Amplitude and period of y = –3cos(2x + 3) Use your calculator to graph the function and state its symmetry. Find the first positive x-intercept using your calculator’s zero function. Need some help with this.

Use the net as an aid to compute the surface area of the triangular prism. a) 550 m2 b) 614 m2 c) 670 m2 d) 790 m2

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.