Answer:
Step-by-step explanation:
Cross multiplication can be used but not in the beginning. First x should be isolated.

Now subtract
from both sides

In this stage, cross multiplication can be used.

Answer:
B. -x^2 - x - n = 0.
Step-by-step explanation:
In standard form the terms on the left side are in descending degree order, and the right side equals zero.
Answer:
Fv = 79.63 lb
The total upward force Fv is 79.63 lb
Step-by-step explanation:
We need to determine the total upward force, the y component of force;
Given;
Force F1 = 60.5 lb, 82.4° above horizontal
Force F2 = 37.2 lb, (82.4-50.5)° above horizontal
The vertical component of Force F1 and F2 is;
Fv = 60.5sin(82.4) + 37.2sin(82.4-50.5)
Fv = 79.63 lb
The total upward force Fv is 79.63 lb
Answer:
Step-by-step explanation:

let s double check

and we know that 
so 
so the solution is

A line on this coordinate plane is horizontal when every input (x) has the same output y).
This function always gives the same output with no matter what input you put it in.