The sum of n terms is given from the first term and the common ratio by
For your given values of a1=-11, r=-4, n=8, the sum of 8 terms is
Two bags of a concrete mixture had the same weight. Together they weighed 40.6 pounds. To make them lighter
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The system of equations have 2 solutions
<h3>How to determine the number of solutions?</h3>The system of equations is given as:
-1/3x² = 5/6 + 1/3y²
5y² = 25/2 - 5x²
Next, we plot the graph of the system of equations.
From the attached graph, the equations intersect at two points
Hence, the system of equations have 2 solutions
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