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waec-mathematics-2019

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53 questions


If 2a =  √64 and b/a = 3, Evalute a2 + b2 A. 25...
if 2a =  √64 and b/a = 3, Evalute a2 + b2 A. 250 B.160 C. 90 D. 48
6 months ago 1 answer(s) 1 votes


Solve the equation x2 + 5x + 6 = 0
solve the equation x2 + 5x + 6 = 0
2 months ago 1 answer(s) 2 votes


Express, correct to three significant figures, 0.003597 ...
Express, correct to three significant figures, 0.003597  A.  0.359    B.  0.004    C.  0.0036...
6 months ago 1 answer(s) 5 votes


Evaluate (0.064)-1/3 A:  5/2 B.  2/5 C.  &...
Evaluate (0.064)-1/3 A:  5/2 B.  2/5 C.  −2/5 D.  −3/2
5 months ago 1 answer(s) 3 votes


Solve y+1 / 2 - 2y-1 / 3 = 4  A. y = 29 B. y = -29 C. y ...
solve y+1 / 2 - 2y-1 / 3 = 4  A. y = 29 B. y = -29 C. y = -19 D. y = 19
3 months ago 1 answer(s) 3 votes


Simplify, correct to three significant figures, (27.63)2&min...
Simplify, correct to three significant figures, (27.63)2−(12.37)2 A.  614  B.  612   
6 months ago 1 answer(s) 4 votes


If  7+y=4(mod8). Find the least value if 10≤y≤30 ...
If  7+y=4(mod8). Find the least value if 10≤y≤30 A. 11 B. 13 C. 19 D. 21 
6 months ago 2 answer(s) 3 votes


If T ={ Prime numbers} and  M = {odd numbers} are subs...
If T ={ Prime numbers} and  M = {odd numbers} are subsets of  μ = { x : 0 < x ≤ 10 and x is an integer } find (T&p...
6 months ago 1 answer(s) 2 votes


Evaluate (log39 - log28)/log39 A. -1/3 B. 1/2 C. 1/3 D. ...
Evaluate (log39 - log28)/log39 A. -1/3 B. 1/2 C. 1/3 D. -1/2
6 months ago 1 answer(s) 3 votes


If 23y = 1111two , find the value of y A. 7 B. 6 C. 5 D....
if 23y = 1111two , find the value of y A. 7 B. 6 C. 5 D. 4
6 months ago 1 answer(s) 4 votes