Question

complete the expressions and select the missing property. write each answer as a number, a variable, or the product of a number and a variable. (4d + 1) + 4 = \square + (1 + 4) = 4d + \square add

Explanation:

Step1: Identify the associative property

The expression \((4d + 1)+4\) is being rewritten using the associative property of addition, which states \((a + b)+c=a+(b + c)\). Here, \(a = 4d\), \(b = 1\), and \(c = 4\). So the first blank (where \(a\) is) should be \(4d\).

Step2: Add the constants

Now, we need to add \(1\) and \(4\). \(1+4 = 5\), so the second blank (the result of \(1 + 4\)) is \(5\).

Answer:

First blank: \(4d\), Second blank: \(5\) (So the completed expressions are \((4d + 1)+4=4d+(1 + 4)=4d + 5\))