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Anit [1.1K]
3 years ago
8

Name the property used to make the conclusion. If 13=x, then x=13.

Mathematics
1 answer:
Marina86 [1]3 years ago
7 0
That property would be the Symmetric<span> Property of </span><span>Equality</span>
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For the function defined by y = StartFraction 1 Over x squared EndFraction, if x is doubled, what is the effect on y?
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Answer:

a. y is quartered.

Step-by-step explanation:

y=1/x^2

when x is doubled, the equation becomes:

y=1/(2x)^2=1/(4x^2)

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Jacqueline reads 25 pages every night. Which graph correctly displays y, the total number of pages that Jacqueline has read afte
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6 0
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Sever21 [200]
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Which of the following is needed to solve the area of a square
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Step-by-step explanation:

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5 0
3 years ago
Each of 12 refrigerators of a certain type have been returned to a distributor because of the presence of a high pitched oscilla
Bond [772]

Answer:

a) P(X = 5) = 0.04397

b) The probability that X exceeds its mean by more than 1 standard deviation = P(z > 1) = 0.159

Step-by-step explanation:

a) This question can be solved using binomial distribution function formula

Using Binomial,

P(X = x) = ⁿCₓ pˣ qⁿ⁻ˣ

n = total number of sample spaces = number of refrigerators to be examined before getting 5 refrigerators with defective compressors = 6

x = Number of successes required = 5

p = probability of success = probability of examining a refrigerator with defective compressor out of the total 12 = 5/12 = 0.4167

q = probability of failure = probability of examining a refrigerator without defective compressor out of the total 12 = 1 - (5/12) = 7/12 = 0.5833

P(X = 5) = ⁶C₅ (0.4167)⁵ (0.5833)⁶⁻⁵

P(X = 5) = ⁶C₅ (0.4167)⁵ (0.5833) = 1(0.01256)(0.5833) = 0.04397

P(X = 5) = 0.04397

b) The probability that X exceeds its mean by more than 1 standard deviation represents Z-score of z > 1

Using the normal distribution tables,

P(z > 1) = 1 - P(z ≤ 1) = 1 - 0.841 = 0.159

3 0
3 years ago
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