Answer:
4
Step-by-step explanation:
The principal square root is the positive square root
sqrt(16) = ±4
taking the positive square root
B
Step-by-step explanation
This is because the 'principal square root' means the positive square root of a certain number, and so √16 = 4 × 4, making 4 the answer. This has a certain term for it as √16 could equal -4 also (-4 × -4 = 16).
326.87
y = 3x + 21
Use the given slope and point to substitute into the point-slope formula
3.75
12t = 45
t = 3.75
I hope this is correct
