Answer:
4104.79 Seconds or about 1.14 Hours
Step-by-step explanation:
26mi = 41842.9m
100/9.81 = 41842.9/x
41842.9 x 9.81 = 100x
410478.849 = 100x
x = 4104.78849
I believe the answer is B for this question
Answer:
AB ≈ 14.3
Step-by-step explanation:
We're given <em>two sides </em>(BC and CA) and an <em>angle </em>(C)<em> between them</em>; the <em>law of cosines </em>is a good tool for calculating the third side of the triangle here. To remind you, the law of cosines tells us the relationship between the sides of a triangle with side lengths a, b, and c:

Where C is the angle between sides a and b. c is typically the side we're trying to find, so on our triangle, we have

Substituting these values into the law of cosines:

Answer:
Step-by-step explanation:
discriminant=5²-4×1×7=25-28=-3<0
no real number solution.