Answer:
616
Step-by-step explanation:
22 * 28 = (25 - 3)(25 + 3) = 25^2 - 3^2 = 625 - 9 = 616
the x s are the independent variable so any direct change to them is changing the independent. like the second one has -5 on the x
Answer:
28.26
Step-by-step explanation:
For this, we can simply use the pi times r squared because we have the radius.
simplify pi to 3.14, so we can do 3.14 times 3 squared.
we get 9x 3.14, which is 28.26.
The Correct answer is d because 7 times 6 is 42 and divide that by two is 21
Answer:
b
Step-by-step explanation: