Question
Suppose xy = -15 and (x² + y²) = 34, then determine
the value of (x – y).Solution
ATQ,
We know that, (x – y) ² = x² + y² – 2xy
ATQ;
(x – y) ² = 34 – 2 × (-15)
(x – y) ² = 64
(x – y) = ±8
The greatest number that will divide 398,436, and 542 leaving 7, 11, and 15 as remainders, respectively, is:
[(√2024.85 ÷ 3.01) + (35.76 ÷ 11.92)]² × (3/4 of 39.99) = ?
Solve the following expression and calculate the approximate value.
398% of 388 + 129% of 323.89 – 430.93
The average of 5 positive integers was initially computed as 30. However, it was discovered later that an error had occurred duri...
25.11% of 239.99 + √143.97 ÷ 12.02 = ?
15.1 + 3.97 – 9.07 × 1.96 = √?Â
(16.16 ×  31.98) + 24.15% of 649.99 = ? + 124.34
157.78% of 4820 + 92.33% of 2840 = ? + 115.55% of 1980
(699.88% of 32) + (80.44% of 400.23) = ? + (11.67)2
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
