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2 years ago

Can anyone plz help?

Mathematics

2 answers:

ololo11 [35]2 years ago

5 0

Answer:

Step-by-step explanation:

Angle R= 42

TS is 6

Because Triangle PQR is equal to UTS

Angle R is equal to angle S because of where its placed in the wording

TS is equal to QR

nasty-shy [4]2 years ago

5 0

Answer:

∠ R = 42°, TS = 6

Step-by-step explanation:

Since the triangles are congruent then corresponding sides and angles are congruent, then

∠ R = ∠ S = 42°

TS = QR = 6

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antiseptic1488 [7]

Answer:

0.7061 = 70.61% probability she will have her first crash within the first 30 races she runs this season

Step-by-step explanation:

For each race, there are only two possible outcomes. Either the person has a crash, or the person does not. The probability of having a crash during a race is independent of whether there was a crash in any other race. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

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This means that $p = 0.04$

a) What is the probability she will have her first crash within the first 30 races she runs this season

This is:

$P(X \geq 1) = 1 - P(X = 0)$

When $n = 30$

We have that:

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$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.2939 = 0.7061$

0.7061 = 70.61% probability she will have her first crash within the first 30 races she runs this season

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