Answer: 327.60 dollars
Explanation:
There are about 52 weeks in a year (note that 365/7 = 52.14)
So that means it costs a total of 52*6.30 = 327.60 dollars to run the fridge for a full year.
Answer:
C) 6.9 seconds
Step-by-step explanation:
h = -16t² + 96t + 100
When the ball hits the ground, h = 0.
0 = -16t² + 96t + 100
0 = 4t² − 24t − 25
Solve with quadratic formula:
t = [ -b ± √(b² − 4ac) ] / 2a
t = [ -(-24) ± √((-24)² − 4(4)(-25)) ] / 2(4)
t = [ 24 ± √(576 + 400) ] / 8
t = (24 ± √976) / 8
t = (24 ± 4√61) / 8
t = (6 ± √61) / 2
t = -0.91 or 6.9
Since t must be positive, t = 6.9 seconds.
Answer:
Step-by-step explanation:
<u>Solving in steps</u>
- 3| 4.5 - 2| - 5 |-1.5 -(- 3)| =
- 3 |2.5| -5 |-1.5 + 3| =
- 3*2.5 - 5|1.5| =
- 7.5 - 5*1.5 =
- 7.5 - 7.5=
- 0
Answer:
51⁰
Step-by-step explanation:
alternate angles are equal