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SCORPION-xisa [38]
4 years ago
15

Please help me idk this

Mathematics
2 answers:
ankoles [38]4 years ago
4 0

Answer:

3.14

Step-by-step explanation:

pir^2

3.14 x 1^2

3.14

Slav-nsk [51]4 years ago
4 0

Answer:

A=3.14 sq. in.

Step-by-step explanation:

A= πr^2

a= 3.14*1^2

a= 3.14*1

a= 3.14 square inches

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Mrs. Isabelle is making paper and plastic foam animals for her first-grade class. She is calculating the amount of wasted materi
PSYCHO15rus [73]
We are given square with side length l. The largest circle that we can cut from that square has diameter equal to that side. This circle is called inscribed circle.

When cutting circle from square paper we will be left with some extra paper. Area of that extra paper can be calculated using formula:
area_of_extra_paper = area_of_square - area_of_circle

Now we can insert formulas:
A =  l^{2} -  ( \frac{l}{2} )^{2}  * \pi  \\ A=l^{2} -   \frac{l^{2}}{4} * \pi  \\ A=l^{2} (1- \frac{ \pi }{4} )

This is area of extra paper when we cut one circle. When we cut multiple circles we have:
A=N*l^{2} (1- \frac{ \pi }{4} )
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N = number of circles
This formula is roughly:
A=0.785*N*l^{2}
6 0
3 years ago
PLEASE HELP ASAP
Elena L [17]
36.08 = 8.8t

The distance is a positive because it shows the total distance traveled

36.08 = 8.8t
4.1=t
3 0
4 years ago
Solve the equation t/2+7=15
r-ruslan [8.4K]

Answer:

15-7=8

8×2=16

t=16

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8 0
4 years ago
Read 2 more answers
You have a balance of $4,500 on your credit card. The interest rate is 12% (1% per month). The late payment fee is $40. You miss
Nikitich [7]

Answer:

multiplying 4500 by .01. This gave me $45 as in interest. Then I added the payment fee, $40. 40+45 is 85,

Step-by-step explanation:

5 0
3 years ago
The mean of a normally distributed set of data is 53 with a standard deviation of
drek231 [11]

Answer:

2 standard deviations of the mean. so, 41 to 65

Step-by-step explanation:

from the empirical rule we know that for 95% we are in 2 standard deviations of the mean. so:

53- 6- 6 = 41

*2 minus 6s because 2 standard dev. with the mean

53 + 6 + 6 = 65

8 0
3 years ago
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