Answer:
The first three are functions
Step-by-step explanation:
4th one fails the Vertical line test.
This is the concept of areas and circumference of the solid figures;
The circumference of the cylinder whose radius is 4 m will be given by;
C=2πr
C=2*π*4
C=8π m=25.133 m
Answer: x= -22/5
Step-by-step explanation:
A negative number raised to an odd power IS negative
Answer:
<u>$67.43 altogether</u>
Step-by-step explanation:
A 15% percent tip means 15% OF the bill.
15% of 58.65

You can't really pay $8.7975, so you would round to the nearest one hundredth which is $8.78.
Now you add the $8.78 to $58.65 which will give you $67.43.
I hope that helps!