When writing a repeating decimal as a fraction, why does the fraction always have only 9s or 9s and 0s as digits in the denominator

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?