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3 years ago

Can u help me on how to figure out the answer for 12+3/8c=8

Mathematics

1 answer:

Likurg_2 [28]3 years ago

8 0

Answer:

c = 32/3

Step-by-step explanation:

Eliminate the fraction by mult. all terms by 8: 96 + 3c = 64.

Subtract 64 from both sides, obtaining: 3c = 32. Solving for c, c = 32/3.

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3 years ago

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Plot points A (10,-4), B (6,-7), C (3,-3), D (7,0) on the coordinate plane.

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$AB:\ \dfrac{-7-(-4)}{6-10}=\dfrac{3}{4}\\ \\BC:\ \dfrac{-3-(-7)}{3-6}=-\dfrac{4}{3}\\ \\CD:\ \dfrac{0-(-3)}{7-3}=\dfrac{3}{4}\\ \\DA:\ \dfrac{-4-0}{10-7}=-\dfrac{4}{3}$

The slopes of opposite sides are the same, so opposite sides are parallel. The slopes of adjacent sides have product of -1, then adjacent sides are perpendicular.

Find the lengths of all sides:

$AB=\sqrt{(10-6)^2+(-4-(-7))^2}=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\BC=\sqrt{(6-3)^2+(-7-(-3))^2}=\sqrt{3^2+4^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\CD=\sqrt{(3-7)^2+(-3-0)^2}=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\AD=\sqrt{(10-7)^2+(-4-0)^2}=\sqrt{3^2+4^2}=\sqrt{16+9}=\sqrt{25}=5\ units\\ \\$

All four sides are of the same length.

Quadrilateral ABCD is a square (all sides of equal length and perpendicular)

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Answer:

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Step-by-step explanation:

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4 years ago

Read 2 more answers