We have that
tan x=5
we know that
tan x =sin x/ cos x
sin x/ cos x=5------> squaring-----> sin² x/cos² x=25
remember that
sin² x+cos² x=1-----> cos² x=1-sin² x
substitute
sin² x/[1-sin² x]=25
sin² x=25-25*sin² x
26*sin² x=25
sin² x=25/26
sin x=5/√26
cos² x=1-(5/√26)²----> 1-(25/26)----> 1/26
cos x=1/√26
the answers are
sin x=5/√26
cos x=1/√26
Step-by-step explanation:
2x + 5 = I / 2 ×16
2x=3
x=3/2
Answer: $170
Step-by-step explanation:
15% of 200 is equal to $30.
200 - 30 = 170
The answer to the question is 170.
Remark
The five is after the decimal point. The 10 in that form is tenths. It represents a number in the denominator. So you would write it as 5/10 and say it as 5 tenths.
The answer is D.
2 tenths and 5 hundredths.
