Answer:
Error in the third line.
Step-by-step explanation:
There is an error in the third line.
We are dividing through by 7 but mx is not divided by 7.
Correct solution is:
mx + 7nx =7
x(m + 7n) = 7
x = 7 / (m + 7n).
Answer:
15
Step-by-step explanation:
18 ÷ 3 = 6
6+3 =15
hope this helps
Answer:
{-1, 0, 1}
Step-by-step explanation:
If your function is f(x) = 1/2x -2, then the range is found by executing the function on each of the domain values:
f(2) = 2/2 -2 = -1
f(4) = 4/2 -2 = 0
f(6) = 6/2 -2 = 1
The range is {-1, 0, 1}.
9)

11)
(a²b)³ = a²⁽³⁾b¹⁽³⁾ = a⁶b³
12)
The exponent tells you how many places to move the decimal. The positive/negative sign tells you which direction to move the decimal (negative is left, positive is right).
8.4 x 10⁻⁵ <em>move the decimal 5 places to the left</em> = 0.000084
Answer:
Divide 576 by 12 and you'll get your answer.