7. What is the sin(90-x)? A. 0.3
B. 0.6
C. 0.9
D. 0.4
E. 0.2
F. 0.5

after trying it my self I got .2 but I'm not sure

The customer price index(cpi), which measures the cost of a typical package of customer goods, was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely. use data points to find such a line and then estimate the requested quantities

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Which geometric principle is used to justify the construction below?