There are 10 single digit numbers that can be used for each digit.
The first digit cannot be 1 , so that leaves 9 other possibilities.
The last digit must be even, so it can be 0, 2, 4,6, 8 ( 5 possibilities).
The 3 middle numbers can be any digit ( 10 numbers)
To find total combinations multiply all the possible numbers for each digit:
9 x 10 x 10 x 10 x 5 = 45,000 possibilities.
Serving to induct or bring in; introductory
A reciprocal is when you switch the numerator and denominator of a number. So, the answer is 5/-3
Complementary angles have a sum of 90
32+2x+14=90
2x+46=90
2x=44
x=22 the second angle is 58
2(22)+14=58
