Answer:
x = 5.09, -6.09.
Step-by-step explanation:
1/(x-2) - 1/(x+3) = 1/5
Multiply through by the LCM 5(x-2)(x+3):
5(x + 3) - 5(x - 2) = (x - 2)(x + 3)
5x + 15 - 5x + 10 = x^2 + x - 6
x^2 + x - 31 = 0
x = [ -1 +/- sqrt(1 - 1*1*31)] / 2
x = 5.09, -6.09.
Answer:
4
The Problem:
Compute the distance between 8-2i and 4-2i.
Step-by-step explanation:
This is equivalent to asking the distance from point (8,-2) to point (4,-2).
The nice thing about this problem is that the y-coordinates are the same which means it is just a horizontal distance. It can either be counted or just find the distance between the x's by finding the positive difference; that is do larger minus smaller.
8-4=4.
The distance between the points is 4.
Assuming the keypad has all 26 letters and the numbers 1-9 there are 2106 possible codes
9x9x26=2106
Answer:
y=4/5x-0.8
Step-by-step explanation:
Answer:
401 r 20
Step-by-step explanation:
