Answer:
SD = 7588.09
Step-by-step explanation:
Check the distribution table attached to for the step by step solution:
The formula for the mean, 

The variance , 

Standard Deviation,

SD = 7588.09
Answer:
Rob is 76 cm tall.
Step-by-step explanation:
Let b = height of bill.
Let m = height of Mary.
Let r = height of Rob.
"the total heigh of bill mary and rob is 180 cm"
b + m + r = 180 Equation 1
"bob* is twice as tall as bill"
*I think you meant Rob is twice as tall as Bill.
r = 2b
"mary is 28 cm taller than bill"
m = b + 28
Substitue r = 2b and m = b + 28 into Equation 1.
b + b + 28 + 2b = 180
4b + 28 = 180
4b = 152
b = 38
r = 2b
r = 2(38) = 76
Rob is 76 cm tall.
Evaluate 5w-\dfrac wx5w− x w 5, w, minus, start fraction, w, divided by, x, end fraction when w=6w=6w, equals, 6 and x=2x=2x,
Sunny_sXe [5.5K]
Answer:
when w=6 and x=2.
Step-by-step explanation:
Given : Expression
when w=6 and x=2.
To find : Evaluate the expression ?
Solution :
Expression 
Substitute, w=6 and x=2



Therefore,
when w=6 and x=2.
Answer:
g = 23/16
Step-by-step explanation:
3/16 = (-5/4) + g
g = 5/4 + 3/16
g = 23/16