Help please number 22

Given:

When the measure of ∠4 is 120°, the measure of ∠1 is 60°.

To determine:

The statement is always or sometimes true.

Solution:

If two lines are intersecting, then 4 angles are formed.

Sum of the measure of adjacent angles in a straight line is always 180°.

Let us substitute ∠4 = 120° and find ∠1.

m∠1 + m∠4 = 180°

m∠1 + 120° = 180°

Subtract 120° from both sides.

m∠1 + 120° - 120° = 180° - 120°

m∠1 = 60°

Therefore when the measure of ∠4 is 120°, the measure of ∠1 is 60°.

This statement is always true.

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: