Answer:
52
Step-by-step explanation:
Given that :
Mean (m) = 78
Standard deviation (s) = 13
Score that is 2 standard deviations below the mean
Using the relation :
Zscore = (x - m) / s
2 standard deviations below the mean means a Zscore of - 2
Hence,
-2 = (x - 78) / 13
Cross multiply
-2 * 13 = x - 78
-26 = x - 78
x = - 26 + 78
x = 52
Score which is 2 standard deviations below the mean is 52
First, add them up. For her first draw, the probability of her getting a tile with an plant on it was 6/9. So when she takes one away, it will be 5/8.
Answer:
34
Step-by-step explanation:
If we know that these angles all add up to 360, then we can simply add up all the expressions, set them equal to 360, and solve for x:
(3x - 6) + 2x + 108 + 88 = 360
Combine like terms:
5x + 190 = 360
Subtract 190:
5x = 360 - 190 = 170
Divide by 5:
x = 170/5 = 34
The answer is B 6:7 because 26-14=12 12:14 and you simplify u get 6:7
Answer:
centre= (2,-3)
radius=2
equation= (x-2)^2+(y+3)^2= 4
Step-by-step explanation:
equation is found by the co-ordinates and the length of the radius
if the co-ordinates (2,-3)
x=2
y=-3
r= 2
so the equation will be like
=(x-2)^2+(y+3)^2=2^2
=(x-2)^2+(y+3)^2=4
Thankyou ^^