The answer is the first one. I am pretty sure.
Answer:
x=-7
Step-by-step explanation:
5-x=3(x+11)
Distribute 3 to the parenthesis. (Multiply)
5-x=3x+33
Subtract 33 from both sides.
-28-x=3x
Add x to both sides,
-28=4x
Divide both sides by 4.
-7=x
Answer:
Step-by-step explanation:
The diagonals of the given parallelogram are QS and RT. We would first determine if its diagonals are congruent.
QS = √(1 - 5)² + (3 - 3)² = 16
RT = √(3 - 3)² + (4 - 2)² = 4
Since QS ≠ RT, it means that they are not congruent and this means that the parallelogram is not a rectangle.
Let us check if the diagonals are perpendicular.
Slope of QS = (3 - 3)/(5 - 1) = 0/4
Slope of RT = (2 - 4)/(3 - 3) = - 2/0
The slopes are not opposite reciprocals. It means that the diagonals are not perpendicular. Therefore, the correct option is
D. QRST is none of these because its diagonals are neither congruent nor perpendicular.
Answer:
b by itself is 12
Step-by-step explanation:
b is pretty much just the square root of 144 which is 12
From the second equation:-
x = 6 - 4y
Substitute this for x in the top equation
