Steps to finding the inverse:
1. Replace f(x) with y.
2. Swap x and y.
3. Solve the equation for y.
f(x) = 2x - 10
1. y = 2x - 10
2. x = 2y - 10
3. Add 10 to both sides
x + 10 = 2y
Divide both sides by 2
(x + 10)/2 = y
y = (x + 10)/2
f^-1(x) = (x + 10)/2
To solve the problem we will use this equation where,
d will be distance.
x is the speed of the plane without tailwind.
y is the speed of the wind affecting the plane.
Going to Philadelphia the speed of the plane affected by wind will be x-y=220 miles/hr
Coming back with a tailwind, the speed of the plane will be x+y= 280 miles/hr.
since time = distance / speed, t1 =d/220 and t2 = d/280
and since the total time traveled is 6.5hrs
d/220 + d/ 280 = 6.5hrs
d = 800.8 miles x 2 (back and forth trip) the answer is 1601.6 miles
Answer:
D] f(n) = f(n − 1) + (−7)
Step-by-step explanation:
since you already know is an arithmetic series, you have to find the common difference.
87 - 94 = -7
80 - 87 = -7
73 - 80 = -7
the formula for the nth term is f(n) = f(n-1) + d
where f(n-1) is the previous term and d is the common difference, so if youu substitute you get:
f(n) = f(n-1) + d
f(n) = f(n-1) + (-7)
Answer:
Meghan cannot claim any amount as a medical deduction.
Step-by-step explanation:
Given that:
Amount paid by Meghan for insurance = $9212
Meghan's medical expenses = $5700
Her medical insurance covers 80% of these expenses
Meghan's adjusted gross income = $65,432
Her medical expenses that are not covered under medical insurance is:
= $1140
Similarly, 7.5% of her gross income is;
= 65,432 × (7.5/100)
=$4907.4
Since $1140 < $4907.4
The amount of $1140 does not exceed $4907.4
Thus, Meghan cannot claim any amount as a medical deduction.
Answer:
12
Step-by-step explanation:
