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Klio2033 [76]
3 years ago
5

What is the circumference of a circular swimming pool with a diameter of 6 ½ feet? (use 22 over 7 as pi)

Mathematics
1 answer:
trapecia [35]3 years ago
5 0

Answer:

10.21 feet.

Step-by-step explanation:

circumference of circle with diameter d is given by \pi d

where r is the radius of the circle.

_____________________________

given

diameter = 6 1/2 = 13/2 feet

\thus, circumference of circle is calculated as following

circumference = \pi *13/2 = 22/7 * 13/2\\circumference = 11*13/7*2 = 143/14 = 10.21

Thus, circumference of given circle is 10.21 feet.

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Zip codes for the Houston area are five digit numbers with 7 as the first 2 digits of each zip code. The third digit can be 0, 3
djyliett [7]

Answer:

There are 400 possible zip codes in the Houston area

Step-by-step explanation:

Here, we want to calculate the possible number of zip codes in the Houston area

We have 5 digits to form

77 is the first two digits ( this is fixed)

For the third digit, we are selecting 1 number out of 0,3,4 or 5

This means 4 C 1

The remaining digits can be any digits

We have 0-9, a total of 10 digits

The first will be 10 C 1 and the second last digit too is 10 C 1

So the number of possible zip codes will be;

4 C 1 * 10 C 1 * 10 C 1

= 4 * 10 * 10 = 400 possible zip codes

6 0
3 years ago
(15. Construct Arguments is 0.3 exponent 4 equal to<br> 0.9 exponent 2? Explain.
padilas [110]
No.
0.3^4 or 0.3x0.3x0.3x0.3= 0.0081
0.9^2 or 0.9x0.9=0.81
These are not equivalent.
5 0
3 years ago
Hellpppppppopppppppppppppp meeeeeeeeee pleassssse
Ilya [14]
????I don’t get what u need help with
5 0
3 years ago
UNSER
Neko [114]

Answer:

2100

Step-by-step explanation:

30%×3000=900.

3000-900=2100

6 0
3 years ago
If a jelly bean machine contains 16 pink jelly beans, 34 blue jelly beans, 24 black jelly beans, and 26 purple jelly beans, what
Viefleur [7K]
Well out of 100 jelly beans 24 are black so it would be a 24 out of 100 chance to pick a black jelly bean. But that can be simplified down to a 6 out of 25 chance. So your answer is 6/25. Hope this helped. ;)
4 0
3 years ago
Read 2 more answers
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