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nasty-shy [4]
3 years ago
12

Write down in terms of n,

Mathematics
1 answer:
mojhsa [17]3 years ago
4 0
A) is counting down by 3
B) is counting up by 5
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G The swimmer's legs appear shorter while in teh pool because of the of lights
goblinko [34]

Answer:  c. refraction

Step-by-step explanation:

7 0
3 years ago
To factor the quadratic expression x^2−8x−10 by completing the square, what value would be added? A. 64 B. 8 C. 16 D.-16
Elan Coil [88]

Answer:

C

Step-by-step explanation:

When completing the square, we essentially want to create a perfect square trinomial by adding a constant.

If we have the following expression:

x^2+bx

And we want to complete the square, we will need to divide the b-coefficient by half and then square it.

Thus, the added term should be:

(b/2)^2

In the given equation, we have:

(x^2-8x)-10

The b term here is 8. Therefore:

(8/2)^2\\=(4)^2\\=16

The value we would add would be 16.

The answer is C.

Further notes:

To complete the square, add 16 like mentioned earlier. However, we also need to subtract 16 to balance things out:

(x^2-8x)-10\\=(x^2-8x+16)-10-16\\

The expression inside the parentheses is now a perfect square trinomial. Factor it:

=((x)^2-2(4)(x)+(4)^2)-26\\=(x-4)^2-26

And we are done!

4 0
3 years ago
Read 2 more answers
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ruslelena [56]

Answer:

m1=43

Step-by-step explanation:

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8 0
3 years ago
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The Slope of a Line
Klio2033 [76]

Answer:

m = -3

Step-by-step explanation:

Slope Formula: m = \frac{y2-y1}{x2-x1}

Simply plug in our coordinates to find slope:

m = (11 - 2)/(5 - 8)

m = 9/-3

m = -3

5 0
3 years ago
The slope and unit rate
Julli [10]
The slope is 4/5 I think
6 0
3 years ago
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