9514 1404 393
Explanation:
The problem statement tells you the meaning of t. It is minutes after Riko leaves. 0 ≤ t < 52.5 is the answer to the question regarding the interval Riko is behind Yuto. It means Riko is behind Yuto for 52.5 minutes after she leaves their house.
t will not be negative because time moves forward. Here, we're only counting time <em>after Riko leaves the house</em>. A negative value for t would refer to a time before Riko leaves the house, which is irrelevant in this problem.*
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* One might argue that Riko is behind Yuto for all values of time <em>after Yuto leaves the house</em>, which would be for -21 < t < 52.5. The concept of "behind Yuto" has no meaning except in that interval.
The formula for the area of a circle is PieR^2.
To solve for R we need to divide the area by 3.14 and then square root it.
You are then left with the Radius.
Answer:
C. 172.5 ft²
Step-by-step explanation:
area of triangular roof piece is 1/2(10)(6.9) = 34.5
there are 5 of them so 34.5 x 5 = 172.5 ft²
#1) The correct answer is A) 5.
#2) The correct answer is C) the number of cans collected per day.
We find the rate of change by finding the change int he outputs, the change in the inputs, and writing it as output/input:
(20-15)/(2-1) = 5/1 = 5
The rate of change tells us how many cans (on average) per day were collected.
Answer:81
Step-by-step explanation: