Step-by-step explanation:
4x²-64
(2x)²-(8)²
a²-b²=(a+b)(a-b)
=(2x+8)(2x-8)
Therefore, the factors are -4 and 4.
Answer:
10th term
Step-by-step explanation:
3ⁿ⁻¹ > 7000
log₃ 7000 = 8.05
n - 1 > 8
n > 9
10th term
check: 1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683
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since the Triangles are similar, ratio of their corresponding sides are equal :
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
Answer:
Step-by-step explanation:
Use this formula:
where A(t) is the amount after the compounding is done, P is the initial investment (our unknown), r is the interest rate in decimal form, n is the number of compoundings per year, and t is the time in years. Filling in:
and simplifying that a bit:
and a bit more:
and even bit more:
520 = P(1.094551401) and divide to get
P = $475.30
