Answer:
B
Step-by-step explanation:
Probability is given by number of possible outcomes ÷ number of total outcomes
Probability (the 11th bulb meets quality standard) = 1/11
Probability (the next bulb will be defective) means it will not meet quality standard = 1 - 1/11 = (11 - 1)/11 = 10/11
Simplify the following:5 i/(3 i + 2)^2
(3 i + 2)^2 = 4 + 6 i + 6 i - 9 = -5 + 12 i:(5 i)/12 i - 5
Multiply numerator and denominator of (5 i)/(12 i - 5) by 5 + 12 i:(5 i (12 i + 5))/((12 i - 5) (12 i + 5))
(12 i - 5) (12 i + 5) = -5×5 - 5×12 i + 12 i×5 + 12 i×12 i = -25 - 60 i + 60 i - 144 = -169:(5 i (12 i + 5))/-169
i (12 i + 5) = -12 + 5 i:(5 5 i - 12)/(-169)
Multiply numerator and denominator of (5 (5 i - 12))/(-169) by -1:Answer: (-5 (5 i - 12))/169
-10
-2
-6
2
-1
-9
I haven’t done this in a while
Recall that (a+b)²=a²+2ab+b²
100x²+120x+z
in this case, because100x²=(10x)², a=10x, z=b²
120=2*10*b
b=6
z=b²=36
the square is (10x+6)²
Answer:
Step-by-step explanation:
x + 1 = 6
x = 5