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joja [24]
3 years ago
12

The circumference of a circle is 53.38 centimeters. What is the area in square centimeters. Use 3.14 for ×

Mathematics
1 answer:
Alex Ar [27]3 years ago
4 0
Circumference = πD

53.38 = 3.14D

D = 53.38 ÷ 3.14 = 17

Diameter = 17 cm

Radius = Diameter ÷ 2 = 17 ÷ 2 = 8.5 cm

Area = πr² = 3.14 x (8.5)² = 226.87 cm² (nearest hundredth)

Answer: 226.87 cm² 
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Answer: 13 and 14

Step-by-step explanation: algbra

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2 years ago
Help please simple question
Korvikt [17]

Answer: x ≤ − 3/2

how i got the answer : I used something but it wont let me say ;-; hope it helps!

 

8 0
3 years ago
In science class the students were asked to create a container to hold an egg. They would then drop the container from a window
belka [17]

Answer:

It will take 1.25 seconds to reach the ground.

Step-by-step explanation:

The equation of the containers pathway can be modeled by the equation given below :

h=-16t^2+25

t is time in seconds

It is required to find the time taken by the container to reach the ground. When it reached ground, its height is equal to 0 such that,

h=0\\\\-16t^2+25=0

-16t^2=25\\\\t=\sqrt{\dfrac{25}{16}} \\\\t=1.25\ s

So, it will take 1.25 seconds to reach the ground.

5 0
3 years ago
#2 only <br> And it's to confusing
ipn [44]
They are easy to compare if they all have the same common denominator, then you can easily order them by the magnitude of the numerators...

85/10, -67/10, -56/10, 82/10  so now they are easy to compare...so

-6.7, -28/5, 8.2, 17/2
5 0
3 years ago
HELP HELP ME PLS I AM RUNNING OUT OF TIME!!!! HERE IS MY PROBLEM:
kramer

Answer:

Step-by-step explanation:

To write fractions with a common denominator, you will most likely need to scale some numbers up! I will explain how.

Let's try it with the fractions

2

3

and

3

12

12 is larger than 3, so we will have to multiply the 3 by some number to equal 12. (We are really finding the Least Common Multiple of the two denominators!) To do this, you have to multiply the 3 by 4, because 3x4=12. But now the numerator doesn't match the denominator. When you scale the denominator up, you have to scale the numerator up too! So the 2 must be multiplied by 4 also.

Now you have the following:

8

12

and

3

12

These fractions now have common denominators! Now they're all set for adding or subtracting fractions.

Try another:

2

6

and

3

5

: The least common multiple of 6 and 5 is 30. (the product of the denominators)

Transform each fraction by multiplying by "1":

2

6

⋅

5

5

=

10

30

and

3

5

⋅

6

6

=

18

30

One last problem:

4

9

and

7

6

What is the least common multiple of 9 and 6? Could you use 54? Absolutely, but it is not the LEAST number that you could use. How about 18? YES!

4

9

⋅

2

2

=

8

18

and

7

6

⋅

3

3

=

21

18

Ready to go...

Hope this helped!

7 0
2 years ago
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