We know that for √x to be meaningful, we must have x ≥ 0.
If we square both sides of the inequality, we have
x < 4²
x < 16
Thus the whole solution is
0 ≤ x < 16
The following choices are valid solutions to the inequality:
B. 12
C. 2
E. 5
Square root of three or 1.7320
This is one pathway to prove the identity.
Part 1
Part 2
Part 3
As the steps above show, the goal is to get both sides be the same identical expression. You should only work with one side to transform it into the other. In this case, the left side transforms while the right side stays fixed the entire time. The general rule is that you should convert the more complicated expression into a simpler form.
We use other previously established or proven trig identities to work through the steps. For example, I used the pythagorean identity 
in the second to last step. I broke the steps into three parts to hopefully make it more manageable.
Answer:
C. $994
Step-by-step explanation:
She earns $9 per hours plus 15% commission.
She works 71 hours, total hourly earnings = 9 × 71
= $639
15% commission on $2364 is
= 15/100 × 2364
= $354.6
= $355 ( nearest whole number)
Total hourly earnings with commission
= $639 + $355
= $994
You would first put it into the compounded formula. So it would be 10,000(1+.03/1)^1×5=$11,592.74
