Answer:
A
Step-by-step explanation:
First, the definition of a floor function is that you round down, whereas for a ceiling function, you round up no matter what.
So, since C and D have the definitions totally wrong inherently, we can eliminate those.
Looking at the graph, we see that all the segments have their leftmost circle filled in. This indicates that the smaller number is counted. So, it's a floor function graph.
Thus, the answer is A.
Hope this helps!
Answer:
Doubling the actual answer and increasing it by 2.
Step-by-step explanation:
The calculator is returning 26, instead of 12. Note that 26 is 2 more than twice of 12.
i.e.
26 = 2(12) + 2
Calculator is returning 32 instead of 15. Here again we can note the same logic. 32 is 2 more than twice of 15.
i.e.
32 = 2(15) + 2
Calculator returns 202 instead of 100. Here again the same logic holds true.
i.e.
202 = 2(100) + 2
So, what the calculator is doing is:
Doubling the actual result and increasing it by 2.
5+4(21+3x)=41
5+(4)(21)+(4)(3x)=41(Distribute)
5+84+12x=41
(12x)+(5+84)=41(Combine Like Terms)
12x+89=41
12x+89=41
Step 2: Subtract 89 from both sides.
12x+89−89=41−89
12x=−48
Step 3: Divide both sides by 12.
12x12=−4812
x=−4