First, complete the story below so that it can be represented by the equation 14x- 15 = 11x Then, solve for x.
(a) Martina is going to buy x copies of a book,
Store A charges $l per copy, and there is a $1 (Choose one)
Store B charges $[ per copy, with no other charges or discounts.
The total cost (with all charges and discounts) is (Choose one)
(b) For this equation (and story): x=
Hi

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

i would say true? if the unit was informational and it "refreshed your understanding", then true.