6x/6y=6z
X/?Y=1/2Z
36=6
1hole take 1 man x 6 days
1/2 hole needs 1 man with 3 days
Concept: Solution of the given attachment is based on the addition of two vectors as given below.
Consider two vectors P and Q, then resultant of these two vectors is given as,
R = P + Q
To find the addition of G & H vectors. That is G + H =?
In the given figure;
Vector A = - Vector G because both are in opposite directions -----(i)
From the figure,
A + H = F --------------- using the given concept ---------(ii)
Now, shall replace the value of A from equation (i) in equation(ii)
- G + H = F
or, G + (- H) = - F
Since the vector addition of G & H is not equal to F.
Hence, the given statement G + H = F is False.
Answer:
B) (-8, -6, 1)
There are a lot of steps and I don't want to spend the time writing it all out... sorry. :')
Hope this helps :)
Answer:
99% confidence interval bto estimate the average price customers are willing to pay per phone is between a lower limit of $471.356 and an upper limit of $514.
Step-by-step explanation:
Confidence interval = mean + or - Error margin (E)
mean = $492.678
sd = $26.4871
n = 14
degree of freedom = n - 1 = 14 - 1 = 13
confidence level = 99%
t-value corresponding to 13 degrees of freedom and 99% confidence level is 3.012
E = t×sd/√n = 3.012 × $26.4871/√14 = $21.322
Lower limit = mean - E = $492.678 - $21.322 = $471.356
Upper limit = mean + E = $492.678 + $21.322 = $514
99% confidence interval to estimate the average price customers are willing to pay per phone is between $471.356 and $514.
Answer:
66.98
Step-by-step explanation:
