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Oduvanchick [21]
3 years ago
9

You take a three-question true or false quiz. You guess on all the questions. What is the probability that you will get a perfec

t score?
Mathematics
2 answers:
DedPeter [7]3 years ago
7 0
These are all independent events being that answering one question does not effect the other questions. Each question can be either true or false....so the probability of getting 1 correct is 1/2.

the probability of getting them all correct is : 1/2 * 1/2 * 1/2 = 1/8 <=
prisoha [69]3 years ago
4 0
It would be 1/8. 2 to the third is 8, and all three answers correct is one option.
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3 years ago
3. Triangle JKL is shown below. Which of the following is not a true statement about
alina1380 [7]

Option A is true because the sum of angles in a triangle is 180, so we can rule that one out immediately.

We can solve for x for the other 3 options by setting up this equation:

7x+2 + 4x+7 + 8x = 180 | Simplify

19x + 9 = 180 | Subtract 9

19x = 171 | Divide by 19
x=9

Now we can substitute x into all the values:
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Looking at the options again, we can see that A, B, and D are true, leaving C to be false.

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2 years ago
Simplify ..............
larisa86 [58]

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The third response

Step-by-step explanation:

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3 years ago
What is the sales tax on a chair with a price tag of $180, if the tax rate is 5.75%?
Anuta_ua [19.1K]

Answer:

$190.35

Step-by-step explanation:

180 ⋅ 0.0575 = 10.35

Add 180 to 10.35

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8 0
3 years ago
Find the perimeter of the given triangle
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\frac{AB}{DC} = \frac{BP}{CR}

that gives

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3 years ago
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