Which mathematical property is demonstrated? 5 • 7 • 4 = 5 • 4 • 7 a. commutative property of addition b. commutative property of multiplication c. associative property of addition d. associative property of multiplication

Step-by-step explanation:

The operation 5 • 7 • 4 = 5 • 4 • 7 is demonstrating the commutative property of multiplication, because factor 7 and 4 are being commutate, that is, changed their position, to prove that no matter the order, it will result the same quantity. Also, it's property of multiplication and not addition, because there are factor that are being multiplied.

The next of the demonstration should be:

5 • 7 • 4 = 5 • 4 • 7

140 = 140.

Therefore, option B is the right answer.

-10i^2-4i

step-by-step explanation:

evaluate for p=2,q=5i

(2−4)(2+5i)i

(2−4)(2+5i)i

=−10i2−4i

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.