Answer:
x≥ -3
Step-by-step explanation:
The domain is the values that x can take
g(x) = sqrt( x+3)
This must be greater than or equal to zero
x+3 must be greater than or equal to zero
x must be greater than or equal to -3
x≥ -3
We first find value of tax in dollars.
The difference between the two prices is: 23. 54 - 22 = 1.54
Therefore the sales tax in dollars is 1.54
The tax % will be (amount of tax / original cost price ) × 100
(1.54 / 22) × 100 → (0.07) × 100 = 7
So the tax rate is 7%
We can double check the answer.
7 % of 22 → (7/100) × 22 → 0.07 × 22 = 1.54
22 + 1.54 = 23.54
Answer:
x+y=1500
10.50x+7.50y=13950
multiply the first one by -7.5 to eliminate y
-7.5x-7.5y=-11250
3x=2700
x=900 adults for $9450
y=600 children for $450
Step-by-step explanation:
Answer:
g(5) = 120
Step-by-step explanation:
to evaluate g(5) , substitute x = 5 into g(x)
g(x) = x³ - x , then
g(5) = 5³ - 5 = 125 - 5 = 120