Answer with explanation:
|A| = -2
|B|= -3
|C| = -4
The students in Jason's grade voted to select a guest speaker. 90% of the students voted for a famous athlete. If 36 students vo
1 answer:
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Answer:
72 stamps
Step-by-step explanation:
First, we're looking to find the number of stamps that AREN'T foreign, so we have to subtract 68% from 100%.
- 100% - 68%
- 32%
Now, we know that 32% of the stamps are NOT foreign. So, next, we:
- Multiply 32 by 225.
- Divide the product of 32 and 225 by 100
Therefore, the answer is 72 stamps.
Answer:
Step-by-step explanation:
From similar triangles, see diagram in attachment
We solve for to obtain,
The formula for calculating the volume of a cone is
We substitute the value of to obtain,
This implies that,
We now differentiate both sides with respect to to get,
We were given that water is drained out of the tank at a rate of
This implies that .
Since we want to determine the rate at which the depth of the water is changing at the instance when the water in the tank is 8cm deep, it means .
We substitute this values to obtain,
