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zvonat [6]
3 years ago
6

A multiple choice exam consists of 10 questions, each having 5 possible answers. To pass, you must answer at least 6 out of 10 q

uestions correctly. What is the probability of You go into the exam without knowing a thing, and have to resort to pure guessing, you have studied enough so that on each question, 3 choices can be eliminated. But then you have to make a pure guess between the remaining 2 choices?
Mathematics
1 answer:
prohojiy [21]3 years ago
6 0
You have a 1:2 chance of guessing the right answer, if you have to guess between the two.
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let's one two and three have the following relationships <1and <2 are adjacent right angles <1 and <3 are vertical a
Fed [463]

Answer:

180 Vertical angles are opposite angles that share only a vertex.  Since ∠3 is adjacent to both ∠1 and ∠2, this means that ∠3 shares a side and vertex with both of these angles.

This means that ∠3 and ∠1 form a straight line; this makes them a linear pair, which makes their sum 180°.

8 0
2 years ago
N-24/8 = N/6 N equals to what?
Fed [463]

Answer:

We have 6( n - 24 ) = 8N;

Then 6n - 144 = 8N;

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-144 = 2N;

N = (-144)÷2;

N = - 72;

Step-by-step explanation:


6 0
3 years ago
Solve each of the following equations. Be make sure to check your solutions. Solve for part b only.
Alona [7]

Answer:

or, 3x-5=2.5x+3-x+4

or, 3x-1.5x=7+5

or, 2.5x=12

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3 0
3 years ago
I need to know the answers for a, b, and c for 23.
Lubov Fominskaja [6]

Answer:

Step-by-step explanation:

m∠1 = 50°

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Step-by-step explanation:

Each triangle's angles have to add up to 180°. Use supplementary angles theorem to help solve.

5 0
3 years ago
Read 2 more answers
What is the slope of a line PARALLEL to the graph?
SSSSS [86.1K]
If you mean parallel to another line, you have to find the the equation of that line. Lets just say it was y= 7x-2. To find the slope of a line parallel to that, then you look at the slope of that line, which in this case would be 7. The slope of a line parallel would have to be the same. So, I can't give you a direct answer because I can't see the graph but that is how you get the answer.
8 0
3 years ago
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