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3 years ago

Which set best describes the number(-16)?

Mathematics

1 answer:

algol133 years ago

8 0

-16 is a negative whole number.

Therefore, the <span>set of numbers that best describes -16 is the set of integers.</span>

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What is the value of. X in this equation<br><br> 1.54x+6.814=8.2

sveticcg [70]

Answer:

x=0.9

Step-by-step explanation:

1. You first have to isolate the x term so you subtract 6.814 from both sides which makes the equation 1.54x=1.386

2. Then, to isolate "x", you divide 1.54 on both sides to get rid of the 1.54 which makes x=.9

5 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

3 years ago

Kiyo used to wire fencing to form a border around a circular region in his backyard. If the radius of the circular region was 5

kakasveta [241]

Answer:

The total length of the border is $31.4\ yd$

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

$r=5\ yd$

assume

$\pi=3.14$

substitute

$C=2(3.14)(5)=31.4\ yd$

6 0

3 years ago

The perimeter of the square at the left is 48 inches

andrey2020 [161]

The perimeter of the square is 48

There are 4 equal-length sides to the square, making each side 12 in. in length

to find the area, multiply two sides of the perimeter

12 x 12 = 144

Perimeter: 48
Side: 12
Area: 144

hope this helps

8 0

3 years ago

The weight of water is 62 1/2 Ib per cubic foot. Water that weighs 200 lb will fill how many cubic feet? simplify its division b

otez555 [7]

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3 years ago