Answer:
Cosine
Step-by-step explanation:
SohCahToa
The sides are: adjacent to the angle and are the hypotenuse.
(hope this helps :P)
(b)
A polynomial has the form
± 
+ ....
the only expression fitting this description is : x² + 2x + 7
The answer is 4140
——————————
Answer:
1:21
Step-by-step explanation:
Easiest trick way to do this is do 26/546 on your calculator (if you got a scientific one) this would simplify this to its lowest fraction which can be converted into a ratio in this case the ratio of teachers to students is 1:21
-5+d/3=5
d/3-5=5
d-3.5/3=5
d-15/3=5
d-15=15
(d-15)+15=15+15
d-15+15=30
d=30
Hope this helps kiddo
