3 years ago

Which statement is true about a line and a point?

1 answer:

4 0

B. A point is a location and a line has many points located on it. This website explains it if you still don't understand. http://www.mathopenref.com/tocs/pointstoc.html

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morpeh [17]

Answer:

n>25/3

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was

Ivan

Answer: $\pm0.1706$

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of $\alpha:0.05$ : $z_{\alpha/2}= 1.96$

Sample mean : $\overline{x}=2.5$

Standard deviation : $\sigma= 0.5$

We assume that this is a normal distribution.

Margin of error : $E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706$

Hence, the margin of error is $\pm0.1706$

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3 years ago

What is the area of and the perimeter of this triangle?

Veseljchak [2.6K]

Answer:

A = 40 square yards; P = 33 yards.

Step-by-step explanation:

Perimeter of the triangle

= ( 8 + 15 + 10)

= 36 yards.

Area of the right angled triangle

= 1 /2 * 10 * 8

= 40 square yards.

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3 years ago

Which expression represents "5 times the sum of 4 and y?"

laila [671]

5(4+y) is the correct answer, you would be adding 4 and y then multiplying the sum by 5

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3 years ago