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AlexFokin [52]
4 years ago
15

How do I do this? (Number 8)

Mathematics
2 answers:
JulsSmile [24]4 years ago
4 0
He's not correct. The area of the figure is 89 sq. ft.

6*8 = 48
7*7 = 49

48 + 49 = 97

but those two rectangle are shared with the little rectangle with 2 by 4
so this area = 2 * 4 = 8

97 - 8 = 89

 <span />
den301095 [7]4 years ago
3 0
You multiply 2 numbers at a time then add all
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What is the equation perpendicular to y= -1/5x +3 and goes through the point (7,4)?
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Answer:

y - 4 = 5(x - 7) or y = 5x - 31

Step-by-step explanation:

Slope-intercept form: <em>y = mx + b</em> (m = slope, b = y-intercept)

Point-slope form: <em>y - y₁ = m(x - x₁)</em> ((x₁, y₁) = known point, m = slope)

1. Slope: perpendicular to -1/5 --> 5 (negative reciprocal)

2. Insert knowns into equation: y - 4 = 5(x - 7)

3. Turn into point-slope form (assuming that is what we are looking for):

Multiply: <em>y - 4 = 5x - 35</em>

Subtract: y = 5x - 31

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