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Talja [164]
3 years ago
13

how do i find if the area is 1976 square inches, what are the radius, diameter, and circumference of the circle?

Mathematics
1 answer:
blagie [28]3 years ago
3 0
Hello,
The area of the circle=
πr^2
or A=πr^2
1976=πr^2
Divided π or 3.14 from both side
1976/3.14=πr^2/π
629.3≈r^2
Square root from both side to get
r≈25.1 inches
d=2r
d=2(25.1)
d≈50.2 inches
C=πd
C=50.2π or C≈157.628 inches. Hope it help!
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Hey another one so sorry T^T
konstantin123 [22]

Answer and Step-by-step explanation:

-6 and -10 are the answers.

This is because these numbers are less than -5, so they would work when plugged in for h in the inequality.

<u><em>#teamtrees #PAW (Plant And Water)</em></u>

8 0
2 years ago
Read 2 more answers
A 99% confidence interval for the difference between two proportions was estimated at 0.11, 0.39. Based on this, we can conclude
sladkih [1.3K]

Answer:

\hat p_1 -\hat p_2 \pm z_{\alpha/2} SE

And for this case the confidence interval is given by:

0.11 \leq p_1 -p_2 \leq 0.39

Since the confidenc einterval not contains the value 0 we can conclude that we have significant difference between the two population proportion of interest 1% of significance given. So then we can't conclude that the two proportions are equal

Step-by-step explanation:

Let p1 and p2 the population proportions of interest and let \hat p_1 and \hat p_2 the estimators for the proportions we know that the confidence interval for the difference of proportions is given by this formula:

\hat p_1 -\hat p_2 \pm z_{\alpha/2} SE

And for this case the confidence interval is given by:

0.11 \leq p_1 -p_2 \leq 0.39

Since the confidence interval not contains the value 0 we can conclude that we have significant difference between the two population proportion of interest 1% of significance given. So then we can't conclude that the two proportions are equal

4 0
3 years ago
Please help!!!!!!!!!!!!!!!!!!!!!
sleet_krkn [62]
It would be c I think
7 0
3 years ago
For the following reports about statistical studies, identify the following items (if possible). If you can't tell, then say so-
Ira Lisetskai [31]

Answer:

  1. Population: Soil around a former waste dump
  2. Parameter: Concentrations of toxic chemicals
  3. Sample frame: Accessible soil around dump
  4. Sample: 16 soil samples
  5. Method: Unclear
  6. Bias: Uncertain if soil samples were randomly chosen

Step-by-step explanation:

The above answer explanation can be more clear by understanding that the population is the soil around the former waste dump and the samples are 16   which were taken from  EPA.In report, the method is unclear too.

5 0
3 years ago
HELP REAL QUICK PLS TY
Veronika [31]

Answer:

Step-by-step explanation:

the area is L x W so its 42cm

7 0
3 years ago
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