Answer: 
Step-by-step explanation:
Given: A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror.
The pipe is located 8 inches from the vertex of the mirror.
Assume the vertex is at the origin.
If the parabola opens upwards
then the coordinates of focus= (0,8)
We know that equation of parabola with focus (0,a) and open upards is of the form (vertex=(0,0)) is
Substitute the value of a=8 in equation, we get
Therefore, equation of the parabola that models the cross section of the mirror is
If the interest rate is compounded daily, we have the effective interest rate calculated as:
r = (1 + 0.1022/30)^30 -1
r = 0.1074 or 10.74%
Therefore, the effective interest rate if the compounded daily rather than monthly is 10.74-10.22 = 0.52 points higher.
Answer:
The amount deductible by Shelley is $2,929
Step-by-step explanation:
Using the table below as the missing information:
Airfare to New Jersey $ 2,180
Meals $238
Lodging in New Jersey $432
Rental car $198
All the above expenses are fully deductible by Shelley except the meal which is half deductible.
Half of the meal expenses is:
= 238 / 2 = $119
So the amount deductible by Shelley is:
2180 + 119 + 432 + 198
= 2929
Therefore, the amount deductible by Shelley is $2,929
Answer:
8
Step-by-step explanation:
That is the quetion that sal khan explaind in the vid BOI
The answer is B
To visualize this, think of the first line as saying "As x approaches negative infinity, f(x) (or just y) approaches __". As the graph goes left, it goes up: so, as x approaches negative infinity, f(x) approaches infinity. As the graph goes right, it goes down: so, as x approaches infinity, f(x) approaches negative infinity.
