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sladkih [1.3K]
3 years ago
10

Find the value c that completes the square for x^2-8x+c

Mathematics
1 answer:
Blababa [14]3 years ago
7 0

Answer: 16

Step-by-step explanation:

x^2-8x+c

Let's complete the square.

c=(\frac{b}{2})^2

c=(\frac{-8}{2})^2

c=(-4)^2\\ c=16

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Seven more than the quotient of a number and 2 is -4
Rzqust [24]

Answer:

x/2 + 7 = -4

Step-by-step explanation:

7 more just means plus 7

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5 0
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For the data in the table x|y 3|6 6|18 8|24, does y vary directly with x? write and equation for the direct variation. a. yes;y=
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8 0
3 years ago
Use an algebraic equation to find the measures of the two angles described below. begin by letting x represent the degree measur
Lina20 [59]
Two angles are said to be supplement when their measure add up to 180 degrees.

Assume that the angle we are looking for is a and its supplement is s (I used s instead of x).

a + s = 180
a = 180 - s ......> equation I

We know that <span>the measure of the angle is eight times greater than its supplement.
This means that:
a = 8s ......> equation II

Substitute by equation II in equation I to get s as follows:
180 - s = 8s
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Substitute in equation I to get the measure of the angle as follows:
a = 180 - s = 180 - 20 = 160 degrees

Based on these calculations:
The measure of the angle is 160 degrees
The measure of its supplement is 20 degrees</span>
4 0
4 years ago
What is a counter example in following sentence:
koban [17]

(1/2) ^2 = 1/2 * 1/2 = 1/4

1/4 < 1/2

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3 years ago
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