Answer:
He does not have enough money to buy the hat.
Step-by-step explanation:
First find out how much he spent on the ticket:
He spent $62 on the ticket, so he has $90 - $62 = $28 remaining. Now find out how much of that he spent at the concession stand:
He spent $12 at the concession stand, so he has $28 - $12 = $16 remaining. He does not have enough to buy the $18 hat.
B.
I think B will make more B make more sense because you say he gets 75 a week.
It should be written in the form ax²+bx+c=0,
so you meed to move -8 to the left side
2x²+6x+8=0
the number in front of x² is a
the number in front of x is b
the number without x is c,
so a=2, b=6,c=8
Let's find the remaining distance they must travel.
Total distance-distance covered
150-60=90 mi
Now, we need to find the average speed they need to travel per hour to reach the destination in 2.5 (2 1/2) hours.
90 mi/2.5 h=36 mi/h
They must travel at an average speed of 36mph to reach their destination in 2 1/2 hours.
Check:
60+36(2.5)
=120 mi
Answer:
(a) Is not possible
(b) It is possible
(c) It is possible
(d) Is NOT possible.
Step-by-step explanation:
(a)
Is not possible, notice that for any function such that
you would have that
And for, lets say -3,3 you have that
therefore is not possible to find a function that is one to one.
(b)
It is possible. Take the following function
since is periodic it will take positive and negative numbers and if you multiply by each period will become bigger and bigger.
(c)
It is possible. Take the function
Then
and is one to one.
(d)
It is NOT possible because and that will always be positive.