Mathematics, 06.09.2021 06:40 dondre54
2. Using suitable algebraic rules, calculate the following: (2 points each)
( a ) 582-422
( b ) 9992
( c ) 10595
3. Expand the following: (2 points each)
( a ) 7b(b2-b-3)
( b ) (m+5)(m2+m-1)
( c ) 6x+42
( d ) (2x+3y)(2x-3y)
4. Factorise the following expressions: (2 points each)
( a ) 25x2-16y2
( b ) y2-6y+9
( c ) x2-14x-32
Answers: 2
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Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain
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The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.
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2. Using suitable algebraic rules, calculate the following: (2 points each)
( a ) 582-422
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