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Andreyy89
3 years ago
11

What property of equality is. PQ+QR=QR+RS, then PQ=RS​

Mathematics
1 answer:
djyliett [7]3 years ago
8 0

Answer:

Substitution

Step-by-step explanation:

1. PQ = RS --------Given

2. PQ + QR = QR + RS ---------Addition Postulate

3. PQ + QR = PR;

QR + RS = QS -------Segment Addition

4. PR = QS ------- Substitution

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Alenkasestr [34]
V1 is equal to V2

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6 0
3 years ago
I need help with number one and thank you for your help
sveta [45]

Answer: B

Step-by-step explanation: The first X was 1. If you add 1 too the 1/2 in the equation, its 1 & 1/2. theres only one graph that has 1 & 1/2, and its B

5 0
2 years ago
Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.950.950, point, 95 pro
Vinvika [58]

Answer:

40.1% probability that he will miss at least one of them

Step-by-step explanation:

For each target, there are only two possible outcomes. Either he hits it, or he does not. The probability of hitting a target is independent of other targets. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

0.95 probaiblity of hitting a target

This means that p = 0.95

10 targets

This means that n = 10

What is the probability that he will miss at least one of them?

Either he hits all the targets, or he misses at least one of them. The sum of the probabilities of these events is decimal 1. So

P(X = 10) + P(X < 10) = 1

We want P(X < 10). So

P(X < 10) = 1 - P(X = 10)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 10) = C_{10,10}.(0.95)^{10}.(0.05)^{0} = 0.5987

P(X < 10) = 1 - P(X = 10) = 1 - 0.5987 = 0.401

40.1% probability that he will miss at least one of them

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Likurg_2 [28]

Answer:

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Step-by-step explanation:

See the steps below:)

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3 years ago
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Answer:

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Step-by-step explanation:

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8 0
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