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erik [133]
2 years ago
12

What is the measure of ∅?A. 2.5 π radiansB. 2.5 radiansC. 4 radiansD. 5 radians​

Mathematics
1 answer:
natka813 [3]2 years ago
4 0

Answer:

C. 4 radians

Step-by-step explanation:

20=\frac{\pi (Ctrl.Angle)(5)}{180}

Ctrl Angle = ∅

∅ = \frac{(20)(180)}{5\pi } =\frac{3600}{5\pi } =\frac{720}{\pi }

in radians:

∅ = \frac{720}{180} =4

Hope this helps

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A mixture of pulverized fuel ash and Portland cement to be used for grouting should have a compression strength of more than 130
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Answer:

The null hypothesis is: u >= 1300 KN/m^2

And the alternative hypothesis is:

u < 1300 KN/m^2.

Step-by-step explanation:

The null hypothesis describes hat there is no difference or assiciation between variables of a specific population or that it is a particular average value while the alternative hypothesis states otherwise.

In this case study, the null hypothesis is: u >= 1300 KN/m^2

And the alternative hypothesis is:

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3 years ago
Claire is going to invest $2,600 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what
Bogdan [553]

Answer:

Rate of interest r = 2.83 % (Approx.)

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
A line has a slope of -6. Which of the following could describe two points on the line?
MrRa [10]

Answer:

A is the answer just did the quiz

5 0
3 years ago
What is -2 = 5 / (2x+3)
LUCKY_DIMON [66]

Answer:

x = -11/4

Step-by-step explanation:

Given that:

-2 = 5 / (2x+3)

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"-" sign will alter the inner signs

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Dividing both sides by -4

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i hope it will help you!

3 0
3 years ago
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