If 10% of the television picture tubes burn out before their guarantees has expired: (a) What is the probability that a merchant who has sold 100 such tubes will be forced to replace 20 of them?
(b) What is the probability that he will replace at least 5 and not more than 15 tubes?

1d

2b

3 false

4 d

5 3200sq,ft

80+60+y=180

then divide the difference between 60 and y and add it to 180

so x =180 +( (y-60)/2)

x equals 200

step-by-step explanation:

8

ok then what happened.

hdjd

step-by-step explanation:

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)