A science quiz has eight multiple choice questions with five choices for each. Find the total number of ways to answer the questions

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle