. in
A cincle with redius 21 mm
А
A quarten circle redius 6mm
work out total lenth of the whole
circle and a quarter circle
Give
your answers in the form are to
Where a
and b
are integers​

Which shows one way to determine the factors of  x3  +  5x2  –  6x  –  30 by grouping? x(x2  –  5)  +  6(x2  –  5)x(x2  +  5)  –  6(x2  +  5)x2(x  –  5)  +  6(x  –  5)x2(x  +  5)  –  6(x  +  5)

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?