Answer:
2
Step-by-step explanation:
2x+2=?x+13
Let x=2
2x+2=2x+13
Subtract 2x from each side
2 =13
This is never true so there is no solution
A(t) = 500(1.0325)^t
500 is the initial deposit, t=0, A(0)=500
3.25% is the interest rate
t is in years
Let's go through the choices.
After 1 year ... A(1)=500. Don't check; it's A(0) that equals 500, A(1) is bigger.
The rate is 1.03%. Don't check; the base being exponentiated is 1 plus the rate.
Rate is 3.25%. TRUE that's why we have 1 + 0.0325 as the base.
Rate is 5%. Don't check.
Only one right answer.
Answer:
y=.12x+20
Step-by-step explanation:
The flat rate for the ride is $20, so that will be added on no matter how far you go. The distance is actually extra information in this problem, as it doesn't actually ask for you to solve, so ignore the 50 miles from the airport. It is $0.12 per mile, meaning that actually does depend on the number of miles travelled, so it must be the x coefficient. This leaves you with y=.12x+20.
If a line is perpendicular to -2x, the slope has the opposite reciprocal. In this case, the opposite reciprocal of -2x is 1/2x. Then you plug in the coordinates in the y = mx + b format:
5 = 1/2 (-2) + b
Then you solve for b and you should get b = 6
