The life span of a new flameless candle from a certain company is normally distributed. the mean life is 300 hours with a standard deviation of 40 hours. find a range of candle life span which lies within 2 standard deviation, about 95%. between 180 and 340 hours between 260 and 340 hours between 180 and 420 hours between 220 and 380 hours

Write an equation in standard form of the line that passes through the point and has the given slope. ( -2, 4) ; m = -6which of the following best describes the technique used to graph the equation using the slope and y-intercept? y = 5x + 10write the standard form of the equation of the line through the given point with the given slope. point , 4); slope -3/2

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?