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Reil [10]
2 years ago
15

Which of the following sets of numbers could be the side lengths of a right triangle?

Mathematics
1 answer:
disa [49]2 years ago
4 0

Answer:

9, 40, and 42

Step-by-step explanation:

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43/21 decimal rounded to the nearest hundredth
Step2247 [10]

Answer:

2.05

Step-by-step explanation:

4 0
2 years ago
Which ratio is equivalent to 1 : 5?
zhenek [66]

Answer:

2:10

Step-by-step explanation:

multiply both numbers by the same number(ie. 2,3,4) and the rotio will still be the same

3 0
2 years ago
Read 2 more answers
How do you solve this
Katyanochek1 [597]
Add it together. You find area with base times height!!!
4 0
3 years ago
Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follow
guajiro [1.7K]

Answer:

a) x = 1.52

b) s = 1.16

Step-by-step explanation:

We have that:

5 students watched 0 movies.

9 students watched 1 movie.

5 students watched 2 movies.

5 students watched 3 movies.

1 student watched 4 movies.

(a) Find the sample mean x.

Sum divided by the number of students. So

x = \frac{5*0 + 9*1 + 5*2 + 5*3 + 1*4}{5 + 9 + 5 + 5 + 1} = \frac{38}{25} = 1.52

(b) Find the approximate sample standard deviation, s.

Standard deviation of the sample.

Square root of the sum of the squares of the values subtracted from the mean, divided by the sample size subtracted by 1. So

s = \sqrt{\frac{5*(0-1.52)^2 + 9*(1-1.52)^2 + 5*(2-1.52)^2 + 5*(3-1.52)^2 + 1*(4-1.52)^2}{24}} = \sqrt{\frac{32.24}{24}} = 1.16

3 0
2 years ago
A lawn in the shape of a trapezoid has an area of 1,800 square meters. The length of one base is 50 meters, and the length of th
Alona [7]

9514 1404 393

Answer:

  40 m

Step-by-step explanation:

The area is given by the formula ...

  A = 1/2(b1 +b2)h

Using the given values, we can find h to be ...

  1800 = 1/2(50 +40)h

  3600 = 90h . . . . . . . . . multiply by 2

  40 = h . . . . . . . . . . . divide by 90

The width of the lawn is 40 meters.

6 0
3 years ago
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