Need help with this question. it is about complex numbers. WIll mark brainliest to the best answer. Thank you

The value of m for the complex number to be purely real are 3 and -5.

The value of m for the complex number to be purely imaginary are -2 and 3.

For the complex number to be located in the second quadrant, the value of m must be less than -3 and 5.

Given the complex number:

a) For the complex number to be purely real, then the imaginary part of the complex number must be zero that is:

Factorize

Hence the value of m for the complex number to be purely real are 3 and -5.

b) For the complex number to be purely imaginary, then the real part of the complex number must be zero. Hence;

Factorize

Hence the value of m for the complex number to be purely imaginary are -2 and 3.

c) For the complex number to be in the second quadrant, then the ratio of y to x must be negative i.e less than zero as shown:

Hence for the complex number to be located in the second quadrant, the value of m must be less than -3 and 5.

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

use formula for the circle a=3.14

step-by-step explanation: