Answer:
84.1379%
Step-by-step explanation:
122 / 145 = 0.841379
(0.841379)(100) = 84.1379%
<span>The answer would be letter D. 476 and 690
Use Z score which is calculated as (GMAT score - mean)/ Standard Deviation.
Look up tables of Z score to get Pr.'s. The tables only show positive values because the normal distribution is symmetrical, so if you get a negative using the formula above it only indicates that your.
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Answer: I am very confused on the question you are asking next time be more spacific
Step-by-step explanation:
Answer:
The answer is 3/5.
Step-by-step explanation:
It is given that there are 30 students in a class and only 18 students own a pet so you write it as :
no. of students / total students
= 18/30
= 3/5
Answer:
Correct option: A
(x + 7)^2 + (y + 10)^2 = 13
Step-by-step explanation:
First we need to find the center of the circle. We can find it calculating the midpoint of the diameter.
the x-coordinates of the diameter are -4 and -10, so the midpoint is:
(-4 -10)/2 = -7
the y-coordinates of the diameter are --8 and -12, so the midpoint is:
(-8 -12)/2 = -10
Now we need to find the radius of the circle, so we find the diameter and then find half of it.
The lenght of the diameter is the distance of the endpoints:
D = sqrt((-4+10)^2 + (-8+12)^2) = 7.21
radius = 7.21/2 = 3.605
The generic equation of the circle is:
(x - xc)^2 + (y - yc)^2 = r^2
So we have:
(x + 7)^2 + (y + 10)^2 = 13
Correct option: A
