Of all the weld failures in a certain assembly, 85% of them occur in the weld metal itself. a sample of 10 weld failures is examined. assume independence of weld failures.(a) what is the probability that fewer than four of them are base metal failures? (b) what is the probability that at least nine of them are base metal failures? (c) find the mean and standard deviation of the number of base metal failures.

c

step-by-step explanation:

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.