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Virty [35]
4 years ago
9

For finding the circumference of a circle: can an arc determine the circumference of a circle, yes or no

Mathematics
1 answer:
Ivanshal [37]4 years ago
3 0

Answer:

yes , an arc can indeed determine the circumference of a circle

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How many solutions does the following equation have? 2x - 6 = 6 + 2x
maks197457 [2]

Answer:

no solutions

Step-by-step explanation:

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5 0
4 years ago
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Clarence measures the diameter of each tennis ball and a bag with a standard ruler. Unfortunately he uses the ruler and correctl
ollegr [7]
Refer to the figure below.

Assume that there are n correct measurements
x_{i} , \, i=1,2, \, ... \, n
Because each measurement has an error of 0.2 in, the actual measurements are
x_{i} + 2

From the figure, the analysis indicates that the correct mean is
μ = 3 in = 3*2.54 cm = 7.62 cm
The correct standard deviation is 
2.934 in = 2.934*2.54 cm = 7.45 cm


Answer:
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7 0
3 years ago
-13 is 4 less than. A number n
Kobotan [32]

Answer:

no

Step-by-step explanation:

7 0
3 years ago
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Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250 surveyed, 98 reported owning a t
SashulF [63]

Answer:

The true proportion for the population would be between 0.386 and 0,398 (0.392±0.06) in 95% confidence level.

Step-by-step explanation:

Confidence interval for true population proportion can be computed as p±ME where

  • p is the sample proportion ( \frac{98}{250}=0.392)
  • ME is the margin of Error from the mean

and margin of error (ME) can be found using the formula

ME=\frac{z*\sqrt{p*(1-p)}}{\sqrt{N} } where

  • z is the corresponding statistic in 95% confidence level (1.96)
  • p is the sample proportion ( \frac{98}{250}=0.392)
  • N is the sample size (250)

Using the numbers

ME=\frac{1.96*\sqrt{0.392*0.608}}{\sqrt{250} } ≈ 0.06

Then the true proportion for the population would be p±ME = 0.392±0.06 in 95% confidence level.

6 0
3 years ago
9. Sofija buys a bracelet for $14.50 plus 8% tax.
solniwko [45]

Answer:

$12.96

Step-by-step explanation:

Before Tax Price: $12.00

Sale Tax: 8.00% or $0.96

After Tax Price: $12.96

3 0
3 years ago
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