Define amplitude, period, and frequency for trig functions.
1 answer:
You might be interested in
Answer:
Walkway is 3 feet wide.
Step-by-step explanation:
Given:
Length of the building is 150 ft
width of the building is 100 ft
walkway is x ft wide.
Total area(around and including the building) = 16536 square feet
Solution:
Length of the total area will be = length of the building + width of walkway from 2 sides =
Width of the total area will be = width of the building + width of walkway from 2 sides =
Now Total area(around and including the building) = Length of the total area Width of the total area
Now solving for both equation we get.
Now, We get 2 values for x which -128 and 3 but the width of the building can't be in negative value hence we will consider value of x be 3.
∴ Width of the walkway is 3 ft.
Answer:
20 1/2 feet
Step-by-step explanation:
18 inches is 1 1/2 feet. We can add up the lengths. Remember that multiplication is used to simplify repeated addition.
rope needed = 2×(5 ft) +7×(1 1/2) ft
= 10 ft + 10 1/2 ft
= 20 1/2 ft
_____
<em>Comment on the solution</em>
There are many ways you can go at the solution of this. The one you choose may depend on the kind of aritmetic you're comfortable with.
Since one of the dimensions is given in inches, and the result is required in feet, at some point you need to convert from inches to feet. It is useful to know that 12 inches equal 1 foot. That tells you that you can divide the number of inches by 12 to get the number of feet. (18 inches = 18/12 feet = 3/2 feet = 1 1/2 feet)
You can add the step lengths in inches (18 inches × 7 = 126 inches = 10 1/2 feet) or in feet (1 1/2 feet × 7 = 10 1/2 feet).
___
Since one of the dimensions involves a fraction of a foot, at some point you have to deal with arithmetic involving fractions. Here, we have assumed you know how to do that (this is college math, after all).
Modern calculators are quite versatile in the sorts of expressions they can evaluate. For mine, it would be convenient to write it as ...
2×5+7×(18/12) . . . . would give 20 1/2
The Google search box is also a very good calculator for a variety of problems. Its use is shown below.
