Using the Law of Cosine formula, you can find the measurement of the third side of a scalene or isosceles triangle.
C^2 = A^2 + B^2 - 2AB(cosC)
C^2 = 10^2 + 13^2 - 2(10)(13)(cos78degrees)
C^2 = 100 + 169 - 2(10)(13)(cos78degrees)
C^2 = 100 + 169 - 2(10)(13)(0.21)
C^2 = 100 + 169 - 54.06
C^2 = 269 - 54.06
C^2 = 214.94
C^2 = square root of 214.94
C = 14.66
The answer for this question would be 14.7 ft. :D
Answer:
18
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
45% = 0.45
45/100 = 0.45
As you said, (x,3) = (2,3)
So x = 2
Thank you very much.
Answer:There are 72 heads (chicken and rabbit) and 200 legs. How many chickens and rabbits are present totally?
Step-by-step explanation
There are 72 heads (chicken and rabbit) and 200 legs. How many chickens and rabbits are present totally?
Legs of a chicken = 2
Legs of a rabbit = 4
Total heads = 72
Total legs= 200
Let's assume that each of them has minimum 2 legs.
So 72*2 = 144 legs
Remaining legs: 200-144= 56
These remaining legs belong to rabbit because rabbit has 4 legs each.
2*Rabbits= 56
Rabbits= 56/2 = 28
Out of 72, 28 are rabbits. So there are 72-28= 44 chicken.
