Round 370,131 to the nearest ten thousand

7 is in the ten thousands place so we look at the 0

0 < 5 so we leave the 7 alone

370,000

370,000

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.