Answer:
Probability to solve 7 problem will be equal to 
Step-by-step explanation:
It is given total number of question = 10
She can solve 8 of them from 10 questions
We have to find the probability that she can solve 7 question
Probability will be equal to ratio of favorable outcome to total sample space
Favorable outcome will be equal to 
Total sample space 
So probability will be equal to 
So probability to solve 7 problem will be equal to
Answer:
i think it is 51 degrees
Step-by-step explanation:
To find the circumcenter, solve any two bisector equations and find out the intersection points. The given are <span>A(1,1), B(0,2), and C(3,-2).
Midpoint of AB = (1/2, 3/2) - You can get the midpoint by getting the average of x-coordinates and y-coordinates.
Slope of AB = -1
Slope of perpendicular bisector = 1
</span>Equation of AB with slope 1 and the coordinates (1/2, 3/2) is
<span>y - (3/2) = (1)(x - 1/2)
</span><span>y = x+1
Do the same for AC
</span>Midpoint of AC = (2, -1/2)
Slope of AC = -3/2
Slope of perpendicular bisector = 2/3
Equation of AC with slope 2/3 and the coordinates (2, -1/2) is
y - (-1/2) = (2/3)(x - 2)
y = -11/6 + 2x/3
So <span>the perpendicular bisectors of AB and BC meet
</span>y = x+1
y = -11/6 + 2x/3
To solve for x,
(-11/6 + 2x/3) = (x+1)
x= -17/2
Now get y by substituting
y = (-17/2) + 1
y = -15/2
The circumcenter is (-17/2, -15/2)
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9,500 is ten times more than 950, the way to figure it out is just to multiply it by 10. 950*10=9,500 ANSWER: 9,500
