Fractions and Decimals \15.60 x 0.30=? 40.68 468 4.68 46.8 40.68 468 4.68 46.8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 1560 x 30 = 46800∴ 15.60 x 0.30 = 4.6800= 4.68 ( Four places of decimal )
Fractions and Decimals (.538 x .538 - .462 x .462) / (1-.924) = ? 1 21 11 31 1 21 11 31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = [ (.538)² - (.462)² ] / .076 = [(.538 + .462)(.538 - .462)] /.076=.076 / .076 = 1
Fractions and Decimals [(0.87)³ + (0.13)³] / [(0.87)² - 0.87 x 0.13 + (0.13)²] = ? 4 1 2 3 4 1 2 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression = ( a³ + b³ )/ (a² + b² - ab) where = 0.87 and b = 0.13= [(a + b ) (a² + b² - ab)] / (a² + b² - ab) = a + b = 0.87 + 0.13= 1
Fractions and Decimals 54.327 x 357.2 x 0.0057 is same as 543.27 x 35.72 x 000.57 54327 x 3572 x 0.0000057 5.4327 x 3.572 x 0.57 5.4327 x 3.572 x5.7 543.27 x 35.72 x 000.57 54327 x 3572 x 0.0000057 5.4327 x 3.572 x 0.57 5.4327 x 3.572 x5.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of decimal places in the given expression = 8Number of decimal places in (A) = 8Number of decimal places in (B) = 9 Number of decimal places in (C)= 7Clearly , the expression in (A) is the same as the given Expression.
Fractions and Decimals (.356 x .365 - 2 x .365 x .106 + .106 x .106) / (.632 x .632 + 2 x .632 x .368 +.368 x .368) = ? .0625 62.5 6.25 .625 .0625 62.5 6.25 .625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = [(.356)² -2 x .356 x .106 + (.106)²] / [(.632)²+2 x .632 x .368 +(.368)²]= (a² -2ab + b²) / (c²+2cd+d²)= (a - b)² / (c + d)²= (.356 -.106)² / (.632 + .368)²= (.25)² = .0625
Fractions and Decimals Convert 0.34 in to a vulgar fraction ? 17/100 17/25 17 17/50 17/100 17/25 17 17/50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.34 = 34/100 = 17/50
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