A section of a deck is shaped like a trapezoid. For this section, the length of one base is 31 feet, and the length of the other base is 36 feet. The height is 22 feet. What is the area of this section of the deck?

The triangles are similar. what is the value of x? x=

What is sin 7x/4 ? i need on this urgent trig

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.