Mathematics, 03.10.2019 02:00 HolliAnne
5. 30pts] prove or disprove each of the following claims: (a) for all positive integers, n is even if and only if 3n^2 + 8 is even (b) if a and b are rational numbers, then a^2+ b^2> 2ab (c) if n iss an even integer, then n + 1 is odd. (d) every odd number is the difference of two perfect squares.
Answers: 2
Mathematics, 21.06.2019 21:30
Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)
Answers: 1
Mathematics, 21.06.2019 23:30
Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.
Answers: 2
Mathematics, 22.06.2019 02:30
P= price tax is 4% added to the price. which expression shows the total price including tax?
Answers: 3
Mathematics, 22.06.2019 04:00
Grace paid $1.70 for 5 ounces of candy. how much did she pay for 24 ounces?
Answers: 1
5. 30pts] prove or disprove each of the following claims: (a) for all positive integers, n is even...
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