Answer:
11x -8y = -9
Step-by-step explanation:
8x-4y=-4
-3x+4y=5
Subtract the second equation from the first
8x-4y=-4
-(-3x+4y=5)
-----------------------------
Distribute the minus sign
8x-4y=-4
+(3x-4y=-5)
-----------------------------
11x -8y = -9
Answer:
BD = 28
CD = 22
A = 124
C = 56
D = 124
Step-by-step explanation:
The above quadrilateral is a parallelogram
(1) Opposite angles are equal.
(2) Opposite sides are equal and parallel.
(3) Diagonals bisect each other.
(4) Sum of any two adjacent angles is 180°
so
BD = AC = 28
CD = AB = 22
A = 180 - B = 180 - 56 = 124
C = B = 56
D = A = 124
Answer:
The order of operations says that operations must be done in the following order: parentheses, exponents, multiplication, division, addition, and subtraction. You can also create a little phrase to go along with this, like "Please Excuse My Dear Aunt Sally." Whatever you choose, make sure that you know all six steps of the order of operations very well. The order of operations tells us the order to solve steps in expressions with more than one operation. First, we solve any operations inside of parentheses or brackets. Second, we solve any exponents. Third, we solve all multiplication and division from left to right.
Step-by-step explanation:
hope this helps :)
Answer:
A) Rectangle
Step-by-step explanation:
Hope this helps :D
