If AD and BD are tangent to circle C, and AD= 13 and BD= 4x-3 find the value of x.

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Write the expression 7x^3-28xy^2 as the product of 3 factors

Which of the functions graphed below has a removable discontinuity?