Answer:
Not proportional.
Step-by-step explanation:
A proportional relationship has a constant of proportional which can be formed by a ratio between any y and x values of the function. The constant will be the same every time.
The ratio y/x is 25/1, 40/2, 55/3, 70/4, and 85/5. These simplify to 25, 20, 13.33, etc. These are not the same values. This is not proportional.
Answer is B. 330 that’s is how many ways you can choose 3 or 4 toppings
Answer:
a. 6; no
Step-by-step explanation:
(3, 1, 4)·(2, 8, -2) = (3)(2) +(1)(8) +(4)(-2) = 6
The result is non-zero, so the vectors are NOT perpendicular.