Answers:
<em>See below.</em>
Step-by-step explanations:
(A) This equation evaluates the cost to ship 100 lbs of wheat, which equals $130:
C(100) = 1.28(100) + 2
C(100) = 128 + 2
C(100) = 130
(B) The cost to ship 250 lbs of wheat would be $322:
C(250) = 1.28(250) + 2
C(250) = 320 + 2
C(250) = 322
(C) If you had $50, you could ship 37.5 lb of wheat:
C(x) = 50
C(x) = 48 + 2
C(x) = 1.28(37.5) + 2
X=width of a coccer pitch
2x-20=length of a soccer pitch
Area (rectangule)=length x width
We suggest this equation:
x(2x-20)=6000
2x²-20x=6000
2x²-20x-6000=0
x²-10x-3000=0
We solve this quadratic equation:
x=[10⁺₋√(100-4*1*-3000)]/2=[10⁺₋√(100+12000)]/2=
=(10⁺₋110)/2
we have two solutions:
x₁=(10-110)/2=-50, invalid solution.
x₂=(10+110)/2=60
x=60
2x-20=2(60)-20=120-20=100
Solution: the length is 100 m, and the width is 60 m.
To check:
Area=100 m*60 m=6000 m²
The twice of width is =2(60 m)=120 m,
20 m less than twice its width is: 120 m-20 m=100 m=the length.
Answer:
Therefore the y-intercept of the function is 4.
Step-by-step explanation:
Intercepts:
The line which intersect on x-axis and y-axis are called intercepts.
y-intercept: The line or function which intersect at y-axis. So when the line intersect at y-axis, X coordinate is zero.
So in the given Function Put x = 0 we will get the y-intercept
Put x =0
Therefore the y-intercept of the function is 4.
Answer:
The slope is 1/5= rise/run
and y-intercepts is -1
Step-by-step
A triangle is 180 degrees. X+first length+second length=180. Then solve
