Answer:
-14.53
Step-by-step explanation:
-5.23-9.3=-14.53 it's a negative plus a negative
GX is the angle bisector. Answer is C
The polynomial that represent twice the sum of
- x +6 and 7
+ x -1 is : 4
+10
<h3>What is a polynomial?</h3>
A polynomial is any algebraic expression that has the least value of the power of its variable as 2.
When the highest value of the polynomial is 2, it is a called a quadratic expression.
Analysis:
2( -5
-x +6 + 7
+x -1)
2( 2
+ 5) =
4
+ 10
In conclusion, the polynomial that represents the above expressions is 4
+ 10
Learn more about polynomials: brainly.com/question/2833285
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Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1