Which number produces a rational number when added to 0.42? a. pi b.0. c.3/8 d. √3

C

Step-by-step explanation:

The whole question is a distracting part. When you add an irrational number to a rational one,  it stays irrational, so the question is... Which of these is a rational number. And it is 3/8

Step-by-step explanation:

Given the number 0.42

we have to choose the number which produces a rational number

The number 0.42 is a rational number as it is terminating after decimal point.

As the addition of two rational number results a rational number.

Hence, the number which is rational or we can say the number which is terminating after decimal point added to 0.42 gives a rational number.

0.42+0.375=0.795 which is rational.

Hence, option C is correct

-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