It means that the two vectors are perpendicular or orthogonal
Answer:
426
Step-by-step explanation:
Subtract 247 from 673 to get 426
Answer:
f(x) = -4x² + 19x - 18
Step-by-step explanation:

i) If it is translated 2 units in the positive x direction, therefore we use f(x-2)

f(x) = 2x² - 9.5x + 6
If it is then translated 3 units in the positive y, we add 3 to the input function to get:

ii) stretched vertically by a factor of 2, we multiply the function by 2 to get:

iii) reflected across the x-axis
we multiply the parent function by –1, to get a reflection about the x-axis.

Answer: 2880
Step-by-step explanation: 144*20=2880 calories.
Answer:
314.2
Step-by-step explanation:
A = π r2
10x10 = 100
100 x 3.1416 (Only a little bit of pi)
314.15927
314.2