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3 years ago

A water truck is filling a swimming pool. Choose true or false

Mathematics

1 answer:

Zepler [3.9K]3 years ago

4 0

Answer:

False

Step-by-step explanation:

Because if theres just I truck with water it won't fill the whole pool

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Not including four play in games, there are 64 teams in the tournament. once a team loses one game they are eliminated. how many

Natasha_Volkova [10]

Every time teams play with each other (assuming there are no draws) half of them win
and the others get eliminated so
64÷2=32 32 games played and 32 teams eliminated
32÷2=16 16 games played and 16 teams eliminated
16÷2=8 the same goes here
8÷2=4 and here
4÷2=2 .
2÷2=1 .

32+16+8+4+2+1=63 games

7 0

3 years ago

Yosef purchased a new sweater. The total price of the sweater, including the 8% sales tax, was $16.74. What was the retail cost

Yanka [14]

Answer:

15.40, lol yeet, this one's EZ

3 0

3 years ago

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sasho [114]

Answer:

3 a 20 - class yoga package for 260$

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3 years ago

14. Subtract: 5 - 3 1/3. A. 313 B.223 C. 12/3 D.23

exis [7]

Answer:

The answer is 1 $\frac{2}{3}$

The work is shown on the picture.

Step-by-step explanation: Hope this helps and mark brainliest if ya want :)!

6 0

3 years ago

A researcher is going to estimate the average typing speed of students of a college. He selects a random sample of 20 students a

Stella [2.4K]

Answer:

The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 20 - 1 = 19

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.9}{2} = 0.95$ . So we have T = 1.7291

The margin of error is:

$M = T\frac{s}{\sqrt{n}}$

In which s is the standard deviation of the sample and n is the size of the sample. For this question, we have $s = 5, n = 20$ . So

$M = T\frac{s}{\sqrt{n}}$

$M = 1.7291\frac{5}{\sqrt{20}}$

$M = 1.933$

The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.

8 0

3 years ago