Answer:
Time taken for the ball to hit the ground back = 3.08 s
Step-by-step explanation:
h(t)= -16t² + 48t + 4
when will rhe object come back to hit rhe ground?
When the ball is at the level.of the ground, h(t) = 0.
0 = -16t² + 48t + 4
-16t² + 48t + 4 = 0
Solving the quadratic equation
t = 3.08 s or t = -0.08 s
Since the time cannot be negative,
Time taken for the ball to hit the ground back = 3.08 s
Hope this Helps!!!
Step-by-step explanation:
Answer:
3400
Step-by-step explanation:
When you round to the tens place you look at the number in the ones place. If it is 4 or less then you keep the tens place the same. If it's 5 or more then you round the tens place up one. Then you make the ones digit a 0.
Since there is a 2 in the ones place in 172, you keep the tens digit the same (170).
Since there is an 8 in the ones place in 18, you round the tens digit up one (20).
Now you multiply.
170×20=3400
I hope that made sense.
Answer:
100
Step-by-step explanation:
We assume that you are concerned with integers, and that you only count a number as "3-digit" if it does not have a zero in the hundreds place.
In order for the number to have a minimum value, the minimum available digit must be used in each number place, starting from the most-significant place--the hundreds place.
The least (non-zero digit) available for the hundreds place is 1.
The least digit available for the tens place is 0.
The least digit available for the ones place is also 0, since it is allowed to duplicate a digit already used.
The least possible 3-digit number using 2 different digits is 100.
Answer:
He does not have enough money
Step-by-step explanation:
Step one:
given data
The total money that Goerge has is $15
Expenses to incure
to see a movie ($9.00) and
to buy a pretzel ($2.65),
a drink ($1.35 ), and
two veggie cups ($1.74 each)= 1.74*2= $3.48
Totoal expenses= 9+2.65+1.35+3.48= $16.48
Step two:
The deficit that George will have is 16.48-15= $1.48
Hence he does not have enough money