Resolver los siguientes sistemas de ecuaciones con el método de sustitución
A) 2x-3y=-6
x + y = 7
B) 8x+5y=-28
3x + 2y =-11
Resolver los siguientes sistemas de ecuaciones con el método de suma y resta
A) 5x+6y=20
4x-3y=-23

Find the area of an equilateral triangle with a side of 6 inches

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

Askateboard ramp is in the shape of a right triangle what is the height of the ramp