2= √4
2×√5 = (√5 × √4)= √20
Answer: √20
Do you have any questions?
First divide the total cost by 21. when you get the answer multiply the cost of 1 apple by 8. bam. answer.
Answer:
Step-by-step explanation:
A-5B = (2x+3) - 5(x²-5x+1)
= (2x+3) + (-5x²+25x-5)
= -5x² + 27x - 2
(2 + x + x) / 3 = 22
2 + x + x = 66
2x = 64
x = 32
The numbers are:
2 32 and 32
(2 + 32 + 32) / 3 = 22
66 / 3 = 22
Correct!!
Answer:
0.4546
Step-by-step explanation:
nCr = n!/(n-r)!r!
Number of ways of selecting the four defective voltage regulators from 12 = 12C4 = 12!/(12-4)!4! = 12!/8!4! = (12 *11*10*9)/(4*3*2*1)
12C4 = 495 ways
Number of ways of selecting 2 defectives from line 1 = 6C2 * 6C2
6C2 = 6!/(6-2)!2! = 6!/4!2! = (6*5)/(2*1) = 15
6C2 * 6C2 = 15*15 = 225 ways
Probability = Number of possible outcomes/ Number of total outcomes
Probability that exactly 2 of the defective regulators came from line 1 = 225/40.95 = 0.4546
