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Valentin [98]
3 years ago
6

What is the standard deviation for the data set? 138, 129, 145, 134, 142, 159, 153, 142, 127 Express your answer as a decimal to

the nearest tenth.
Mathematics
1 answer:
garik1379 [7]3 years ago
4 0
10.5 is the standard deviation 
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New York City is building an outdoor skating rink that is circular. If the diameter of the circle is 92 meters, what is the area
Oksi-84 [34.3K]
Hello there! The formula for finding the area of a circle is π * r². The radius is 1/2 of the diameter. The diameter is 92 meters ½ of 92 is 46. So we will raise 46 to the second power. 46² is 2,116. Now, let's multiply that by 3.14 to ffind the area of the circle. 2,116 * 3.14 is 6,644.24. There. The area of the ice skating rink is 6,644.24 square feet.
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3 years ago
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If ƒ(x) = 2x, then ƒ -1(x) =
barxatty [35]

Answer:

f^{-1}(x) = \frac{x}{2}

Step-by-step explanation:

let y = 2x

Rearrange making x the subject

divide both sides by 2

\frac{y}{2} = x

changing y back into terms of x

f^{-1}(x) = \frac{x}{2}

8 0
3 years ago
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A camera company routinely ships cameras that have 4 defective cameras for every 800 shipped. Bradley works at a photo shop that
garri49 [273]
From the information in the problem, the ratio of defective cameras to cameras shipped is \frac{4}{800}. Reducing this ratio, we get the simplified form of

\frac{4}{800}\div \frac{4}{4}= \frac{1}{200}

which, incidentally, gives us our answer. We have 1 defective camera for every 200 cameras shipped.
6 0
3 years ago
A 6.50% coupon bond with 18 years left to maturity is offered for sale at $1,035.25. What yield to maturity [interest rate] is t
Basile [38]

Answer:

The yield to maturity is 6.3974%

Step-by-step explanation:

The computation of the yield to maturity is as follows

Given that

NPER = 18 × 2 = 36

PMT = $1,035.25 × 6.50% ÷ 2 = $33.65

PV = $1,035.25

FV = $1,000

The formula is shown below:

=RATE(NPER;PMT;-PV;FV;TYPE)

The present value comes in negative

AFter applying the above formula, the yield to maturity is

= 3.1987% × 2

= 6.3974%

Hence, the yield to maturity is 6.3974%

7 0
3 years ago
you are working as an assistant to a chef. the chef has 8 cups of berries and will use 2/3 cup of berries for each dessert he ma
mamaluj [8]
Zero because assistants don't know anything and only the chef can cook


jk



ok so how many 2/3's are in 8?

easy way to compar is
make 8 into a fraction over 3
8/1 times 3/3=24/3

how many 2/3 are in 24/3
how many 2's are in 24
12

answer is 12 desserts
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3 years ago
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