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swat32
3 years ago
5

A circle has a radius of 3.5. What is the circumference? Use 3.14 for Pi.

Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:21.98

Step-by-step explanation:

It is because the formula for the circumference of a circle is 2 x 3.14 x r so I do the 2 x 3.14 and I get the 6.28 and then 6.28 x 3.5(radius) is 21.98.

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Alja [10]

Answer:

503.75, 504.75, 505.75, 506.75

Step-by-step explanation:

x+(x+1)+(x+2)+(x+3)=2021

4x+6=2021

4x=2015

x=503.75

so it would be

503.75+504.75+505.75+506.75= 2021

8 0
3 years ago
A random variable x is uniformly distributed over the interval (-4, 6). Find the standard deviation of x. (Note: Uniform distrib
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Answer:

The standard deviation of x is 2.8867

Step-by-step explanation:

The standard deviation of variable x that follows a uniform distribution is calculated as:

s = \sqrt{\frac{(b-a)^{2} }{12} }

Where (a,b) is the interval where x is defined.

So, replacing a by -4 and b by 6, the standard deviation is:

s = \sqrt{\frac{(6-(-4))^{2} }{12} }

s = \sqrt{\frac{(10)^{2} }{12} }

s=\sqrt{\frac{100}{12} }

s=\sqrt{8.3333}

s=2.8867

3 0
4 years ago
Alex bought 7.25 pounds of produce. If the produce was priced at $2.12 per pound, how much did Alex pay for the produce? How muc
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3 years ago
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P varies directly with s and t. If p=10 when s=-8 and t=12, find t when p=6 and s=15
Umnica [9.8K]
This hurts my Brain too much... Ima just guess and say 13
6 0
3 years ago
If f(x)=1/6x+12, then f^-1(x)=<br> PLEASE HELP
Finger [1]

f(x)=\dfrac{1}{6}x+12\to y=\dfrac{1}{6}x+12


Change x to y, and y to x.


x=\dfrac{1}{6}y+12


solve for y:


\dfrac{1}{6}y+12=x\ \ \ |-12\\\\\dfrac{1}{6}y=x-12\ \ \ \ |\cdot6\\\\y=6x-72


Your answer is:


f^{-1}(x)=6x-72

5 0
3 years ago
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