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3 years ago

Can someone answer number 5 plz

Mathematics

1 answer:

Georgia [21]3 years ago

5 0

Answer:

C) 113 m^2

Step-by-step explanation:

diameter/2 =radius = 12/2 = 6

area = 6^2(3.14) = 6x6x3.14 = 113 m^2

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Of the 145 students who took a mathematics exam, 80 correctly answered the first question, 81 correctly answered the second ques

jasenka [17]

Answer: 64

Step-by-step explanation:

the Kids that answered correct in any of questions 1 and 2 got at least one right so subtract the highest number which is 81 students by all the general amount of them, 145 that’s 64.

3 0

3 years ago

What temperature is 12%C hotter than 16%C

devlian [24]

The temperature that 12%C is hotter than 16%C is 4%C

6 0

3 years ago

Will give brainllest to who gets this right

mr Goodwill [35]

Answer:

3. 48

4. 1.8

Step-by-step explanation:

For the first one you multiply six by eight which is forty-eight

For the second problem you divide by eight since you are downscaling and 15/8 is 1.8

3 0

3 years ago

At the U.S. Open Tennis Championship, a statistician keeps track of every serve that a player hits during the tournament. The st

fgiga [73]

Answer:

The speed of 65 mph is an outlier in the distribution of the player's serve speeds

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100 mph

Standard Deviation, σ = 10 mph

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Outlier on basis of z-score:

Any z-score greater than 3 or less than -3 is considered to be an outlier.
This rule of thumb is based on the empirical rule.

Calculation of z-score:

$x = 65\Rightarrow z = \dfrac{65-100}{10} = -3.5\\\\x = 110\Rightarrow z = \dfrac{110-100}{10} = 1\\\\x = 120\Rightarrow z = \dfrac{120-100}{10} = 2$

Thus, the speed of 65 mph is an outlier in the distribution of the player's serve speeds as the corresponding z-score is less than -3.

4 0

3 years ago

When you convert 100 feet per second to inches per second will there be more or less than 100 inches?

Ulleksa [173]

Just multiply 100 feet by 12 and you get 1200 inches per second, so more.

7 0

3 years ago