X^3+x and x=2
=(2)^3+2
=8+2
=10
Answer:
6.06 km
Step-by-step explanation:
The information given in the question can be represented by the three sides if a right angled triangle.
Let the direct line from the airplane to the start of the runway be represented by x. So that applying the appropriate trigonometric function, we have;
Cos θ = 
Cos 
= 
0.9903 =
⇒ x = 
= 6.0588
x = 6.06 km
The direct line from the airplane to the stat of the runway is 6.06 km.
This is classic Pythagorean solving:
Side^2 + Side^2 = Hypotenuse^2
The hypotenuse is the longest side of a triangle, and it connects the leg and the base usually. In this triangle, 18 is the hypotenuse -- so since we are solving for the unknown side, the equation is:
a^2 + 5.7^2 = 18^2 -- now solve
a^2 = 18^2 - 5.7^2
a^2 = 291.51
a = sqrt(291.51)
a = 17.07 -- because height is the square root of the difference of the squares of 18 and 5.7
The answer is choice B.
Answer:
B. A payday loan for $1500 that is due in 10 days with a fee of $90, since it has the shorter period
Your answers are correct!!
