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nevsk [136]
3 years ago
11

What is the value of m in the figure below? If necessary,round your answer to the nearest tenth of a unit

Mathematics
1 answer:
bogdanovich [222]3 years ago
3 0

Answer:

D

Step-by-step explanation:

It turns out from similar triangles, that 7/BD = BD / 18. Use triangles  ABD and BDC to show this relationship. Solving this equation will give you BD

BD^2 = 7*18

BD^2 = 126     Just leave it in this form. Do your rounding at the end.

Because triangle BDC is a right angle triangle, use the Pythagorean Theorem to solve for m

m^2 =  BD^2 + 7^2

m^2 = 126 + 49

m^2 = 175                         Take the square root of both sides.

sqrt(m^2) = sqrt(175)

m = 13.22

so the answer is D

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2x + 8y = 5<br> 24x – 4y = –15
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2/ 24x - 4y = -15

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48x - 8x = -30

+

--------------------------

50x = -25

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5 0
3 years ago
What is the perimeter?
Vladimir79 [104]

Answer:

Perimeter = 22 units

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Step-by-step explanation: To find the perimeter of this figure, add the lengths of the rectangle's four sides (5+6+5+6=22). To find the area of this figure, multiply the length and width of the rectangle (5x6=30).

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BARSIC [14]

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4 0
3 years ago
8x - 2y = - 8 5x - 4y = 17
11111nata11111 [884]

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Solve for the first variable in one of the equations, then substitute the result into the other equation.

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2 years ago
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Diano4ka-milaya [45]

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The area of the one triangle is equal half area of the rectangle.

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The area of right triangle:

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Use the Pythagorean theorem to calculate the length of RO:

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The formula of an area of this right triangle is:

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8 0
3 years ago
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