Answer:
Correct option: 2 -> sqrt(37)
Step-by-step explanation:
To solve this problem, we just need to use the law of cosines. This law is used to find the third side of a triangle, when we have the two other sides and the angle between them.
The equation of the law of cosines is:
c^2 = a^2 + b^2 - 2 * a * b * cos(C)
So, we have that:
c^2 = 7^2 + 3^2 - 2 * 7 * 3 * (1/2)
c^2 = 49 + 9 - 21
c^2 = 37
c = sqrt(37)
Correct option: 2
Bottom answer 2/5 and 7/8
Answer:
7 gal 3 qt is 31 quarts.
Step-by-step explanation:
Given:
7 gal 3 qt to quarts.
Now, convert the measurement as indicated.
So, the value of 1 gallon = 4 quarts.
Thus , the 7 gal(gallons) = 7 × 4 = 28 quarts.
And 3 qt (quarts) = 3 × 1 = 3 quarts.
So,


Therefore, 7 gal 3 qt is 31 quarts.
Answer:
A=30 B=90 C=60
Step-by-step explanation:
A=30 C=60 B=90