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Ivahew [28]
3 years ago
14

How to find the exact answer of the area and circumference

Mathematics
1 answer:
Paha777 [63]3 years ago
6 0

Answer:

\pi \\ is irrational so any attempt to use 3.14... is never EXACT...

do not try to convert it ... if it asks for exact..

write 81\pi \\  or 9 \pi \\  etc. don't put in 63.62 like answers

Step-by-step explanation:

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PLZZZZZZ I NEED HELP IM SO TIRED PLZZZZZZZZ
ipn [44]

Answer:

8.99

Step-by-step explanation:

\left|-46.09+51.64\right|+\left|18.08-21.52\right|

\left|-46.09+51.64\right|=5.55

\left|18.08-21.52\right|=3.44

5.55+3.44

8.99

8 0
2 years ago
A box contains 2 plain pencil and 2 pens A box contains 3 color pencils and crayons . One item from each box is chosen random Wh
Alex17521 [72]

make a probability tree it will really help so much

4 0
3 years ago
A Statistics class is estimating the mean height of all female students at their college. They collect a random sample of 36 fem
Butoxors [25]

Answer: = ( 63.9, 66.7)

Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 65.3

Standard deviation r = 5.2

Number of samples n = 36

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

65.3 +/-1.645(5.2/√36)

65.3 +/-1.645(0.86667)

65.3+/- 1.4257

65.3+/- 1.4

= ( 63.9, 66.7)

Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)

4 0
3 years ago
Tanji spends $8 on ride tickets ($1 each) and gives an equal number of tickets to 8 friends. How many tickets does each friend g
pshichka [43]
Because each ticket costs 1 and she spends 8 she would be buying 8 tickets

She has 8 friends so each one would get 1 ticket 

The answer is 1
8 0
3 years ago
Read 2 more answers
A line passes through the points (4, -1) and (2, 3). What is the slope of the line?
WINSTONCH [101]

Answer:

-2

Step-by-step explanation:

[3-(-1)]/[2-4] = -2

4 0
3 years ago
Read 2 more answers
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