Answer:
72 is the height..........
Answer:
yes
Step-by-step explanation:
In trigonometric ratios, the cos (x) = adjacent over hypotenuse.
Therefore, in the diagram, cos (55°) = s/q
To isolate q, divide both sides by s
cos (55°) / s = 1/ q
Then flip both numerators and denominators (raise both sides to the power of -1)
q = s / cos (55°)
Answer is D
4b+21=-3b+21+7b
4b+21=4b+21
it means that the expression shows an identity