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Basile [38]
1 year ago
14

The radius of a circle is 3cm. What is the area of the circle? Use 3.14 for pie.​

Mathematics
1 answer:
vekshin11 year ago
6 0

Answer: 28.26 square cm

Step-by-step explanation:

A=\pi r^{2}=\pi(3)^{2} \approx 3.14(3)^{2} \approx \boxed{28.26 \text{ cm}^{2}}

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Please help me. Should I know this?
slega [8]

you don't need to know this for real life situations but for school you do need to know it, i dont know how to do this but here's a link to the same question you have but it's explained on how to solve it

https://www.wyzant.com/resources/answers/499729/fireworks_can_go_up_to_1000_feet_in_around_3_seconds_what_s_is_it_s_average_vertical_speed_in_feet_per_second_and_miles_per_hour

((Also i'm a fellow ARMY as well =) ))

7 0
3 years ago
Vinnie drives his car 210 miles and has an average of a certain speed. If the average speed had been 3mph more, he could have tr
Pachacha [2.7K]

Answer:

35 mph

Step-by-step explanation:

time = distance / speed

210 miles and has an average of a certain speed

t = 210 / s

If the average speed had been 3mph more, he could have traveled 228 miles in the same length of time

t = 228 / (s + 3)

Set equal

210 / s = 228 / (s + 3)

Cross multiply

210s + 630 = 228s

Subtract 210s from both sides

630 = 18s

Divie both sides by 18

35 = s

35 mph

5 0
2 years ago
Read 2 more answers
Recently, the largest watermelon on record weighed 269 pounds. how many ounces did it weigh?
kirill115 [55]
The watermelon weighed 4,304 ounces.
 Important Information:
16 ounces= 1 pound
269 pounds x 16 ounces = 4,304 ounces

3 0
3 years ago
Read 2 more answers
Answer?......................
erica [24]

Answer:

22

Step-by-step explanation:

6( n^2 +2)

-----------------

n

Let n = 3

6( 3^2 +2)

-----------------

3

Parentheses first

6( 9 +2)

-----------------

3

6( 11)

-----------------

3

Top of the fraction next

66

-----

3

Divide

22

7 0
1 year ago
Help find the angle of k please
Rudiy27

Answer:

k+27=180(co-interior angle)

k=180-27=153°

7 0
3 years ago
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