Why would it be unethical to have a control group that wore seatbelts and a treament group that did not

What is the exact circumference of a circle with a radius of 17 mm?

3.8 m 4-7.5 m the area of each of these shapes 5 mm 8.6 mm 6 mm 7.8 mm

126 is decreased to 48 percent of change

If you knew that the vertical intercept for a straight line was 15, that the slope was -.5, and that the independent variable had a value of 8, the value of the dependent variable would be:

Jamie's grandfather has pigs and chickens. She noticed that there is a total of 26 heads and 68 feet among them. How many pigs and chickens does Jamie's grandfather have?

Let v=6i + 9j, and w = - i - 2j. Find 7w + 6v.

24.5 times 8.76 show work

You drive your car 4.5 hours at an average speed of 70 miles per hour. How far did you go

Rewrite the function by completing the square. g (x) = x2 + 152 + 54

Value of sin 440 degrees?