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12345 [234]
3 years ago
15

Find the missing angle measure in each figure​

Mathematics
1 answer:
Brrunno [24]3 years ago
8 0

Answer:

x = 100°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

here n = 7, hence

sum = 180° × 5 = 900°

Sum the given interior angles and equate to 900

x + 155 + 116 + 135 + 135 + 116 + 143 = 900

x + 800 = 900 ( subtract 800 from both sides )

x = 100°

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2 years ago
A car drove 330 miles in 6 hours at a constant rate. If the car’s rate of travel slows by 10 mph, what is the new, slower rate o
12345 [234]

Answer:

45 mph

Step-by-step explanation:

Given: Distance travelled= 330 miles

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Lets find out speed of car drove.

Formula; Speed= \frac{Distance}{time}

Speed= \frac{330}{6} = 55\ mph

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As we have been informed that car´s rate of travel slows by 10 mph

∴ we have to reduce the current speed of car by 10 mph; (55-10)= 45\ mph

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2 years ago
Two parallel lines are crossed by a transversal.What is the value of m?
AlladinOne [14]

Same side interior angles are supplementary, which means together they add up to 180 degrees.

In order to find the value of angle m, subtract 180 from the supplement.

180 - 78 = 102

The value of m is 102 degrees

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2 years ago
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