8x+15=7
answer: x= 1 hope this help
Answer:
61.66
Step-by-step explanation:
1. Multiply
2. divide
Answer:
Step-by-step explanation:
Solve the value of 
:
-Combine 
and 
by subtracting by :
-Subtract 
on both sides:
-Multiply both sides by 
, the reciprocal of 
:
Therefore, the value of is 
.
Answer:
AB = 5
Step-by-step explanation:
Since the triangle is isosceles then the legs are congruent, that is
BC = BA, substitute values
5x - 10 = 3x - 4 ( subtract 3x from both sides )
2x - 10 = - 4 ( add 10 to both sides )
2x = 6 ( divide both sides by 2 )
x = 3
Thus
AB = 3x - 4 = 3(3) - 4 = 9 - 4 = 5
Answer:
<em>Angle x is congruent with the interior angle opposite side 8 (alternate interior angles)</em>
<u>Use tangent:</u>
- tan x = 8/15
- x = arctan (8/15)
- x = 28.1° (rounded)
