Answer:
15.
Step-by-step explanation:
8x - 10 = 110 (vertical angles are equal in measure).
8x - 10+ 10 = 110 + 10
8x = 120
x = 120 /8
x = 15.
(X+2)(3x+1) !!!!!!!!!!!!!!!!!!
Step-by-step explanation:
LHS= sin 3x/sin x - cos 3x/cosx
Taking LCM,
<u>=</u><u>sin3xcosx- cos3xsinx</u>
sinxcosx
<u>=</u><u>sin(3x-x)</u>
sinxcosx
= <u>2sin2x</u>
2sinxcosx
=<u> </u><u>2sin2x</u><u> </u>
sin2x
=2
= RHS.
Proved.
Answer:
x=-13/9
Step-by-step explanation:
8/9=x+7/3
8/9-7/3=x
8/9-(3)7/9=x
8/9-21/9=x
-13/9=x
I hope this helped. If you have any questions, please feel free to ask them.
Answer:
3. = 32 4. = 54 min
Step-by-step explanation: