the length of a rectangle is 9 inches. write an expression for the area of the rectangle if the width is w inches. find the area of the rectangle when the width is 1,8,9, and 11 inches.
let A = area of rectangle
let w = width of rectangle
area of rectangle = length * width, therefore:
A = 9w
then plug-in values for the width in the formula:
(a) if w=1, A = 9*1 = 9 sq. in
(b) if w=8, A = 9*8 = 72 sq. in
(c) if w=9, A = 9*9 = 81 sq. in
(d) if w=11, A = 9*11 = 99 sq. in
so there,, =)
A spherical storage tank has a diameter of 14 feet.
Approximately how many cubic feet of water will it hold
To write an expression for the area of the rectangle, we can multiply the length by the width. Given that the length is 9 inches and the width is w inches, the expression for the area is:
Area = Length x Width
Substituting the given values, the expression becomes:
Area = 9w
To find the area of the rectangle for different widths, we can substitute the given width values into the expression.
When the width is 1 inch:
Area = 9(1) = 9 square inches
When the width is 8 inches:
Area = 9(8) = 72 square inches
When the width is 9 inches:
Area = 9(9) = 81 square inches
When the width is 11 inches:
Area = 9(11) = 99 square inches
Thus, the areas of the rectangle for width values of 1, 8, 9, and 11 inches are 9 square inches, 72 square inches, 81 square inches, and 99 square inches respectively.
To write an expression for the area of a rectangle, we use the formula: Area = length × width.
In this case, the length of the rectangle is given as 9 inches, and the width is represented by the variable w inches. Therefore, the expression for the area of the rectangle is:
Area = 9 × w
Now, let's find the area of the rectangle for different values of the width w.
For a width of 1 inch:
Area = 9 × 1 = 9 square inches
For a width of 8 inches:
Area = 9 × 8 = 72 square inches
For a width of 9 inches:
Area = 9 × 9 = 81 square inches
For a width of 11 inches:
Area = 9 × 11 = 99 square inches
So, the area of the rectangle when the width is 1, 8, 9, and 11 inches respectively is 9 square inches, 72 square inches, 81 square inches, and 99 square inches.