Mathematics, 30.08.2019 17:30 matthew6889
Amachine can insert letters in envelopes at the rate of 120 per minute. another machine can stamp the envelopes at the rate of 3 per second. how many such stamping machines are needed to keep up with 18 inserting machines of this kind?
(a) 12
(b) 16
(c) 20
(d) 22
(e) 24
Answers: 1
Mathematics, 21.06.2019 15:50
Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.
Answers: 2
Mathematics, 21.06.2019 16:40
Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4
Answers: 1
Mathematics, 21.06.2019 17:20
Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be
Answers: 1
Mathematics, 21.06.2019 19:00
What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)
Answers: 2
Amachine can insert letters in envelopes at the rate of 120 per minute. another machine can stamp th...
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