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:
15%.
Step-by-step explanation:
3200 x .15 = 480
3200 - 480 = 2720
Feel free to let me know if you need more help! :)
Answer:
That is correct
Step-by-step explanation:
Question 2: B
(x+4) is canceling out so it is the hole.
x+4=0 and x= -4 is the hole.
(x+1)=0 is vertical asymptote so x= -1 is vertical asypmtote.
Question 3: D
x²-5x-14 factors to (x-7) and (x+2)
(X+2 )cancel outs so it is a hole at x= -2
x-7=0 and x=7 is a vertical asymptote
