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Ostrovityanka [42]
3 years ago
9

What is the missing piece of the information in the paragraph proof?

Mathematics
2 answers:
shutvik [7]3 years ago
7 0

Answer:

The correct option is a.

Step-by-step explanation:

Given: ∠1 and ∠2 are supplementary angles.

Prove: l║m

Proof:

It is given that ∠1 and ∠2 are supplementary angles.

\angle 1+\angle 2=180^{\circ}           .... (1)

∠1 and ∠3 are supplementary angles because both angles lie on a straight line.

\angle 1+\angle 3=180^{\circ}           .... (2)

Using (1) and (2), we get

\angle 1+\angle 2=\angle 1+\angle 3

Subtract angle 1 from both the sides.

\angle 2=\angle 3

\angle 2\cong \angle 3

Since ∠2 ≅ ∠3 are corresponding angles,

l\parallel m

Hence proved.

Therefore the missing statement is \angle 2=\angle 3 and option a is correct.

Sophie [7]3 years ago
4 0
B. angle 2 and angle 3 and congruent.

Please press brainliest if this helped you.
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A roof drops 6 feet for every 3 feet forword,determine the slope of the roof the slope can be positive or negative
dalvyx [7]

Answer:

The slope is -2

Step-by-step explanation:

Since the roof is decreasing in height as it goes forward, I know that the slope must be negative. The equation to find the slope is rise/run. The vertical change, or the rise, is -6 feet, so that value goes on top of the fraction. The horizontal value, or the run, is 3 feet so that goes on the bottom of the fraction.

Now our fraction is \frac{-6}{3}

If you simplify that fraction, you'll get -2.

8 0
3 years ago
One day for plumbers in five helpers earned $350. At the same rate of pay, another group of five plumbers and six helpers earned
schepotkina [342]

Answer: a plumber earns $50 each day and a helper earns $30 each day.

Step-by-step explanation:

Let x represent the amount that a plumber earns in a day.

Let y represent the amount that a helper earns in a day.

One day, four plumbers and five helpers earned $350. This means that

4x + 5y = 350 - - - - - - - - - - -1

At the same rate of pay, another group of five plumbers and six helpers earned $430. This means that

5x + 6y = 430 - - - - - - - - - - - - 2

Multiplying equation 1 by 5 and equation 2 by 4, it becomes

20x + 25y = 1750

20x + 24y = 1720

Subtracting, it becomes

y = 30

Substituting y = 30 into equation 1, it becomes

4x + 5 × 30 = 350

4x + 150 = 350

4x = 350 - 150

4x = 200

x = 200/4 = 50

3 0
3 years ago
Jackie is creating a flower bed in the shape of a triangle what could be the possible measurement in feet
galben [10]
A. is the awnser glad i could help
7 0
3 years ago
How do you find the equivalent ratios
larisa86 [58]

Answer:

by multiplying or dividing

Step-by-step explanation:

Two ratios that have the same value are called equivalent ratios. To find an equivalent ratio, multiply or divide both quantities by the same number. It is the same process as finding equivalent fractions.

8 0
3 years ago
. In the 2012 Olympics, Usain Bolt ran the 100m dash in 9.63 seconds. Jim Hines won the 1968 Olympic gold with a time of 9.95 se
Nimfa-mama [501]

Answer:

A. 3.2% faster

B. 3.3% slower

C. 103.3%

Step-by-step explanation:

In order to find this out, we need to take the differences and divide them by the comparative time. So, in the first one, we take the difference (.32) and divide it by Hines time.

.32/9.63 = 3.2%

In the second, we take the difference and divide by Bolt's time.

.32/9.95 = 3.3%

And finally, in the last one, we take Hines' time and divide by Bolt's.

9.95/9.63 = 103.3%

3 1
3 years ago
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