80.64
because 16 times 12 is 192
if every tile is 2 feet divide 192 by 2
you should get 96 meaning there are 96 tiles
then take 96 and multiply by it by .84 because every tile is 84 cents
you then get 80.64
80-64/80 x 100 = 20%
Ans : 20%
18a+15
making a subject of formular
a=18-15
=3
Answer:
The range of cos(x) is -1 to 1 (with brackets if in interval notation as -1 and 1 can be included) is because the radius of the unit circle is also 1. If the range went past -1 or 1, the unit circle could not define those values, and would turn up as error or undefined. Now, if you replace <em>a </em>in y = acos(x) + b, the range would be different because you amplified the equation and thus the range and radius.
Step-by-step explanation: