Answer:
Step-by-step explanation:
The given series is a geometric series because the consecutive terms differ by a common ratio. The formula for determining the sum of the first n terms, Sn of a geometric sequence is expressed as
Sn = (ar^n - 1)/(r - 1)
Where
n represents the number of term in the sequence.
a represents the first term in the sequence.
r represents the common ratio.
From the information given,
a = 3
r = 6/3 = 12/6 = 2
n = 15
Therefore, the sum of the first 15 terms, S15 is
S15 = (3 × 2^(15) - 1)/2 - 1
S15 = (3 × 32767)/1
S15 = 98301
Answer:
8x^2-2x+4x+1=0
2x(4x-1)-1(4x-1)=0
(2x-1)(4x-1)
x=1/2,1/4
Step-by-step explanation:
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The five is in the hundred thousands place. look to the place before it witch is 7. 7 is greater than 5 which means you have to round the five up.
74,600,000
Answer:
A decimal in the wrong place can change the value of a number COMPLETELY!
Step-by-step explanation:
for example
0.4 can be converted to 40 cents or 2/5, but if you change the decimal 0.04 converts to 4% or 1/25.
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Answer:8 mph
Step-by-step explanation: