Q1. what are the 2 parts for a circle in standard form? & q2 (6, -1), r=5, write in standard form.
q3 graph x^2 + y^2 = 100
q4 in a triangle a= 9, c= 32 what is b=?
q5 If two tangents touch a circle creating a polygon with angles a, b,c, d. What would a+b+c+d = ?

Which of the following is the correct ratio for converting kilograms to grams

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.