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4 years ago

angle 1 and angle 2 are complementary angles. given the following information, find measures of both angles

Mathematics

1 answer:

kifflom [539]4 years ago

7 0

∠1 and ∠2 are complementary.
∠1 + ∠2 = 90°

Question a:

∠1 = 23°
∠2 = 90 - 23 = 67°

Ans: 67°

Question b:
∠1 = x
∠2 = 2x + 3
x + 2x + 3 = 90
3x + 3 = 90
3x = 90 - 3
3x = 87
x = 29

∠1 = 29°
∠2 = 2(29) + 3 = 61°

Ans: ∠1 = 29°, ∠2 = 61°

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3 years ago

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3 years ago

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3 years ago

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3 years ago

when nancy started middle school, she was 60 inches tall. when she started high school, she was 66 inches tall. what was the per

Ivahew [28]

Answer:

The percent change in Nancy height is 10%

Step-by-step explanation:

Given : when Nancy started middle school, she was 60 inches tall. when she started high school, she was 66 inches tall.

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Percentage change is given by the ratio of the difference in old value and new value to the old value times 100

Mathematically written as

$Percentage\ change =\frac{new\ value-old\ value}{Old\ value}\times 100$

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Thus, the Percentage change is given as,

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Simlify, we have,

$Percentage\ change =\frac{6}{60}\times 100$

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3 years ago

Read 2 more answers