<span> f(3) = f(2) + f(1) => 3 + 2 = 5
f(4) = f(3) + f(2) => 5 + 3 = 8
f(5) = f(4) + f(3) => 8 + 5 = 13
Therefore the sequence is 2, 3, 5, 8, 13,.....a Fibonacci sequence.
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Answer:
-17
Step-by-step explanation:
It is basically subtracting 4 from 21 except the answer is negative
Answer:
C
Step-by-step explanation:
In this technique, if we have to factorise an expression like ax2+bx+c, we need to think of 2 numbers such that:
N1⋅N2=a⋅c=1⋅−12=−12
AND
N1+N2=b=−1
After trying out a few numbers we get N1=3 and N2=−4
3⋅−4=−12, and 3+(−4)=−1
x2−x−12=x2−4x+3x−12
x(x−4)+3(x−4)=0
(x+3)(x−4)=0
Now we equate the factors to zero.
x+3=0,x=−3
x−4=0,x=4
The answer is 1761 1/2 (1761.5 in decimal form)
No . because you would then have 2/4 which is 1/2 50%
