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Oksanka [162]
3 years ago
14

How many terms are in the simplified expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2

Mathematics
2 answers:
Vilka [71]3 years ago
4 0

there are 6 terms in the simplified expression


Virty [35]3 years ago
4 0
<span>-3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 should be written with " ^ " to indicate exponentiation:

</span><span>-3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y^2

Next step is to combine like terms (simplify):

5x^2 - 3x^2 + 2y^2 - 3y^2 + 5xy - 2y  becomes  
      2x^2       -         y^2      + 5xy - 2y.

This has FOUR terms.</span>
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What is the nth term rule of the linear sequence below? 15 , 7 , − 1 , − 9 , − 17 , . . .
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7 0
3 years ago
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3 0
3 years ago
−76 = −0.8k <br><br> k =<br><br> What number represents k
Over [174]

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A bicycle store installs about 400 tires per day. Tires are installed Monday through Friday for 8 hours per day. The owner of th
dalvyx [7]
Dividing the number of tires that should be installed per day which  is 400 by the number of working hours which is 8 will give us 50 tires per hour. Assuming that the same mistake will take toll on the workers such that they will have 1 tire mistakenly installed in an hour, they will have 8 erroneous tires in a day. Multiplying this by 5 to make the answer per week will give 40. Out of the 400 x 5  = 2000 tires. The answer would be 2000 - 40 which is equal to 1940. The assumption must be valid. 
6 0
3 years ago
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