Fractions and Decimals Evaluate : [(2.39)² - (1.61)²] / [2.39 - 1.61] 6 3 4 2 6 3 4 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression=(a² - b²) / (a - b)=[(a + b)(a - b)] / (a - b)= (a + b)= (2.39 + 1.61)= 4
Fractions and Decimals (0.16)² - (0.12)² = ? 0.0112 .112 11.2 1.12 0.0112 .112 11.2 1.12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = a² - b² = (a + b)(a - b)Hence, (0.16)² - (0.12)²= (0.16 + 0.12)(0.16 - 0.12)= 0.28 x 0.04 = 0.0112
Fractions and Decimals 450.271 + 369.422 ÷ 0.03 - 108.612 x 2.001 = ? 15532 12532 14532 13532 15532 12532 14532 13532 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 450.271 + (369.422 ÷ 0.03) - (108.612 x 2.001)= 450 + 369/0.03 - (109 x 2) = 450 + 12300 - 218 = 12532
Fractions and Decimals √441.441 + √256.256 = ? 41 37 39 35 41 37 39 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √441.441 + √256.256= √441 + √256= (21 + 16) = 37
Fractions and Decimals What decimal of an hour is a second 0.0025 0.0027 0.0028 0.0026 0.0025 0.0027 0.0028 0.0026 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1 / (60 * 60) = 1 / 3600 = .0027
Fractions and Decimals (0.47 x 0.47 x 0.47 - 0.33 x 0.33 x 0.33) / (0.47 x 0.47 + 0.47 x 0.33 + 0.33 x 0.33) = ? 0.14 14 0.014 1.4 0.14 14 0.014 1.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = [(0.47)³ - (0.33)³] / [(0.47)² + 0.47 x 0.33 + (0.33)²]= [a³ - b³ ] / [ a² + ab + b²] = [(a-b) (a² + ab + b²)] / [(a² + ab + b²)]= (a - b) = (0.47 - 0.33) = 0.14
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