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dem82 [27]
3 years ago
8

Which of the following gives an example of a set that is closed under addition.

Mathematics
1 answer:
cluponka [151]3 years ago
4 0
I believe the answer is D
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If BD and EG are parallel lines and mBCF = 50°, what is mEFH?<br> Look at this diagram:
Burka [1]
It’s hard to tell due to no labels, but these are your angles due to the equal angles theorem and a few other theorems. Hopefully with this image you can hopefully find your answer. You may need to add angles together depending on what you are looking for. And possible even figure out what angle measure would make a (180 degree) triangle.
Hope this helped

4 0
3 years ago
What best describes the expression y over 7? 7 times some number Some number minus 7 7 more than some number Some number divided
marysya [2.9K]
"Over" usually means divide. First hint, check.

If we write it out, it looks like this:

\frac{y}{7}

This is the same as <em>some number divided by 7.</em>
4 0
3 years ago
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You are going to roll two dice. Let the variable x = the sum of the numbers rolled. What is the probability that x = 9 ?
Vladimir79 [104]

The  first cube can land in any one of  6  ways.
The  second cube can land in any one of  6  ways.
Total number of ways that  2 dice can land = (6 x 6) = 36 ways.

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3, 6
4, 5
5, 4
6, 3

There are  4  ways to roll a 9, out of a total of  36  ways that
the dice can land.  So the probability of rolling a  9  is

       4 / 36  =  1 / 9  =  <em>11-1/9 percent</em>


7 0
3 years ago
Evaluate -5 - 15 + 4 + 15
dexar [7]

Answer:

Step-by-step explanation:

-5+-15= -20

4+15= 19

-20+19

-1

7 0
3 years ago
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How do you find the distance between two coordinate points on the graph?
borishaifa [10]

Answer:

point of intercept

Step-by-step explanation:

measure x and y axis to see where they cross

6 0
3 years ago
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