Answer:
fourth option
Step-by-step explanation:
Using the trigonometric identity
cos²x + sin²x = 1
Divide all terms by cos²x
+
=
which gives
1 + tan²x = sec²x
Answer:
y= (5/4)x + 7
Step-by-step explanation:
(30+6)+(40+7)=86
add all those steps and see what you get
Step-by-step explanation:
Answer:
5% = 0.05
Step-by-step explanation:
Boys:girls = 4/5
boys = 4/(4+5) = 4/9 of the class