This is equal to the probability that no light fail. Probability of one light not failing = 0.98.
P(no light fails) = 0.98^20 = 0.67 or 67% to nearest percent.
Answer:

Step-by-step explanation:
We are given that
Volume of cylinder =
Height of cylinder=9 cm
We have to find the area of base of the pillar.
We know that
Volume of cylindrical pillar=
Where Base=
Substitute the values then we get


Hence, the area of base of the pillar=
Rows of 6 and 6 goes into 30 five time.(30 divide by 6 equals to 5)
Answer:
33.15
Step-by-step explanation:
65% is 0.65
102/2=51
0.65*51=33.15 which is the answer