Answer:
f(1) = 81
Step-by-step explanation:
f(n + 1) = 1/3 f(n)
⇔ f(n) = 3 × f(n + 1)
……………………………
if f(3) = 9 ⇒ f(2) = 3 × f(3) = 3 × 9 = 27
Then
f(1) = 3 × f(2) = 3 × 27 = 81
(0,2) and (1,1)
slope = (2 - 1)/(0 -1) = -1
y intercept b = 2
equation
y = -x + 2
answer
equation
y = -x + 2
Answer:
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Simplify √20 to 2√5
2 * 2√5 - 3√7 - 2√5 + 4√63
Simplify √63 to 3√7
2 * 2√5 - 3√7 - 2√5 + 4 * 3√7
Simplify 2 * 2√5 to 4√5
4√5 - 3√7 - 2√5 + 4 * 3√7
Simplify 4 * 3 √7 to 12√7
Collect like terms
(4√5 - 2√5) + (-3√7 + 12√7)
Simplify
2√5 + 9√7
Answer: B
