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Mrac [35]
4 years ago
8

What is the radius of 81π square inches​

Mathematics
1 answer:
MrRa [10]4 years ago
3 0
It is 9 inches because the formula for the area of a circle is πr2 where the r represents the radius of the circle

The pi can be canceled out =

πr2 and 81 π leaving with

R2 and 81

The r2 represents a square number. So square root 81 and you would result in 9 as your answer
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Janice thinks that 20 hundredths is equivalent to 2 thousandths because 20 hundreds is equal to 2 thousands. Use words and a pla
sattari [20]
20 hundredths = 20/100 = 0,2
2 thousandths = 2/1000 = 0,002

20 hundreds = 20 * 100 = 2000
2 thousands = 2 * 1000 = 2000

20 hundreds is equal to 2 thousands, however 20 hundreths is not equal to 2 thousandths. 2 in the 0,2 is 100 times greater than 2 in 0,002.
4 0
3 years ago
"Bill’s nominal income in 1990 was $1,009 per month. The CPI had a value of 149 in 1990 and had a value of 192 in 2017. What is
Bas_tet [7]

Answer:

$677.18

Step-by-step explanation:

Data provided in the question:

Bill’s nominal income in 1990 = $1,009 per month

CPI value in the year 1990 = 149

CPI value in the year 2017 = 192

Now,

The Consumer price index ( CPI ) is given as :

CPI = \frac{\textup{Cost of basket in the current year}}{\textup{Cost of basket in the base year}}\times100

thus,

for the given case of year 1990

149 = \frac{\textup{1,009}}{\textup{Real income in the year 1990}}\times100

or

Real income in 1990 = \frac{\textup{1,009}}{\textup{149}}\times100

or

Real income in 1990 = $677.18

4 0
3 years ago
Simplify the following expression. 95 + 5[14 - (3 + 8)] A. 140 B. 190 C. 220 D. 110
kherson [118]

Answer:

The answer is D. 110

Step-by-step explanation:

You add 8 and 3 and get 11 first because in parentheses, and then you subtract that by 14, which will give you 3. Then you multiply 3 times 5 to get 15 and add that to 95 to get your answer. Hope this helps!

5 0
3 years ago
Read 2 more answers
Someone plz help me
konstantin123 [22]

Answer:

temperature

Step-by-step explanation:

it dropped by 15 so it subtracted 15. - 15

3 0
3 years ago
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in 2010 the population of rhode island was approximately 1053000. if the population decrease was 0.3% find the population of rho
maks197457 [2]
1049841 1053000x.003=3159 1053000-3159=1049841
4 0
3 years ago
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