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vaieri [72.5K]
3 years ago
10

Which expression represents the average of three test scores?

Mathematics
2 answers:
Elis [28]3 years ago
5 0

Answer:

c

Step-by-step explanation:

cccc

fomenos3 years ago
4 0

Answer:

It is C

Step-by-step explanation:

trust me ☜(゚ヮ゚☜)

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Can someone please explain to me how to do this.
JulijaS [17]
Y = x² - 4x + 4
y = 2x - 4

Find intersection of L and C:
x² - 4x + 4 = 2x - 4
x² - 6x + 8 = 0
<span> (x - 2)(x - 4) = 0
x = 2 or x = 4

When x = 2 , y = 2(2) - 4 = 0
When x = 4, y = 2(4) - 4 = 4

Points of intersection = A(2, 0) and B(4, 4)

Find the length of AB:

</span>&#10;\text {Length of AB}=  \sqrt{(4-0)^2 + (4-2)^2} =  \sqrt{16 + 4} = \sqrt{20}  = 4.47 \text{ units}
<span>
Answer: 4.47 units

</span>
4 0
4 years ago
Express number 9 as a unit rate, you can also round
Katena32 [7]
125/200= 0.625 cents

0.625 cents to the nearest cent= 0.63

The unit rate is 0.63 miles.

Hope this helps!







6 0
3 years ago
7over 8 times 4over 9 without multiplying
posledela
11 over 13 I think is the answer
4 0
3 years ago
A safe has a 4- digit code and no digit can be repeated what is the probability that the code has all even digits
n200080 [17]

Answer:

Step-by-step explanation:

5 0
3 years ago
Solve: 3(5x - 8) = 6x + 39
soldier1979 [14.2K]

Steps to solve:

3(5x - 8) = 6x + 39

~Distribute left side

15x - 24 = 6x + 39

~Add 24 to both sides

15x = 6x + 63

~Subtract 6x to both sides

9x = 63

~Divide 9 to both sides

x = 7

Best of Luck!

6 0
3 years ago
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