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Marat540 [252]
3 years ago
14

Select the property of equality used to arrive at the conclusion. If 5x = 20, then x = 4. the division property of equality the

addition property of equality the subtraction property of equality
Mathematics
2 answers:
babymother [125]3 years ago
8 0

Answer: The division property of equality

Step-by-step explanation:

The division property of equality says that if we divide both sides of an equation by the same number then both the sides are still remains equal.

The given statement : - If 5x = 20, then x = 4.

By using the division property of equality the division operation is applied on both the sides of the equation such that both sides are divide by 5 to arrive the given conclusion .

Hence, the property of equality used to arrive at the conclusion = The division property of equality

pav-90 [236]3 years ago
7 0
The division property of equality because you divide 20 by 5 to get the x value. 

put me as brainliest answer

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4 years ago
Andre builds a form for a new cement step in the shape of a rectangular prism. The form he builds is 40 and 1/2 inches long, 10
posledela

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3240 in^3

Step-by-step explanation:

Step one:

given data

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Length 40 and 1/2 inches long,

Depth 10 inches deep,

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8 0
3 years ago
Let C be between D and E. Solve for x <br> DC = 5x + 8<br> CE = 3x + 5<br> DE = 61
morpeh [17]
DE/2 = 30.5
CE=30.5
DC=30.5

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8 0
3 years ago
Suppose that you construct a 95% confidence interval for the population mean, using some sample values, and you obtain the range
mel-nik [20]

Answer:

Step-by-step explanation:

Hello!

You have the 95% CI for the mean [50; 70]

The amplitude for this interval is a= 20 and its margin of error is d= 10.

If the interval was constructed as X[bar] ± margin of error

Where the margin of error is the product of the statistic value due to the standard deviation of the distribution.

If you reduce the confidence level, the value of the statistic will be also reduced, so you would expect a shorter margin of error and amplitude for the 90% CI

Symbolically: d= Z_{1-\alpha/2} * (δ/√n) ⇒ d↓= Z_{1-\alpha/2}↓ * (δ/√n) if d↓ ⇒ a↓

50 to 100 has an a= 50 and d= 25

70 to 90 has an a= 20 and d= 10

60 to 80 has an a= 20 and d= 10

55 to 95 has an a= 40 and d= 20

65 to 85 has an a=20 and d= 10

None of the given intervals corresponds to a 90% interval for the same sample as the first interval 50 to 70.

Another detail to keep in mind is that the intervals for the population mean are centered in the sample mean. From the first interval you can deduce that it is centered in X[bar]= 60 (Upper bond - margin of error = sample mean), if the other intervals were constructed with the same sample values, they should all be centered in 60.

I hope you have a SUPER day!

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3 years ago
A jar contains four black buttons and five brown buttons. If five buttons are picked at random, what is the probability that at
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189/572=33.042%

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