Answer:
C. 0.6766
Step-by-step explanation:
The area of the shaded region between the two z-scores
;
Z=-1.3 Z=0.75
In probability notation we have;
Pr(-1.3<Z<0.75)
From the standard normal tables, we have the following cumulative probabilities;
Pr(Z<0.75) = 0.7734
Pr(Z<-1.3) = 0.0968
Pr(-1.3<Z<0.75) = Pr(Z<0.75) - Pr(Z<-1.3)
Pr(-1.3<Z<0.75) = 0.7734 - 0.0968
Pr(-1.3<Z<0.75) = 0.6766
So if the line is linear we can use slope intercept form to find the equation of the points: y=mx+b
To calculate m, the slope we subtract two of the points (I’ll use the first two):
(-1, 1)
(4, 0)
This equals 0-1/4+1, which simplifies to -1/5
So the slope is -1/5 and we can put that into slope intercept form along with a point to get b, the y-intercept.
So, y=-1/5x+b
Now we substitute x and y with a point.
1=-1/5(-1)+b
1=1/5+b
b=4/5
So the equation is:
y=-1/5x+4/5
I hope this helps!
Answer:
square inches
Step-by-step explanation:
For the rectangular prism in the middle:
For the left triangular prism:
For the other right triangular prism, it's the same.
Let's add now to find the surface for the whole ramp.
Hope this is helpful to you
A line is 180 degrees so write x+(4x-20)=180