Answer:
78,732
Step-by-step explanation:
a_1 = 4
a_2 = 12
a_2/a_1 = 12/4 = 3
a_2 = 4 * 3 = 4 * 3^1 = 12
a_3 = 4 * 3 * 3 = 4 * 3^2 = 36
a_n = 4 * 3^(n - 1)
For n = 10:
a_10 = 4 * 3^(10 - 1) = 4 * 3^9 = 4 * 19,683 = 78,732
9 and 10
1.75n
For each visit it costs 1.75, so n visits would be the product of the two.
Answer:6,000
You are solving for the height. Use the formula:
c² - b² = a² in which c = hypotenuse
(13)² - (5)² = a²
Simplify
169 - 25 = a²
144 = a²
Isolate the a. Root both sides
√144 = √a²
a = √144
a = √(12 x 12)
a = 12
C) 12 feet is your answer
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