Mathematics Past Questions and Answers

Given:<br/>\[<br/>U=\{a,b,c,d,e,f,g,h,i\}<br/>\]<br/>\[<br/>A=\{a,b,c,d\}<br/>\]<br/>\[<br/>B=\{c,d,e,f\}<br/>\]<br/>\[<br/>C=\{b,d,f,h\}<br/>\]<br/>Find:<br/>\[<br/>(A\cup B)\cap C<br/>\]

A radio originally cost ₦18,000 and was sold for ₦15,300 after discount. Find the percentage discount.

Find:<br/>\[<br/>(f\circ g)(-2)<br/>\]<br/>if<br/>\[<br/>f(x)=x+7<br/>\]<br/>and<br/>\[<br/>g(x)=x^2<br/>\]

Evaluate:<br/>\[<br/>72 \div 9 + 5(2)<br/>\]

Given:<br/>\[<br/>f(x)=3x^2+1<br/>\]<br/>Find:<br/>\[<br/>f(-3)<br/>\]