QUICK PLEASE HELP Which equation represents the function on the graph? f(x)=sin 1/2x
f(x)=cos 1/2x
f(x)=cos2x
f(x)=sin2x

The actual length of side t is 0.045 cm. use the scale drawing to find the actual side length of w. a) 0.06 cm b) 0.075 cm c) 0.45 cm d) 0.75 cm

Which best describes the transformation that occurs in the graph? a) dilation b) reflection c) rotation d) translation

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed