Answer:
1
Step-by-step explanation:
Equation of variance:
Total Variance = sum (i=1, N) {c^2,variance^2}
= c1^2*variance1^2 + c2^2*variance2^2 + .....
Variance of X = 1
Variance of Y = 5
Variance of Y - 2X = (1^2)*(5) - (2^2)**(1)
= 5 - 4 = 1
The answer is 7 because 70 ÷ 10 = 7.
The probability would be 1/2
Answer:
Triangle is isosceles triangle X = 9
Step-by-step explanation:
Step 3:
5x + 20 + 3x + 9x + 7 becomes
5x + 3x + 9x + 20 + 7
Step 4:
(5x + 3x + 9x) + (20 + 7)
Step 5:
17x + 27
If you have any further questions feel free to ask.
Hope this helps
