The number that is its own opposite is zero. Zero is both a positive and a negative number at the same time.
Answer:
63
Step-by-step explanation:
Put the given value where x is in each function definition and do the arithmetic. 5 replaces x in F(x); 6 replaces x in G(x).
F(5) + G(6) = (5² +5·5) + (2·6 +1) = 25 +25 +12 +1 = 63
Answer:
w≥15
Step-by-step explanation:
Subtract 80 from both sides to get -2w≤-30. Divide both sides by -2. Because it is negative, flip it. You will get w≥15.
