Answer:
Sets of numbers are ( 27,33) and (-27, -33)
Explanation;
Let the numbers be a and b.
We have their ratio is 9:11
Their difference is 6
( a - b) = 6 or (b - a ) = 6
11a - 11 b = 66 or 11b - 11a = 66
9b - 11 b = 66 or 11b -9b = 66
-2b = 66 or 2b = 66
b = -33 or b = 33
if b = -33, a = -33 + 6 = -27
if b = 33, a = 33-6 =27
So, the sets of numbers are ( 27,33) and (-27, -33)
Answer:
The answer is in Step-by-step explanation
Step-by-step explanation:
x,y,z (-3, 3/2, 2
Hope this helps!!
Answer:
DFE
Step-by-step explanation:
Answer:
1/7 ;
0.0034
Step-by-step explanation:
Given that:
X = 1/14, 1/7, 3/14
n = number of observations = 3
Since, probability of X is equally likely ;
P(X) = Σp(x) = 1 ; p(x) = 1/n = 1/3
The mean, m ;
Σx*p(x) = (1/3 * 1/14) + (1/3 * 1/7) + (1/3 * 3/14)
= 1/42 + 1/21 + 3/42
= (1 + 2 + 3) / 42
= 6 / 42
= 1/7
The variance :
Σx²*p(x) - m²
((1/3) * (1/14)^2) + ((1/3) * (1/7)^2) + ((1/3) * (3/14)^2) - (1/7)^2
= 0.0238095 - 0.0204081
= 0.0034014
= 0.0034
Answer:
1 a. commutative property of multiplication
b. distributive property of multiplication
2 x=23\12
-x = -23\12
-23\12+23\12=0
thus -(-x)+x
