Answer:
1308.02cm^2
Step-by-step explanation:
Finding Radius = D/2
40.82/2 = 20.41 centimetres
Finding Area of a circle
E = πr^2
= 3.14 x 20.41^2
= 416.57 π
= π x 416.5681 = 1308.02cm^2
Surface area: 4*pi*r^2 = 4*pi*5^2= 4*25*pi = 100pi or <span>314.16</span>
Write an equation.
T = Total money made
M = miles driven
4 + 2.25m
T = 7.3*2.25 + 4 + 2.25*4.8 + 4
T = 8 + 7.3*2.25 + 2.25 * 4.8
4.8 * 2.25 = 10.8
7.3 * 2.25 = 16.425
T = 16.425 + 8 + 10.8
T = 35.225
So, the total amount of money he made was $35.25.
We know that
[area of larger triangle]=[scale factor]²*[area of smaller triangle]
[scale factor]=√[area of larger triangle/area of smaller triangle]
[scale factor]=√[49/16]-----> 7/4
Part A) <span>what is the ratio of the corresponding side lengths?
the ratio </span>of the corresponding side lengths is equals to the scale factor
the answer Part A) is
the ratio of the corresponding side lengths is 7/4
part B)what is the ratio of the perimeters?
the ratio of the perimeters is equals to the scale factor
the answer Part B) is
the ratio of the perimeters is 7/4
Answer:
a) 66
b) 45
Step-by-step explanation:
We have 12 horses and after the first race 2 of them have to be eliminated
that condition is equal to consider that 10 horses will be available for the second race.
The number of possiblities we have for the first race is the combination of 12 horses in group of 10
C¹²₁₀ = 12!/ (2!)* (12-2)! = 12*11/2 = 66
For the second race
C¹⁰₈ = 10! / 8! * (10-8)! = 10*9/ 2 = 45
