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mart [117]
3 years ago
11

A circle has a diameter of 24 units. What is the area of the circle to the nearest hundredth of a square unit?

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
5 0

Answer:

452.39

Step-by-step explanation:

A=(pi)r^2

A=3.14(12)^2

A=452.39

Lina20 [59]3 years ago
4 0

Answer: The area of the circle is 452.16 square units.

Step-by-step explanation:

To find the area of a circle you need to use the area of a circle formula. The formula is A= π x r^2.

π= 3.14

r= 12

The r is radius which is half of the diameter. When you apply the formula you get :

A = 3.14 x 12^2

A= 3.14 x 144

A= 452.16

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Which equation can be used to solve the problem?
const2013 [10]

Answer:

10 * 50%

Step-by-step explanation:

It is simple

just do 10/100 * 50

and you have your answer

3 0
3 years ago
Hi, please help me out :)) thank you
r-ruslan [8.4K]

Answer:

d =32

Step-by-step explanation:

\sqrt{7d+1}-4=11\\\\\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\\\sqrt{7d+1}-4+4=11+4\\\\Simplify\\\sqrt{7d+1}=15\\\\\mathrm{Square\:both\:sides}:\quad 7d+1=225\\7d+1=225\\\\\mathrm{Solve\:}\:7d+1=225:\\\quad d=32

4 0
3 years ago
Read 2 more answers
The Christmas Bird Count (CBC) is an annual tradition in Lexington, Massachusetts. A group of volunteers counts the number of bi
Lerok [7]

Answer:

(5.216) mean = 61.71

(5.217) standard deviation = 8.88

(5.218) P(X>=60) = 0.9238

(5.129) L = 79, U = 69

(5.130) P(X> or = U) = 0.7058

Step-by-step explanation:

The table of the statistic is set up as shown in attachment.

(5.216) mean = summation of all X ÷ no of data.

mean = 432/7 = 61.71 birds

(5.217)Standard deviation = √ sum of the absolute value of difference of X from mean ÷ number of data

S = √ /X - mean/ ÷ 7

= √551.428/7

S = 8.88

(5.218) P (X> or = 60)

= P(Z> or =60 - 61.71/8.8 )

= P(Z>or= - 0.192)

= 1 - P(Z< or = 0.192)

= 1- 0.0762

= 0.9238

(5.219)the 15th percentile=15/100 × 7

15th percentile = 1.05

The value is the number in the first position and that is 79,

L= 79

85th percentile = 85/100 × 7 = 5.95

The value is the number in the 6th position, and that is 69

U = 69

5.130) P(X>or = 60)

= P(Z>or= 69 - 61.71/8.8)

= P(Z> or = 0.8208)

= 1 - P(Z< or = 0.8209)

= 1 - 0.2942

= 0.7058

3 0
3 years ago
Please Answer Number 3 ! Thank You !!!
Troyanec [42]

Hello from MrBillDoesMath!

Answer:

Choice A, "n"

Discussion:

n/4  + n/4 + n/4 + n/4 = 4 (n/4) = n

which is choice A

Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


4 0
3 years ago
Use the photo to answer
crimeas [40]

Answer:

14. What is the sequence of the complementary strand of DNA to this 12 base strand? A-T-G-A-T-C-T-C-G-T-A-A *

1 point

15. What is the messenger RNA strand that would be made during transcription of this 12 base strand of DNA? T-A-C-C-C-C-G-A-G *

Step-by-step explanation:

7 0
3 years ago
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