Answer:
By making ‘a’ the subject, I believe you mean isolate the variable ‘a’.
1/a - 1/b = 1/c : add 1/b to both sides
1/a = 1/b + 1/c : combine the unlike fractions by finding a common denominator, bc is the common denominator
1/a = (1/b)(c/c) + (1/c)(b/b) : simplify
1/a = (c/bc) + (b/bc) : add numerators only, because the denominators match
1/a = (c + b)/bc : multiply both sides by a
1 = (a)[(c + b)/bc] : multiply both sides by the reciprocal of [(c + b)/bc] which is [bc/(b + c)]
1[bc/(b + c)] = a
a = bc/(b + c)
This will not work if c = -b, because then you would be dividing by zero.
Example: 1/2 - 1/3 = 1/6 a = 2, b = 3 c= 6
a = bc/(b + c) => 2 = (3 x 6)/(3 + 6) => 2 = 18/9 => 2 = 2.
Step-by-step explanation:
Answer:
B) 1) -10 2) 4
C) 1) 16 2)-178 3)-315 4) 144
Step-by-step explanation:
input the f(x) number wherever the x is.
For example B) 1)f(x)= -1; 9- -1 -6 times -1
9 + 1 -6(-1) = 10 + 6 = 16
Answer:
2,1,0,-1,-2
Step-by-step explanation:
Only 19 is a function because a function only has one y value for every x value. For the other graphs, there are at least two y values for each x value.
Answer:
-2, b, a+c
Step-by-step explanation:
