Mathematics, 03.08.2019 02:00 andrespeerman
1. solve the system. {j+k=3j−k=7{j+k=3j−k=7 use the substitution method. the solution is (5, −2)(5, −2). there is no solution. the solution is (8, 1)(8, 1) there are an infinite number of solutions. 2.solve the system of equations. {y=2x−64x−2y=14{y=2x−64x−2y=14 use the substitution method. the solution is (4, 14)(4, 14). the solution is (14, 4)(14, 4). there is no solution. there are an infinite number of solutions. 3. solve the system of equations. {y=x−82x+3y=1{y=x−82x+3y=1 use the substitution method. (2, −6)(2, −6) (4, −4)(4, −4) (0, −8)(0, −8) (5, −3) 4. what is the y
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If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
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Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?
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1. solve the system. {j+k=3j−k=7{j+k=3j−k=7 use the substitution method. the solution is (5, −2)(5,...
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