Answer:
Ex 1: f(2)-f(1)+f(1÷2)=9÷4
Step-by-step explanation:
f(2)=2²-2×2+2=4-4+2=2
f(1)=1²-2×1+2=1-2+2=1
f(1÷2)=(1÷2)²-2×(1÷2)+2=5÷4
I just realized I forgot a whole unit we did this year, but a(n)=5n-12
is the explicit form if that helps at all
Answer:
x > -5
Step-by-step explanation:
-5(x+7)<-10
Divide each side by -5. Remember that means to flip the inequality
-5/-5(x+7)>-10/-5
x+7 > 2
Subtract 7 from each side
x+7-7 > 2-7
x > -5
Answer: 3/9
Explanation:
6 2/9 - 5 - 8/9
= 1 2/9 - 8/9
= 11/9 - 8/9
= 3/9
30-f+8f=30
30+7f=30
Move +30 to the right side. Sign changes from +30 to -30.
30-30+7f=30-30
7f=0
Divde by 7
7f/7=0/7
Cross out 7 and 7, divide by 7. Becomes 1*1*f=f
f=0
Answer: f=0