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horsena [70]
3 years ago
15

X^2+8x+c Perfect square Trinomial

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0
We know <span>square of the sum <span>formula</span></span>
(a+b)²=a²+2ab+b²
so we need
x²+8x+c=(x²+2*4*x+4²)-16+c=(x+4)²+c-16,
so for full square we need  c-16=0
c=16
Answer: c=16
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6.005= as what percent
kondaur [170]
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Per cent

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If you would like to turn a percent into a decimal, divide the percent by 100, or simply put the decimal point to back the left two times!
6 0
2 years ago
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4 0
3 years ago
It takes 1 hour for 1 worker to clean an area that is 20 feet by 30 feet. How many workers are needed to clean 18,400 square fee
Lina20 [59]

Answer:

4 workers

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3 0
3 years ago
Write an equation in slope-intercept form that goes through (12, 4) and (20,8).
spayn [35]

Answer:

Equation in slope-intercept form that goes through (12, 4) and (20,8) is: y = \frac{1}{2}x-2

Step-by-step explanation:

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(x_1,y_1) = (12,4)\\(x_2,y_2) = (20,8)

Slope intercept form of line is given as:

y = mx+b

Here m is the slope of the line and b is the y-intercept.

Slope of a line is calculated by the formula:

m = \frac{y_2-y_1}{x_2-x_1}

Putting the values

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Putting the value of slope in slope-intercept form we get

y = \frac{1}{2}x+b

To find the value of b, any one point will be put in the equation

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Putting the value of b

y = \frac{1}{2}x-2

Hence,

Equation in slope-intercept form that goes through (12, 4) and (20,8) is: y = \frac{1}{2}x-2

4 0
3 years ago
(I have two questions in 1 cause I only have 11 points)
yuradex [85]
Question 1:

If 18 earmuffs fit on one shelf then divide 567 by 18 which is 31.5


Question 2:
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