Answer: -258
<u>Step-by-step explanation:</u>
Given the sequence {-8, 16, -32, 64, ... , a₇} we know the following
- the first term (a₁) = -8
- the common ratio (r) = -2
- the number of terms (n) = 7
Input the information above into the Sum formula:
A town has three fire engines operating independently. The probability that a specific engine is available when needed is 0.86.
1 answer:
Answer:
Part a : 0.002744
Part b : 0.997256
Step-by-step explanation:
The probability that a specific engine is available when needed is 0.86.
So, The probability that fire engine will not be available when needed =
(a)
The probability that no fire engine is available when needed =
= 0.002744
(b)
p(at least one available) =
= 0.997256
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Answer:
Total number of copies sold till date are 381522.
Step-by-step explanation:
It is given in the question the book sold 35100 copies in its first month of release and this number is 9.2% of the number of copies sold till date.
To find is how many copies have been sold.
Let the total number of copies sold be = A
Therefore 9.2% × A = 35100
A = 381521.74 ≅381522 copies