6

Now, substitute q-value into rearranges equations [2] or [3] to get p:
p = 2(3/5) - 1
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3 0
3 years ago
A pair of parallel lines is cut by a transversal, as shown below.
MA_775_DIABLO [31]

Answer:

x=45\degree

Step-by-step explanation:

In the diagram, the measure of the (x+30\degree) angle is equal to the 75\degree angle.

These two angles are alternate angles.

We therefore set up the following equation and solve for x.

x+30\degree =75\degree

\Rightarrow x =75\degree-30\degree

\Rightarrow x =45\degree

6 0
3 years ago
Read 2 more answers
The functions f and g are defined by f: x = 4 - x and g: x = hx² + k. If the composite function gf is given by gf: x + 2x² - 16x
kozerog [31]

Answer:

Step-by-step explanation:

f(x) = 4-x

g(x) = hx^{2}+k

g(f(x)) = 2x^{2}-16x+26

so put  f(x)  in g(x)

h(4-x)^{2}+k

h((4-x)(4-x) + k

h(x^{2}-8x+16)+k

if h = 2 , then

2x^{2}-16x+32 + k

and we want 26  instead of 32 so subtract 6 so K = (-6)

2x^{2}-16x+32 + (-6)

2x^{2}-16x+32 - 6

2x^{2}-16x+26

h=2

k=(-6)

5 0
2 years ago
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