A quick way to do this is by recalling the fact that
, so the largest value that
alone (for any real value of
) can take on is 1.
This means
, and so
.
So the maximum value of this function is 7.
Answer:
f(x)=5x^2 + 9
Step-by-step explanation:
all numbers are odd
What is the discount percentage
Answer:
increase = 37.38 cm²
You'd like the first way because it took less effort and less chance of a miscalculation.
Step-by-step explanation:
first way:
(just work with the difference in height)
(0.7 x 8.7 x 2) + (0.7 x 18 x 2) = 37.38 cm²
second way:
old total lateral surface area = (31 x 8.7 x 2) + (31 x 18 x 2) = 1655.4
new total lateral surface area = (31.7 x 8.7 x 2) + (31.7 x 18 x 2) = 1692.78
increase = 1692.78 - 1655.4 = 37.38 cm²
Cone's volume is third of cylinder's volume, so 321*1/3=107 cubic units. Answer A. is correct.
