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gizmo_the_mogwai [7]
3 years ago
5

The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2. What is the domain of this

function?
A. all positive real numbers
B. all real numbers
C. all positive real numbers including 0
D. all real numbers excluding fractions
Mathematics
2 answers:
stepan [7]3 years ago
7 0
It would be C hope that helps
grandymaker [24]3 years ago
3 0
C.all positive real numbers including 0
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the population of Watesville decreases at a 1.6% per year.If the population was 62,500 in 2014 what will it be in 2020
vichka [17]

The population in 2020 will be 57657.5 approximately

<u>Explanation:</u>

Given:

Population in 2014, P = 62,500

Rate of decrease, r = 1.6%

Population in 2020, Q = ?

Number of years between 2014 to 2020 = 5 years

Population in 2020 = P(1 - \frac{r}{100} )^t

Substituting the value we get:

Q = 62500(1- \frac{1.6}{100})^5\\ \\Q = 62500 ( 0.92252) \\\\Q = 57657.46

Therefore, the population in 2020 will be 57657.5 approximately

7 0
3 years ago
I don’t understand how to do 1 a.
nikitadnepr [17]

a. 6 x 5 = 30

b. 5.6 x 5 = 28

a. 20 devided by 5 = 5.6

b. 36 devided by 5 = 7.2 (i dont know, that sounds like a pretty tall person to me)

3 0
3 years ago
A 156-inch board is cut into two pieces. One piece is three times the length of the other. Find the
cluponka [151]

Answer:

The shorter piece is 39 inches long.

Step-by-step explanation:

ratio = 3 : 1

3+1=4

156/4 = 39

just to check:

39 x 3 = 117 (the lenght of the longer piece)

117 + 39 =156

hope this helps

brainliest plx

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7 0
3 years ago
What is 30 divide by 4?
Sedaia [141]

Answer:

30 ÷ 4 = <em>7.5</em>

Step-by-step explanation:

This means that:

7.5 fits into 30 4 times

Example:

7.5    +   7.5     +    7.5    +     7.5

 \______\______/_______/

                    30

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>
7 0
4 years ago
The results of a survey asking 500 people about their favorite ice cream flavor are shown in the table.
brilliants [131]

chocolate:  experimental 100 theoretical 165

vanilla: experimental 100 theoretical 135

Mint chip: experimental 100 theoretical 100

banana:experimental 100 theoretical 30

<em>BRAINLYEST PLZ PLZ PLEASE </em>

7 0
3 years ago
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