All categories

2 years ago

4. Calculate the mean of the data set {22, 34, 37, 23, 45, 21, 29, 37}. Round to the nearest tenth.

Mathematics

1 answer:

Simora [160]2 years ago

6 0

Answer:

31.0

Step-by-step explanation:

The mean of a given set of data is the ratio of the sum of the data to the number of units that make up the data set. It is also called the average of the data set.

Given the data set {22, 34, 37, 23, 45, 21, 29, 37}. There are 8 numbers in the set. The total of these numbers

= 22 + 34 + 37 + 23 + 45 + 21 + 29 + 37

= 248

The mean = 248/8

= 31

You might be interested in

27. The diameter of a music CD is 12 centimeters. Find the circumference

atroni [7]

Diameter is 2 times the radius. Radius is 6.
Circumference is 2(pi)(radius)
Circumference is approximately 37.7cm

8 0

3 years ago

a man has 25 coins in his pocket all of which are dimes and quarters. if the total value of his change is 430 cents, how many di

valentinak56 [21]

Answer:16 quarters and 3 dimes

Step-by-step explanation:

430/25 (Quarters) = 17

25x16

(Because you can’t have 17 since 25x17=425 leaving no room for dimes.)

=400

Now 430-400=30

30 more cent is needed,

30/10(Dime value)

Is 3, so the answer is the man has 16 quarters and 3 dimes

7 0

3 years ago

The parabola y=x^2 is reflected across the x axis and then scaled vertically by a factor of 1/8.

tekilochka [14]

ANSWER

The new equation is:

$y = - \frac{1}{8} {x}^{2}$

EXPLANATION

The given parabola has equation,

$y = {x}^{2}$

This is the parent function.

When we reflect this parabola in the x-axis and then scaled vertically by a factor of 1/8.

The new equation becomes:

$y = - \frac{1}{8} {x}^{2}$

3 0

2 years ago

What is the area of triangle ABC to the nearest tenth of a square meter?

Andrej [43]

we are given with an isosceles triangle with two congruent sides equal to 70 inches and an angle of 36 degrees in between the sides. We are asked for the area of the triangle. The formula is A = 0.5 * ab sin theta where a and b are the sides. The area is equal to 1440. 07 in2.

7 0

3 years ago

Find the constant of proportionality for the table of values and write in the form y = kx

sveta [45]

Answer:

Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Number of lemons used is denoted by 'y'.

Number of glasses of lemonade is denoted by 'x'.

As we can observe that ,

$\frac{6}{24} = \frac{8}{32} = \frac{7}{28} = \frac{2}{8} = \frac{4}{16} = \frac{1}{4} \\$

so we can write i as

$\frac{x}{y} = \frac{1}{4}$

By cross multiplication

So, if write it in the form y=kx,

It will be y=4x.

7 0

2 years ago

Read 2 more answers