Answer:
3x4=12
12 coins in her collection
Step-by-step explanation:
25x4=100%
B) side = sqrt(64)= 8, which is a rational number. Indeed, an integer. Same with perimeter: 4 times 8 = 32.
Answer:
The slope of the function is ²/₃ and since the second derivative is zero, the concavity doesn't exist.
Step-by-step explanation:
Given;
x = 6t
y = 4t - 3
point t = 4

The slope of the function is ²/₃
take the second derivative of the function;
the second derivative will be zero since the first derivative is a constant value.

Since the second derivative is zero, the concavity doesn't exist.
666 I have no clue ask people around you or the teacher for more help