Estimate the result of the calculation. Use your estimate to determine if the result appears to be correct or incorrect.
A. Incorrect. Estimate: 1600
B. Incorrect. Estimate: 2000
C. Incorrect. Estimate: 1800
D. Incorrect. Estimate: 1900
Answer: C
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Round the whole number to the given place value.91,089 to the nearest thousand
A. 91,000 B. 92,000 C. 91,100 D. 101,000
Solve the equation by the method of your choice. Simplify solutions, if possible.(2x - 1)2 = 81
A. {4, -5} B. {10, -8} C. {8, -10} D. {5, -4}
Use a graphing calculator to solve the system of equations. Round your solution to one decimal place.1.7x + 10.6y + 3.7z = 3.83.7x - 7.0y - 1.9z = -4.32.8x + 1.5y + 2.3z = 11.5
A. (-5.2, -9.1, 32.8) B. (-1.9, -3.3, 12.0) C. (-1.3, -2.2, 8.0) D. (3.2, 5.6, -20.0)
Solve the quadratic equation using the quadratic formula (if necessary, round the result to three significant digits).
x = ____ 
____j
What will be an ideal response?