Answer:
the answer is c
Step-by-step explanation:this is the pythagorean theorem so it has to be 14 x 16 and if the long side is not a perfect number then leave it with a square root
Answer:
387 km
Step-by-step explanation:
The length of AC, b can be obtained using the cosine rule ; using the cosine relation:
b² = a² + c² - 2ac CosB
b² = 250² + 185² - 2(250*185) Cos125
b² = 62500 + 34225 - 92500 * −0.573576
b² = 96725 + 53055.820
b² = 149780.82
b = sqrt(149780.82)
b = 387.01527
b = 387 km (nearest whole number)
Calculate the length of the outside of the tire, which is the circumference of the tire.
Circumference = 2 x radius x PI
Circumference = 2 x 0.45 x 3.14 = 2.83 meters.
It travels 2.88 meters per second.
Divide the circumference by the amount of travel:
2.83 / 2.88 = 0.98 seconds to make one revolution.