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n200080 [17]
3 years ago
5

Marlene noticed that when a pair of parallel lines was cut by a transversal, two particular vertical angles were reflections of

each other. What can she conclude from this observation?
A. the measures of the angles must be equal.

B.the angles must be complementary.

C.the angles must be supplementary.

D.the measures of the angles must add to 360°.

Mathematics
2 answers:
Serjik [45]3 years ago
5 0

Answer:

<h2>A. the measures of the angles must be equal.</h2>

Step-by-step explanation:

She can conclude that the measure of the angles must be equal, because vertical angles are angles opposite each other when to lines cross, the only thing they have in common is the vertex, when this happens that pair of angles are congruent.

An image is attached to show an example of vertical angles, which are always congruent.

Trava [24]3 years ago
3 0
A.the measures of the angles must be equal
Vertical Angles- are the angles opposite of each other when two lines cross. They are always equal.
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
Determine the absolute value of -11.
joja [24]
The absolute value of any number is positive...even if it says negative.
Examples :
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8 0
3 years ago
Elapsed time 50 minutes.ending time 9:05 am find starting time
never [62]

Answer:

8:15 am

Step-by-step explanation:

Count back from 9:05 50 minutes. I did it in parts.

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8 0
3 years ago
Read 2 more answers
A metallurgist has one alloy containing 45% copper and another containing 69% copper. How many pounds of each alloy must be use
lakkis [162]

5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let x represent the amount of 45% copper and y represent the amount of 66% copper needed to make 42 pounds of a third alloy containing 66% copper. Hence:

x + y = 42   (1)

Also:

0.45x + 0.69y = 42(0.66)   (2)

This gives:

x = 5.25, y = 36.75

5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper

Find out more on equation at: brainly.com/question/2972832

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8 0
2 years ago
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Natali5045456 [20]

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3/5 is greater than 1/5 because they are both positive and 3/5 is the bigger number

-1/5 is not less than -3/5 because if A is true, than this cannot be true because it is saying the exact opposite.

6 0
3 years ago
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