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taurus [48]
3 years ago
6

Jessie designed a sculpture that is shaped like a circle. The circumference of the sculpture is 10π meters. Which measurement is

closest to the area of the sculpture in square meters? 31.4 m² 78.5 m² 62.8 m² 314 m²
Mathematics
2 answers:
SpyIntel [72]3 years ago
7 0

Answer:

31.4

Step-by-step explanation:

ikadub [295]3 years ago
6 0

I believe that it is 31.4, but please correct me if I'm wrong.

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Three-fourths of the employees at a bookstore came to a staff meeting. Less than 24 employees were at the meeting. The inequalit
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Answer:

The correct option is 4.

Step-by-step explanation:

It is given that the three-fourths of the employees at a bookstore came to a staff meeting. Less than 24 employees were at the meeting.

Let the total number employees be e.

Three fourth of the total employees is \frac{3}{4}e, the total number of employees at the meeting were less than 24.

\frac{3}{4}e

Multiply 4 both sides.

\frac{3}{4}e\times 4

3e

Divide both sides by 3.

e

Therefore the value of e is less than 32.

In a number line as we approach towards left the the value of integers decreases.

Since the value of e is less than 32, therefore the solution graph is from negative infinity to 32.

Since 32 is not included in the solution set, therefore there is an open circle on 32.

Option 4 is correct.

3 0
3 years ago
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Solve for t.
saw5 [17]

Answer:

1/3 is the answer I got I'm not sure if the top answer is a typo but that's the answer I got

4 0
3 years ago
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Suppose we are testing the null hypothesis H 0 mu=20 and the alternative H iu =20 , normal population with sigma=6 A random samp
cupoosta [38]

Answer:

The value of the test statistic is z = -1.5

Step-by-step explanation:

The formula for the test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the statistic, \mu is the mean, \sigma is the standard deviation and n is the number of observations.

In this problem, we have that:

\mu = 20, X = 17, \sigma = 6, n = 9

So

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{17 - 20}{\frac{6}{\sqrt{3}}}

z = -1.5

The value of the test statistic is z = -1.5

8 0
4 years ago
A moterboat that ravels with a speen of 20km/hour in still water has traveld 20 km against the current and 180km with the curren
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Answer:

10 kph

Step-by-step explanation:

Find the speed of the current of the river.

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8(c^2 - 20c + 100) = 0

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The speed of the current of the river is 10 km/hour.

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3 years ago
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I think the answer is 700 as 700*10=7,000.
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