9. Deerhaven had a population of 42,000 in 1960 and a population of 58,000 in 1990. Based on this data, the city planner developed an exponential model to predict the city's population in 2013. As it turns out, the city had a population of 75,000 in 2013. Which of these is the best description of how close the prediction was to the actual population in 2013? A Within 100 people B Within 1,000 people C Within 10,000 people D Within 100,000 people
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.
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