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mel-nik [20]
2 years ago
5

KLMN is a rectangle. Angle N measures (12a+24) Find the value of a.

Mathematics
2 answers:
kumpel [21]2 years ago
5 0
If KLMN is a rectangle. All the angles are 90 degrees. So 90 = 12a + 24.
Subtract 24 from both sides
90 - 24 = 12a
66 = 12 a

Solve for a by dividing by 12
66/12 = 5.5
Oduvanchick [21]2 years ago
4 0
12a+24 = 90 because all angles in a rectangle equal 90 degrees.
Subtract 24 from both sides.
12a=66
Divide both sides by 12
a=5.5
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the probability of no defects in 10 feet of steel = 0.1353

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A roll of steel is manufactured on a processing line. The anticipated number of defects in a 10-foot segment of this roll is two.

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