As many points as I can give and a brainliest and a new friend, please help me!!!
Use the formula for the area of a triangle to develop formulas for the following shapes. Use diagrams to support your argument.
a. a parallelogram (the area of a parallelogram is , use the triangle formula to explain where this comes from)
b. a trapezoid (the area of a trapezoid is , use the triangle formula to explain where this comes from)

Can someone me i’m confused. will give brainliest and a whole bunch of points

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

The pet store currently has 30 hermit crabs. over the weekend they sold 15 hermit crabs. what was the inventory before the weekend's sales?