Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical Value ta/2. (b) find the critical value Za/2, or (c) state that neither the normal distribution nor the t distribution applies.
Here are summary statistics for randomly selected weights of newborn girls: n=289, X = 28.1 hg, s = 7.8 hg. The confidence
level is 95%
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

30005

yes ok                                            

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

c.

step-by-step explanation: