2 years ago

If triangle ABD is similar to Triangle EFG, find BC and FH

Mathematics

1 answer:

Liula [17]2 years ago

7 0

Answer:

B. BC=12, FH=9

Step-by-step explanation:

I guessed and it was right

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Find the slope of the line through the pair of points: (5, 20) and (4, -17)

aliya0001 [1]

Answer:

m (slope) = 37

Step-by-step explanation:

use the slope-line formula, y2 - y1/x2 - x1

put in coordinates (5, 20) for x1 and y1

put in coordinates (4, -17) for x2 and y2

simplify

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3 years ago

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Evaluate the expression when a= 4 and b= -7. <br> -9a+b

Helen [10]

Answer:

-43

Step-by-step explanation:

So first things first you will multiply -9 by 4 and that gives you -36, Next you will add -7 to -36 which gives you -43.

$-9(4)+(-7)\\-36+(-7) \\= -43$

Hope this helps :D

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3 years ago

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Write an equation of the line that passes through (2, -3) and is perpendicular to the line y=-2x-3

Natalija [7]

Answer:

$y=\frac{1}{2} (x-2)-3$ or $y=\frac{1}{2} x-4$

Step-by-step explanation:

The perpendicular slope is the opposite-reciprocal of the original slope:

Perpendicular slope of -2 is $\frac{1}{2}$

Write the equation in point-slope form ( $y=a(x-h)+k$ ):

$y=\frac{1}{2} (x-2)-3$

Convert to slope-intercept form if needed:

$y=\frac{1}{2} x-1-3$

$y=\frac{1}{2} x-4$

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3 years ago

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Solve the equation 3 (x+ 4.5) = 36 one step at a time. Use the diagram to help you

Ksivusya [100]

Answer:

=7.5

Step-by-step explanation:

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2 years ago

The area of a rectangular plank is 4500 cm². The plank was broken into two pieces, one of which is a square and the other a rect

svp [43]

Answer:

$Xs=30cm$ and $As=900 cm^{2}$

Step-by-step explanation:

At=As+Ar; A=b.h and $At=4500 cm^{2}$ , then: At=(x+120)x so

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3 years ago

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