The correct answer is A
If x - 1/x = 9, then the value of x² + 1/ x² is:
√10000 x √8100 - (50)² = √(?) + (80)²
?% of 120 × 3√343 = 42 × 20
[(36 × 15 ÷ 96 + 19 ÷ 8) × 38] = ?% of 608
1000÷ 250 = ( 3√? × √1444) ÷ ( 3√512 × √361)
60% of 120 – ?% of 64 = 20% of 200
555.05 + 55.50 + 5.55 + 5 +0.55 = ?
Simplify the following expression:
(400 +175) ² - (400 – 175) ² / (400 × 175)
44% of 1250 + 46 × 34 = 40% of ? + 1154
The value of (43-3× (4×6+12/6 ×6-4×5) +4)?
