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svetlana [45]
4 years ago
9

Which of the following reasons completes the proof in the picture?

Mathematics
1 answer:
miv72 [106K]4 years ago
3 0
The correct answer here is A because it asks to prove congruence. Since we know line ST is the BISECTOR of PR, we know that Q is the middle point and indeed PQ and RQ are congruent lines.
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Regular heptagonSolve for <span>area

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3 years ago
Rename each decimal as a percent:
lyudmila [28]
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7 0
3 years ago
What is the angle of a triangle
Neko [114]

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8 0
3 years ago
A factory received a shipment of 11 hammers, and the vendor who sold the items knows there are 2 hammers in the shipment that ar
zhenek [66]

Question:

If a sample of 2 hammer is selected

(a) find the probability that all in the sample are defective.

(b) find the probability that none in the sample are defective.

Answer:

a Pr = \frac{2}{110}

b Pr = \frac{72}{110}

Step-by-step explanation:

Given

n = 11 --- hammers

r = 2 --- selection

This will be treated as selection without replacement. So, 1 will be subtracted from subsequent probabilities

Solving (a): Probability that both selection are defective.

For two selections, the probability that all are defective is:

Pr = P(D) * P(D)

Pr = \frac{2}{11} * \frac{2-1}{11-1}

Pr = \frac{2}{11} * \frac{1}{10}

Pr = \frac{2}{110}

Solving (b): Probability that none are defective.

The probability that a selection is not defective is:

P(D') = \frac{9}{11}

For two selections, the probability that all are not defective is:

Pr = P(D') * P(D')

Pr = \frac{9}{11} * \frac{9-1}{11-1}

Pr = \frac{9}{11} * \frac{8}{10}

Pr = \frac{72}{110}

8 0
3 years ago
Jack typed 45 words in 1 minute. how many minutes will it take jack to type 990 words
Wittaler [7]

Answer:

22 minutes

Step-by-step explanation:

990/45=22

8 0
3 years ago
Read 2 more answers
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