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mestny [16]
3 years ago
5

A circle has a circumference of

Mathematics
1 answer:
murzikaleks [220]3 years ago
5 0

Answer:

1249.37 units

Step-by-step explanation:

The circumference of a circle is given as

C=2\pi \: r

Given that the circumference of a circle is 7850 units, we can find the radius by substituting and solving for r.

7850 = 2\pi \: r

r =  \frac{7850}{2\pi}

We divide to obtain:

r = 1249.37

Therefore the radius of the circle is 1249.37 units

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On a certain hot​ summer's day, 477 people used the public swimming pool. The daily prices are 1.50 for children and 2.25 for ad
Akimi4 [234]

Answer:

212 children, and 265 adults

Step-by-step explanation:

To find the number of children and adults, we can set up a systems of equations.

x= number of children

y= number of adults

Equation 1: Price

1.50x+2.25y=914.25

Equation 2: Total number of people

x+y=477

Now, let's solve the equation using substitution.

Rearrange the second equation to solve for one variable.

x+y=477

x=477-y

Now plug x equals into the first equation, and solve for y.

1.50x+2.25y=914.25

1.50(477-y)+2.25y=914.25

715.5-1.50y+2.25y=914.25

715.5+0.75y=914.25

0.75y=198.75

y=265

We just solved for the number of adults. Now let's plug y equals into the second equation to find the number of children.

x+y=477

x+265=477

x=212

7 0
2 years ago
in slope intercept form, what is the equation of the line having a slope of 2 and passing through the point (6,24)?​
Yanka [14]
Answer: y = 2x + 12

Explanation: The slope-intercept form is y = mx + b, where m is slope and b is the y-intercept. Substituting 2 for m, 6 for x, and 24 for y, we have 24 = 2(6) + b. Simplifying, we get that b = 12, so the equation is y = 2x + 12.
4 0
3 years ago
Read 2 more answers
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Nostrana [21]
I hope that my answer is 100 percent correct I think the answer is b
3 0
3 years ago
Read 2 more answers
Calculate the area of the shaded region.
Nostrana [21]

Let A be the area of the sector in the larger circle (radius 12 cm) whose central angle is subtended by the labeled arc with measure 45 deg, and let a be the area of the sector in the smaller circle (radius 8 cm) with the same central angle. The area you want is A-a.

We have

\dfrac A{\pi(12\,\mathrm{cm})^2}=\dfrac{45^\circ}{360^\circ}\implies A=18\pi\,\mathrm{cm}^2

\dfrac a{\pi(8\,\mathrm{cm})^2}=\dfrac{45^\circ}{360^\circ}\implies a=8\pi\,\mathrm{cm}^2

So the area of the shaded region is 18\pi-8\pi=10\pi.

7 0
3 years ago
HELP!! GEOMETRY!! WILL MARK BRAINLIEST!!! NEED WORK SHOWN IF POSSIBLE
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

6 0
3 years ago
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