Carbon foot print: Carbon dioxide (CO,) is produced by burning fossil fuels such as oil and natural gas, and has been connected to global warming. The following table presents the average amounts (in metric tons) of CO, emissions for certain years per person in the United States and per person in the rest of the world. Year Non-U.S. U.S. 1990 3.6 19.2 1992 3.5 18.8 1993 3.3 19.7 1994 3.3 19.8 1995 3.3 19.5 1997 3.4 20.0 1998 3.3 19.5 Source: World Bank Send data to Excel Part: 0 / 3 Part 1 of 3 Compute the least-squares regression line for predicting U.S. emissions from non-U.S. emissions. Round the slope and y- intercept to at least four decimal places. Regression line equation: y =
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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