The area (in square centimeters) of a square coaster can be represented by d^2+8d+16 .

a. write and expression that represents the side length of the coaster.
(d+4)

b. write an expression for the perimeter of the coaster.
answer : ?
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The expression that represent the length of the coaster is (d + 4)

Area of a square = l²

Given:

Area of a square = d² + 8d + 16

solve the quadratic expression

d² + 4d + 4d + 16

d(d + 4) + 4(d + 4)

(d + 4) (d + 4)

Area of a square = l²

= length × length

Perimeter of a square = 4 × length

= 4 × (d + 4)

= 4d + 16

Therefore, the expression for the perimeter of the coaster is 4d + 16

Learn more about area of a square:

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ANSWER

a. d+4

b. 4d+16

EXPLANATION

The area of the square coaster is represented by:

We split the middle term to obtain,

We factor by grouping to get,

Since area of a square is l² , it means the side length of the square is

b) The perimeter of a square is given by

We substitute the length in terms of d, to obtain;

Or

answer: the center is the median and/or mean of the data. the spread is the range of the data. and, the shape describes the type of graph. the four ways to describe shape are whether it is symmetric, how many peaks it has, if it is skewed to the left or right, and whether it is uniform. good luck

step-by-step explanation: