Answer:
Step-by-step explanation:
- Plug -9/7 in:
÷ 
- -2/3 ÷ -9/7 = 2/3 ÷ 9/7 = 2/3 × 7/9
× 
I hope this helps!
Since the problem is quite vague because the number of
choice per question is not written here. I’ll just put for 4 choices and 5
choices each.
To compute for the 5 choices each:
Mean = np = 20 (1/5) = 4
Standard deviation = sqrt(npq) = sqrt (4*(4/5) = 1.79
To compute for the 4 choices each:
Mean = np = 20 (1/4) = 5
Standard deviation = sqrt(npq) = sqrt (5*(4/5) = 2
Answer:
28
Step-by-step explanation:
Area of a rectangle = width times length therefore the equation is 7 times 4 = 28.
Answer:
(x,y) = (1,9)
Step-by-step explanation:
y = x + 8 and y = 5x + 4
The system of equations that represent the matrix is c
