Answer:
A=-2; B=-1
Step-by-step explanation:
3a - 2b + 4 =0
2a -5b -1 = 0
Let's multiple the top equation by 2, and the bottom by -3, and then use addition.
[3a - 2b + 4 =0]*2
[2a -5b -1 = 0]*(-3)
6a-4b+8=0
-6a+15b+3=0
Now add the two equations together:
11b + 11 = 0
Subtract 11 from both sides
11b = -11
Divide both sides by 11
b=-1
Substitute in the first equation:
3a - 2(-1) + 4 = 0
Simplify to get 3a+6 = 0
Subtract 6 from both sides to get 3a = -6
Divide both sides by 3 to get a=-2
Answer:
305.12 square inches
Step-by-step explanation:
The picture of the question in the attached figure
we know that
The area of the window is equal to the area of a rectangle, plus the area of two quarter circles plus the area of the smaller square between the two upper corners
so
Find the area of rectangle
Find the area of the two quarter circle
![A=2[\frac{1}{4}(3.14)(4^2)]](https://tex.z-dn.net/?f=A%3D2%5B%5Cfrac%7B1%7D%7B4%7D%283.14%29%284%5E2%29%5D)
Find the area of the smaller square between the two upper corners
The total area is equal to
Answer:
What are the statements to choose from? Send me a message with the choices.
Step-by-step explanation:
6x-2y=14
+2y +2y
6x=14+2y
Answer:
8/25
Step-by-step explanation:
Answer:
Variable costing
Step-by-step explanation:
The term variable costing is a concept that is used in managerial accounting. Variable costing is a type of costing methodology that includes the variable manufacturing costs. When we say variable manufacturing costs, what we mean essentially is the cost of the inputs of production that are not fixed in price. For example, the machinery are assets and are primarily under the fixed cost. Things like labor cost may not be fixed and can even vary day to day. So therefore, we do not count things like that as variable.
