47 is the answer Since two opposites add up to zero, remove them from the expression, and then you just add up the answers
9. -6xy+2xz
10. b(a-c-3d)
11. -3xy+xz-4xw
also i think that 8 is supposed to be a(10-13)
Area of a triangle:
A= (1/2)(bh)
In this problem we are given:
A= 178.5

b= h+4 in
h= UNKNOWN ("h")
Plug in our values into the area equation and solve for "h":


(multiply each side by 2 to get rid of the 1/2)



(357/21=17)

(solve both inequalities separately)


( a negative height is not possible so, this answer is incorrect.)


Answer: base = (h+4)= (17+ 4)
b= 21 in h= 17inPlease comment with any further questions! :)
Answer:
No. It's 15,609
Step-by-step explanation:
The fifteen thousand represents the 15,000
The six hundred is 600
The nine is 9.
So it is 15,609
Answer
Explanation
The quadratic equation to be solved is
x² + 4x - 4 = 0
The graph of this equation is plotted and attached under 'Answer'.
From the graph, we can see that the solutions of the equation include
x = -4.828 and x = 0.828
The equation has two roots, that is two solutions.
Hope this Helps!!!