One number is 3 less than 4 times the second number. Their sum is 27. Find the numbers. Let x be the second number.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.