Answer:
y = 75
Step-by-step explanation:
The sum of the angles in a quadrilateral = 360°
∠DGF and 80° form a straight angle and are supplementary, hence
∠DGF = 180° - 80° = 100°
Subtract the sum of the 3 angles from 360 for the value of y
y = 360 - (65 + 120 + 100) = 360 - 285 = 75
Answer:
See below
Step-by-step explanation:
Basically, when you have a product to two factors set equal to 0, you can use the Zero Product Property and make two separate equations, both set equal to 0, to find the roots for each factor:


Notice that by plugging these roots back into the equation, either factor will be 0, making the whole expression 0:


Diagonals of the parallelogram are congruent.
Answer:
for what
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
Well, while this is not a full quadratic equation, this can still be worked with, so let's get started.
Taking
, we can simplify this just to make it a bit more professional, to say
(We can do this because of the Symmetric Property of Equality, which states that a=b then b=a).
Now, we can really start by dividing both sides by 6, to get
, and then divide both sides by x to get
.
So, the answer of this quadratic equation is x = 4.