Answer:
(j - 4) - 7
Step-by-step explanation:
[] Underlined means that part of the sentence was turned into an expression in the next step
what is 7 less than the <u>difference between j and 4</u>
<u>what is 7 less than the</u> (j - 4)
(j - 4) - 7
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- Heather
Answer:
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Step-by-step explanation:
Answer:
Step-by-step explanation:
y - 8 = -2(x - 6)
y - 8 = -2x + 12
y = -2x + 20
Answer:
The probability that the bulb will last more than 1,200 hours is 0.3012
Step-by-step explanation:
Let the random variable <em>X</em> = life of a light bulb .
The random variable
The probability distribution function of exponential distribution is:
The mean of the distribution is, Mean = 1000 hours.
The value of λ is:
Compute the probability that the bulb will last more than 1,200 hours as follows:
Thus, the probability that the bulb will last more than 1,200 hours is 0.3012.
F(x) = -9x^2 + 7x + 2
Factorising we get:
f(x) = (x + 1) (-9x + 2)
The solutions are x = -1 and 2/9ths