Answer:
x=20°
2.
x=27°
Step-by-step explanation:
sin(x+20)=cos (2x+10)
=sin (90-(2x+10))
so x+20=90-(2x+10)
x+20+2x+10=90
3x=90-30
3x=60
x=60/3=20
2.
2x+14+x-5=90
3x+9=90
3x=90-9=81
x=81/3=27
Answer:
14
Step-by-step explanation:
add the stuff together
Answer:
i'd say it's x=6
Step-by-step explanation:
........
Answer:
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Step-by-step explanation:
Given:
The inequality is

To find:
The solution set for the given inequality.
Solution:
We have,



Divide both sides by 3.

It can be written as

Subtracting 4 from each side, we get


The solution set of the given inequality is (-5,-3).
Therefore, the correct option is A.