Answer:
This is quadratic trinomial
Step-by-step explanation:
It has x^2 (square) and consists of 3 parts
The television set has a rectangular shape. The diagonal of this rectangle along with its width and length together form a right angular triangle.
This means that we can apply the Pythagorean theorem which states that:
(diagonal)^2 = (length)^2 + (width)^2
Let the width be w. We know that the length is 0.75 times the width, this means that: length = 0.75 w
Substitute in the above equation:
(20)^2 = (0.75w)^2 + (w)^2
400 = 0.5625 w^2 + w^2
400 = 1.5625 w^2
w^2 = 256
w = 16
This means that the width of the screen is 16 in.
Answer:
the answer is d; the slope is 4, and the y-intercept is 12
Step-by-step explanation:
the slope is actually 4/-1, but the y-intercept is still 12 thow.
