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Lina20 [59]
3 years ago
12

Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more de

cimal than in the given radius. 4 inches C = 12.5 inches 12.6 inches 25.1 inches 25.2 inches
Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0

Answer:

25.1\ inches

Step-by-step explanation:

we know that

The circumference of a circle is equal to

C=2\pi r

we have

r=4\ in

substitute

C=2(3.14)(4)=25.1\ in -----> one more decimal than the given radius (nearest tenth)

seraphim [82]3 years ago
4 0
C  = 2 * 3.14 * 4 =   25.1  to nearest tenth ( 1 decimal place)
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4

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A 64-ounce container of sports juice costs $6.50. A 48-ounce container of the same juice costs $4.25. Which juice container is t
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Answer:

The juice container that is a better buy is the 48 ounce container because the price per ounce is lower.

Step-by-step explanation:

In order to determine the juice container that is the better buy, you have to find the one that has a lower cost per ounce by dividing the price of each juice container by the number of ounces it has:

64-ounce container: 6.50/64=0.10

48-ounce container: 4.25/48=0.08

According to this, the answer is that the juice container that is a better buy is the 48 ounce container because the price per ounce is lower.

6 0
3 years ago
A market research team compiled the following discrete probability distribution, where X represents the number of automobiles ow
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Answer:

The standard deviation of X is 0.7

Step-by-step explanation:

We are given the following distribution:

    x:     0        1         2       3    

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We have to find the standard deviation of X.

Formula:

E(x) = \displaystyle\sum x_iP(x_i)\\\\E(x) =0(0.3) + 1(0.5) + 2(0.2) + 3(0.4)\\\\E(x) = 2.1\\\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\\\E(x^2) =0(0.3) + 1(0.5) + 4(0.2) + 9(0.4)\\\\E(x^2) = 4.9\\\\Var(x) = E(x^2) - (E(x))^2 = 4.9-(2.1)^2 = 0.49\\\\\sigma(x) = \sqrt{Var(x)} =\sqrt{0.49} = 0.7

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6 0
3 years ago
How much does 6.1 cubic feet of water weigh in pounds
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Step-by-step explanation:

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Jeremiah has $80,000 in a savings account. The interest rate is 14% per year and is not
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11,200

Step-by-step explanation:

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3 years ago
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