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.
Hello having difficult on how to figure out domain rules. I have several homework problems I can remember how to solve. please help
Functions are mathematical construcs that take inputs and give outputs. Sometimes, a function can give us indefinite outputs such as : infinity corresponding to a certain value of input. In other cases, the function does not give a meaningful value of does not exist for certain cases of inputs. Hence these values are not supposed to be entered into the function. The set of input values for which a function gives a finite output is called the domain of a function. Now let us see how to find domains for certain functions.
Take for example fractional functions.
In 1/x, if x =0, we get infinte. So the domain of x is all real numbers except zero
In the next exaple x cannot be equalt to 2 for the same reasons
In the final example, if x = 0 the exponent becomes 1, which then gives infinite.
To find the domain in such functions you need to find the zeros of the denominator. Then the domain is all real values except the zeros
Step by step
Solved in 4 steps with 2 images
