The second one should by right
Answer:
9.695652174 or 9.69 or 9.70
Step-by-step explanation:
223÷23
Answer:
Por definición convencional se dirá que cualquier elemento del siguiente conjunto, ℕ = {1, 2, 3, 4, …}, es un número natura
Answer:
B. -4
Step-by-step explanation:
We want to find x such that f(x)=18.
We need to therefore solve 9x+54=18 forx.
9x+54=18
Divide both sides by 9:
(9x+54)/9=18/9
9x/9+54/9=18/9
Simplify:
x+6=2
Subtract 6 on both sides:
x=2-6
Simplify
x=-4.
So f(-4) should have value 18.
Let's check.
f(x)=9x+54
f(-4)=9(-4)+54
f(-4)=-36+54
f(-4)=18
So the answer is B.
