can someone help me please it's due at 11:59 I have to solve the following equations -7x-4y=-4 -9x-5y=-6

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation:

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answer: d.) the total number of protons and neutrons is 15

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your friendly neighborhood human spider! .

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?