Answer:
4/10 : 1/25
4/10 / 1/25 = 4/10 x 25/1 = 100/10 = 10.
10 can also be written as 10:1, so A is correct.
Hope this helps!
Answer: Our Cost function is discontinuous at every integer after x>10.
Step-by-step explanation:
Since we have given that
For the first 10 minutes , the service charges = $0.30
Let the number of additional minute be 't'.
Amount charge for each additional minute = $0.05
Using the greatest integer function:
So, Cost C of a call in terms of time 't' minutes would be

As we know that Greatest integer is discontinuous at every integer.
So, our Cost function is discontinuous at every integer after x>10.
Answer:
form x = 6 ± √14
Step-by-step explanation:
I used mw so I'm sorry if worng
Answer:
a) 9 slices
b) 56.25%
Step-by-step explanation:
a) 16 pieces - 4 = 12
12 pieces - 3 = 9
b) 100% - 25 = 75%
75% - 8.75 = 56.25%
brainliest would be nice