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SIZIF [17.4K]
2 years ago
11

X 2 +6x+___ complete the square

Mathematics
1 answer:
vaieri [72.5K]2 years ago
6 0
9 is the blank.

(a+b)^2 = a^2 + 2ab + b^2

a = x
b = 3

(x+3)^2 = x^2 + 6x + 9
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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
180 = 9s
s = 20 degrees

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
3 years ago
What is 1,345 /99 rounded to the nearest integer?
mylen [45]
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3 0
3 years ago
How to do question 13?
grin007 [14]
You answer on question 13 is 350
6 0
2 years ago
Read 2 more answers
HELP ME PLEASE Find the slope of the line and write it as a rate of change.
Vaselesa [24]

Don’t worry, bud, I gotchu.

Answer: 7.647 but rounded to the second decimal place is 7.65

m = (y2-y1) / (x2-x1)

m= (20000-7000)/(2600-900)

And you know what happens next.

8 0
3 years ago
PLEASE HELPPPPPPPP!!!!!
Alekssandra [29.7K]

Answer: b=27

Step-by-step explanation: Add 119+34 and you get 153. Subtract 153 from 180 and you get 27. Hope this helps.

4 0
2 years ago
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