The answer
<span>the true answer is A) 4x^2+52x+165=320; x = 2.5
proof:
since </span><span>they want to limit its area to 320 in^2
x must be equal 2.5, because </span>4.(2.5)^2+52(2.5)+165= 25+130+165=320;
the main rule of the area of a triangle is
A= (base x height )/2
let be b the base and h the height
so h=20- 6b
so 50= b x( 20-6b) /2, implies 100/b = 20 - 6b
if b=x, we have 100= 20x -6x² this is equivalent to 6x² - 20x = -100
so the answer is
<span>D) None of the choices are correct.
</span>
<span>the largest dimensions that can be used for the fountain are
</span>
<span>B) x^2+8x+16=800
C) x^2+16=800
</span>
proof
x^2+8x+16=x^2+8x+4², 4² is the area of the square fountain, and x^2+8x should be the remaining of the area, t<span>he total space that the fountain and sidewalk can use is 800, it is less than 800 ft^2.
</span>Use the same method for. x^2+16=800
1/7w-5 ???? That might be right not sure tho
Answer:
it would be 75
Step-by-step explanation:
if add 10+ 10+ 30 + 25 its would be 75
segment addition postulate
sum is the same
Hey there! :D
First, find the slope:
m= (y2-y1)/(x2-x1) (-4,2) and (-6,0)
m= (0-2)/(-6-(-4)
m= -2/(-6+4)
m=-2/-2
m=1
Now, plug that into point slope.
y-y1= m(x-x1)
y-2= 1(x-(-4)
y-2=1(x+4)
y-2=x+4
Add two to both sides.
y=x+6
The y-intercept= 6
I hope this helps!
~kaikers
