Answer:
8
Step-by-step explanation:
This means that 2 + .15x is 3.20, or 0.15x is 1.2, so x = 8.
<span><span>1/2</span>+<span>1/3</span>+<span>1/15 is how it would be written as</span></span>
Answer:
b
Step-by-step explanation:
Answer: option (b)
1 billion = 1, 000, 000, 000
In scientific notation, a number is rewritten as a simple decimal multiplied by 10 raised to some power n.
10 =101
100= 102
1, 000 = 103
1, 0000 = 104.
..............
Therfore 1 billion can be written as
1 billion =1, 000, 000, 000=10^{9}
Then 1.5 billion = 1.54 10^{9}
Hence option (b) is the correct answer
please give me brilliant answer
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an = a1r^(n-1)
a5 = a1 r^(5-1)
-6 =a1 r^4
a2 = a1 r^(2-1)
-48 = a1 r
divide
-6 =a1 r^4
---------------- yields 1/8 = r^3 take the cube root or each side
-48 = a1 r 1/2 = r
an = a1r^(n-1)
an = a1 (1/2)^ (n-1)
-48 = a1 (1/2) ^1
divide by 1/2
-96 = a1
an = -96 (1/2)^ (n-1)
the sum
Sn = a1[(r^n - 1/(r - 1)]
S18 = -96 [( (1/2) ^17 -1/ (1/2 -1)]
=-96 [ (1/2) ^ 17 -1 /-1/2]
= 192 * [-131071/131072]
approximately -192
