Answer:
substitute x as 3
Step-by-step explanation:
f (3)=2x
=2×3
=6
That is 2(1/7 + 1/2)
= 2( 2/14 + 7/14)
= 2 * 9/14
= 18/14 = 9/7 units ( or 1 2/7 units)
Answer:
C. 3⁶
Step-by-step explanation:
Exponents with the same base follow this exponential rule for division:
When the bases are the same, we can subtract the exponents.
The bases are the same in this problem: 3. Therefore, we can subtract the exponents from each other:
The final and correct answer is C. 3⁶.
√52 -√13 +√117
= 2√13 -√13 +3√13
= 4√13 . . . . matches selection A
_____
√52 = √(4·13) = (√4)(√13) = 2√13
√117 = √(9·13) = (√9)(√13) = 3√13
