Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![### Find the Volume of the Composite Figure
Use \(\pi = 3.14\). Round to the nearest whole number if necessary.
**Diagram Explanation:**
The diagram shows a composite solid figure, which consists of a cylinder with a hemisphere on top of it. The dimensions are as follows:
- The radius of both the cylinder and hemisphere is 2 cm.
- The height of the cylindrical part is 4 cm.
**Volume Calculation Steps:**
1. **Volume of the Cylinder (V\(_{cylinder}\)):**
\[
V_{cylinder} = \pi r^2 h
\]
Where \(r\) is the radius and \(h\) is the height.
\[
V_{cylinder} = 3.14 \times (2)^2 \times 4
\]
\[
V_{cylinder} = 3.14 \times 4 \times 4
\]
\[
V_{cylinder} = 50.24 \text{ cubic centimeters}
\]
2. **Volume of the Hemisphere (V\(_{hemisphere}\)):**
\[
V_{hemisphere} = \frac{2}{3} \pi r^3
\]
Where \(r\) is the radius.
\[
V_{hemisphere} = \frac{2}{3} \times 3.14 \times (2)^3
\]
\[
V_{hemisphere} = \frac{2}{3} \times 3.14 \times 8
\]
\[
V_{hemisphere} = \frac{2}{3} \times 25.12
\]
\[
V_{hemisphere} \approx 16.75 \text{ cubic centimeters}
\]
3. **Total Volume (V\(_{total}\)):**
Sum the volume of the cylinder and the hemisphere.
\[
V_{total} = V_{cylinder} + V_{hemisphere}
\]
\[
V_{total} = 50.24 + 16.75
\]
\[
V_{total} \approx 66.99 \text{ cubic centimeters}
\]
After rounding to the nearest whole number, the total volume is:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbf3ff033-105f-4d61-8036-4d3500062dc9%2F0eefd2a3-c10b-4387-a6ff-908e361cd1a6%2Fbxqlh5ti_processed.jpeg&w=3840&q=75)
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