Mathematics Past Questions and Answers

If \(y=2 x^{2}+9 x-35\) find the range of values for which \(y<0\).

Mother reduced the quantity of food bought for the family by \(10 \%\) when she found that the cost of living had increased by \(15 \%\) Thus the fracrional increase in the family food bill is now

Given that \(a * b=a b+b+a\) and \(a^{0} b=1+b+a\). Find \((a \cdot b)^{\circ}(a+c)\). if \(a, b, c\) are real numbers.

If the four interior angles of a quadrilateral are \((P+10)^{\circ}\) \((P-30)^{\circ}\) \((2 P-45)^{\mathrm{c}}\), a nd \((P+35)^{\circ}\), then \(P\) is

Simplify \((a-b) /(a+b)-(a+b) /(a-b)\)