Answer:
x=0,y=3
Step-by-step explanation:
Answer: 74.8%
This answer is approximate.
The value is rounded to the nearest tenth of a percent.
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Explanation:
Let,
X = area of the larger circle
Y = area of the smaller circle
Z = area of the shaded region = X - Y
The goal is to compute the ratio Z/X to get the answer we want
Let's find area of the larger circle
Area of circle = pi*(radius)^2
A = pi*r^2
X = pi*8.01^2
X = 64.1601pi
This is the exact area in terms of pi
Now repeat for the smaller circle
A = pi*r^2
Y = pi*4.02^2
Y = 16.1604pi
Subtract those results to find the value of Z
Z = X-Y
Z = 64.1601pi-16.1604pi
Z = 47.9997pi
This is the exact area of the red donut region
Divide Z over X to get the probability of landing in the red region
Z/X = (47.9997pi)/(64.1601pi)
Z/X = (47.9997)/(64.1601) <--- note how the pi terms cancel
Z/X = 0.74812 which is approximate
Convert to a percent
Move the decimal point 2 spots to the right
0.74812 ---> 74.812%
Then round this to one decimal place
74.812% ---> 74.8%
Answer:
Answer to question 7: -2x+5y+9
Answer to question 8: 2x-6y+1
What you should know for this case is that all quadratic functions represent a parabola.
We have then that the function with vertice (-2, 0) is:
y = (x-2) ^ 2
Notice that if you substitute the value x = -2 in the equation then y = 0
Answer:
y = (x-2) ^ 2
(option 3)
Answer:
hey there
Step-by-step explanation:
since x is the first number and y is the second in the bracket (×, y) substitute the later with the number according to its position that is either position x or position y then work out as I have shown in the image I just shared
