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Tresset [83]
3 years ago
7

Samira ran around a park loop that was one-third mile long. she ran around the loop nine times. samira says she ran 9/3 miles. h

er brother amal says she ran 3 miles. who is correct?
Mathematics
1 answer:
Alexeev081 [22]3 years ago
4 0
1/3 mile x 9 times = 3

They both are 9/3 simplifies to 3
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the spinner is divided in to 8 equal sections. if the arrow lands on a number, what is the probability that it will land on a 1
Tcecarenko [31]

25% there are 8 sections and there are two you are trying to land on making it 2/8=25%

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Stefan is measuring the angles of a triangle. He measures the first angle and gets a measure of 80° What does he know about the
zlopas [31]
The answer would be B, since the other two just have to equal 100.
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4 years ago
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(CO 3) Sixty-five percent of employees make judgements about their co-workers based on the cleanliness of their desk. You random
Gekata [30.6K]

Answer:

The 0 and 1 outcomes would be considered unusual.

Step-by-step explanation:

We can define as usual outcomes, the ones that fall between \bar{x}\pm 3s.

According to a binomial distribution, s value is

s=\sqrt{n*p*(1-p)}\\s=\sqrt{8*0.65*(1-0.65)}\\s=\sqrt{1.82}=1.35

The expected value out of a 8 people sample is

\bar{x}=p*n=0.65*8=5.2\\

Then, our interval of usual values lies between

\bar{x}- 3s\leq x \leq \bar{x} +3s\\\\5.20-3*1.35\leq x \leq 5.20+3*1.35\\1.15\leq x \leq 9.25

We can conclude that 0 and 1 (the results that lie outside of the interval) are unusual.

6 0
3 years ago
The angles of a quadrilateral measure 80, 100, 100, 80 in this order what kind of quadrilateral has this shape what attributes h
Harrizon [31]

Answer:

Isosceles trapezoid

Step-by-step explanation:

-An isosceles trapezoid is also sometimes called a convex quadrilateral.

-It properties include:

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  • It has to obtuse alternating with each other after which a pair of acute angles alternate with each other i.e 80°, 80°,100°,100°
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8 0
4 years ago
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Kipish [7]

Answer:

2.5

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Add up all the numbers, then divide by the total amount of the numbers

1+2+3+4=10

10/4=2.5

3 0
3 years ago
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