There is a 10 inch diameter pizza for $8.99 and a 6 inch diameter pizza for $5 ,which is the better buy

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

For what value of x does 4x = (1/8) x + 5?