Answer:
The slope is ![\frac{2}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B8%7D)
Step-by-step explanation:
Take the general equation of a straight line ![y = mx+c](https://tex.z-dn.net/?f=y%20%3D%20mx%2Bc)
Here
is the slope of the line.
So let's get the equation of the line in the question in the same form.
![-48 = 2x-8y](https://tex.z-dn.net/?f=-48%20%3D%202x-8y)
Add
to both sides: ![8y - 48 = 2x](https://tex.z-dn.net/?f=8y%20-%2048%20%3D%202x)
Add
to both sides: ![8y = 2x + 48](https://tex.z-dn.net/?f=8y%20%3D%202x%20%2B%2048)
Divide by
to get it into the general equation: ![y = \frac{2}{8} x + 6](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B2%7D%7B8%7D%20x%20%2B%206)
Now compare it to the general equation to find the value of
. The value of
is the coefficient of
which we can see is ![\frac{2}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B8%7D)
Answer:
(2x^3+4x^2-4x+6) / (x+3) = 2x^2-2x+2 => B
Step-by-step explanation:
The area of a rectangle is A=LW, the area of a square is A=S^2.
W=S-2 and L=2S-3
And we are told that the areas of each figure are the same.
S^2=LW, using L and W found above we have:
S^2=(2S-3)(S-2) perform indicated multiplication on right side
S^2=2S^2-4S-3S+6 combine like terms on right side
S^2=2S^2-7S+6 subtract S^2 from both sides
S^2-7S+6=0 factor:
S^2-S-6S+6=0
S(S-1)-6(S-1)=0
(S-6)(S-1)=0, since W=S-2, and W>0, S>2 so:
S=6 is the only valid value for S. Now we can find the dimensions of the rectangle...
W=S-2 and L=2S-3 given that S=6 in
W=4 in and L=9 in
So the width of the rectangle is 4 inches and the length of the rectangle is 9 inches.
Step-by-step explanation:
We know that,
![Z=\dfrac{X-\mu}{\sigma}](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7BX-%5Cmu%7D%7B%5Csigma%7D)
Where,
X = raw score = 84
μ = mean = 68
σ = standard deviation = 10
Putting the values,
![Z=\dfrac{84-68}{10}=1.6](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7B84-68%7D%7B10%7D%3D1.6)
The percent of his sales that were less than or equal to 84 inches, is
![P(Z\leq 1.6)=0.9452=94.52\%\approx 94.5\%](https://tex.z-dn.net/?f=P%28Z%5Cleq%201.6%29%3D0.9452%3D94.52%5C%25%5Capprox%2094.5%5C%25)
Therefore, the remaining 100-94.5=5.5% were more than 84 inches.
Answer:
y = 24
Step-by-step explanation:
8 : 4 : : y : 48
8 / 4 = y / 48
1 / 2 = y / 48
y = 48 / 2
y = 24