<span>How does the volume of an oblique cylinder change if the radius is reduced to 2/9 of its original size & the height is quadrupled?
Volume of an oblique cylinder = </span>π * r² * h
radius is reduced to 2/9 of its original size = r * 2/9 = (2r/9)
height is quadrupled = h * 4 = 4h
Volume of an oblique cylinder = π * (2r/9)² * 4h
Assume: r = 9 ; h = 10
V = π * 9² * 10 = 3.14 * 81 * 10 = 2,543.40
V = π * (2²) * (10*4) = 3.14 * 4 * 40 = 502.4
The new volume decrease and is almost equivalent to 20% of the original volume.
Answer:
a₁, a₂, a₃, . . .
Step-by-step explanation:
When we name something in Mathematics it is always advisable to number them as
.
Because the alphabets are only 26 in number we might run out of notations.
The simple logic behind the notion of
is that the numbers have no end and we can number as many variables we want using this logic.
In this problem, you can continue your notation from
so that you don't have to make a change in your figure.
Answer:
15. 15x4=60
Step-by-step explanation:
Answer:

Step-by-step explanation:
Using the general equation
, we already know that
and
, but we need to find
from the period:

Hence, the cosine function is 
Answer: 2.12 seconds
Step-by-step explanation:
From the question, we are informed that Josie ran a lap in 45.23 seconds while Erica ran a lap in 43.11 seconds.
To calculate the extra amount of time it took Josie to complete the lap, we subtract Erica's time from Josie's time. This will be:
= 45.23 seconds - 43.11 seconds
= 2.12 seconds