Yes it is because 18÷6 is 3 and 6×3=18
9. i dissagree because 0.70 and 0.7 is the same thing
10. is 1.45
11. is 0.37
126 divided by 2 = 63
63 x 3 = 189
b = 189
Answer:
f(-2)=2
Step-by-step explanation:
f(-2)=4x+10
f=(4)(-2)+10
f=-8+10
f=2
Answer:
176/1125 or 0.156
Step-by-step explanation:
There are 15 bulbs, of which 4 are 23-watt. The probability of selecting a 23-watt bulb = 4/15. If we call this probability x, then x = 4/15.
The probability of selecting a 13-watt or 18-watt bulb is the probability of not selecting a 23-watt bulb. If we call this y, y = (6+5)/15 = 11/15. It follows that x and y are mutually exclusive. Here, we have a binomial distribution.
The number of ways of selecting exactly two 23-watt bulbs out of three is

The probability of selecting them is
