exam Maths Puzzle Numerical Ability

Solve each system of equations. Check by substitution

3a + 4b = -12
4a - 5b = -16

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exam Other Question

How do you describe the right-hand and left-hand behavior of the graph of the polynomial function of f(x)= 2x^5-5x+7.5 Using Matrix calculations, solve the following problem. Show your work. A total of $50,000 is invested in three funds paying 6%, 8%, and 10% simple interest. The yearly interest is