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alex41 [277]
3 years ago
5

The diameter of a circle 8 centimeters. What is the circles area?use 3.14 for n

Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0

Answer:

50.24 cm^2

Step-by-step explanation:

Area = Pi r^2

A = (3.14) (4^2)

A = 50.24 cm^2

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Will mark brainliest, 60 points
il63 [147K]

Answer:

21 C

22 B

23 169

Step-by-step explanation:

21 3m mean 3 times a certain number

22 the negative make the 4 go negative and the -5 positive

23 i did 5^2-4^2= 9

then 6^2 divided by 9+9= 13 i took the 9 from the 5^2 problem then divided it by 6^2

then 13 x 13 = 169

8 0
3 years ago
The sales tax for an item was $24.50 and it cost $350 before tax. Find the sales tax rate.
Karo-lina-s [1.5K]
Find the number that when multiplied with 350 will give you 24.5. This number happens to be .07 or in terms of sales tax, 7%.
3 0
3 years ago
A circle with a radius of 12 inches has an arc that measures 8 pi inches. Find the measure of the central angle determined by th
ivanzaharov [21]
We know that

[length of a circle]=2*pi*r
r=12 in
[length of a circle]=2*pi*12--------------> 24pi in

if 360° (full circle)--------------------> has a length of 24pi in
X-------------------------------------------> 8pi

X=8pi*360/24pi-----------> 120°

the answer is 120°

3 0
3 years ago
What does it mean when they say what is the mean of a data set?
astra-53 [7]

Answer:

the mean of a set is the average of the numbers in that set. How you get the mean is you add up all the numbers then you divide by how many numbers are in the set.

Step-by-step explanation:

example is 1,2,3,4,5,6,7

the mean of this set is 4

3 0
3 years ago
Read 2 more answers
How many solutions does the equation have? 6h−(9−3h)=6−3(h+2)
erica [24]
Hi there,

It only has 1 solution

Hope this helps :)
3 0
4 years ago
Read 2 more answers
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