Answer:
B..........................
<span>First let us answer it as if the input is 12. Then the output is 36. F(12)=36 If the input is 13, then the output is 39. F(13)=39 So we know the answer is between 36 and 39 The output of 12.5 is the same as the output of 12 plus the output of .5 F(12.5) =F(12) + F(.5) = 36 + 1.5 =37.5 So the question is really what is the output of .2 F(12.2) = …<span>The same as Y=3X with X being the input.</span></span>
Answer: B
Step-by-step explanation: Hope this helps :)
Answer:
figure 3: 17 cubes.
figure 4: 21 cubes.
figure 5: 25 cubes.
Step-by-step explanation:
Let the nth figure be represented by f(n).
also we are given f(n+1)=f(n)+4.
The number of cubes used in figure 1 i.e. f(1) is 9.
number of cubes used in figure 2 i.e. f(2) is 13
Now we have to find the number of cube used in figure 3, figure 4 and figure 5.
number of cubes in figure 3 i.e. f(3)=f(2)+4=13+4=17.
number of cubes in figure 4 i.e. f(4)=f(3)+4=17+4=21.
number of cubes in figure 5 i.e. f(5)=f(4)+4=21+4=25.
