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3 years ago

Please help

Mathematics

2 answers:

CaHeK987 [17]3 years ago

7 0

Answer:

A. 50

Step-by-step explanation:

B and C are supplementary angles as adjacent angles of a parallelogram, which means they sum to 180°.

m∠B + m∠C = 180°
3x - 9 + 39 = 180
3x + 30 = 180
3x = 150
x = 50

Correct choice is A

lesya692 [45]3 years ago

3 0

$Hello$ $There!$

ANSWER:

$44.$

If you need a explanation, just comment below! :)

$AnimeVines$

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Find the value of 9w + 1 given that -5w -5 = 5

vredina [299]

Answer:

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Step-by-step explanation:

First, let's see what the value of w is, by solving -5w - 5 = 5.

-5w - 5 = 5 Add 5 on both sides.

-5w = 10 Divide -5 on both sides.

w = -2

Now, we know that w is equal to -2, let's plug it in to find the value.

9(-2) + 1 Distribute.

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gladu [14]

Answer:

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Step-by-step explanation:

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Nutka1998 [239]

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4 years ago

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A bicyclist travels at a constant speed of 12 miles per hour for a total of 45 minutes. Use set notations for the domain and ran

Mama L [17]

A bicyclist travels at a constant speed of 12 miles per hour for a total of 45 minutes

Domain x is number of hours

Range y is distance traveled

speed = 12 miles per hour

time = 45 minutes = $\frac{45}{60}$ = 0.75 hours

We know distance formula

Distance = speed * time

Distance = 12 * 0.75= 9 miles

Number of hours x is 0 to 0.75 hours

So domain is { $x | 0$ }

Distance is 0 to 9 miles

So range is { $x | 0$ }

5 0

3 years ago