Rule of trigonometric functions:-
sin a = cos(90 - a)
Here a = 90°.
sin 90 = cos (90 - 90)
1 = cos 0.
cos 0 = 1.
So the cos 0 = 1.
Answer:
x > -3
Step-by-step explanation:
-2x < 9 - 3
-2x < 6
-x < 3
x > -3
She would need to but 48 videos to get the cash prize. Hope this helps :)
Answer:
there are 1250 readers
Step-by-step explanation:
r = readers
4 percent of readers sent letter = 50 recieved letters
r * 4 percent = 50
r * .04 =50
divide by .04 on each side
r = 50/.04
r =1250
Answer:
(5,4)
Step-by-step explanation:
