1) round to 3
2) round to 4
3) round to 7
4) round to 6
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a.
b.
c. By the law of total probability,
According to the inclusion/exclusion principle,
but by DeMorgan's law,
So
and from there we find
d. The event of having at most two of these defects is complementary to the event that all three defects occur simultaneously:
Answer:
B
Step-by-step explanation:
The standard form of a circle is
where h and k are the coordinates of the center of the circle and the radius is squared. The radius is easy...take the square root of 25 to get that the radius is 5. Since the pattern for the standard form is "x-" and "y-", if (x+2)^2 is the horizontal placement of the center, it actually was originally written as (x-(-2))^2, so the h coordinate is -2. Same goes for the vertical movement of the center. (y-(5))^2 means that the k coordinate is a positive 5.
Answer:
C
Step-by-step explanation:
It is shown that the whole angle is 90 degree and we have 1 part in numbers so
35+5x=90
5x=90-35
5x=55
x=11