Number System Find the least value of 3x + 4y if x2y3 = 6. 3 10 7 6 3 10 7 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1965 1955 1975 1945 1965 1955 1975 1945 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because (x + y)² = x² + y² + 2xy∴ x² + y² = (x + y)² - 2xy∴ x² + y² = (61)² - 2 x 888= 3721 - 1776 = 1945
Number System (164 x 175) x ? = 258300 5 11 2 9 5 11 2 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System What is the difference between the local value of 7 and 5 in the number 2574? 413 430 403 570 413 430 403 570 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
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