Three machines (A, B, C) are used to produce certain product. In one shift, they produce 130, 70 and 23 units respectively. Each machine produces a faulty unit with probability 1% for A, 5% for B and 13% for C. i. Find the proportion of faulty units produced. ii. Given a faulty unit, what is the probability that it was produced by B

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

16

step-by-step explanation:

1st integer x

2nd integer x+1

3rd integer x+2

4th integer x+3

x+x+1 +x+2+x+3 =74

combine like terms

4x+6 = 74

subtract 6 from each side

4x = 68

x = 17

the integers are 17,18,19,20

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.