Answer:
(-3,-11)
Step-by-step explanation:
Compare the given quadratic equation with the general quadratic equation.
a=1, b=6 and c=-2
Subsitute 
for 
in given quadratic equation.
The minimum point is (-3,-11).
Answer:
It would change to 0.04802
Step-by-step explanation:
from this question we have that n became 400
40% of 400
= 160
p* = 160/400
= 0.4
1 - p* =
= 1 - 0.4
= 0.6
at confidence level,
1 - 0.95
= 0.05
alpha/2 = 0.025
z= 1.96
<u>margin of error. E</u>
= 1.96 x √[(0.4 x 0.6)/400]
= 1.96 x 0.0245
= 0.04802
M.E = 0.04802
ok
The mean for the profits of the sales is: 9819.4
The total of all the numbers are: 49097
To find the mean, we have to divide this number by 5:
49097÷5 = 9819.4.
Therefore the mean is 9819.4
PLEASE DO RATE ME AS BRAINLIEST ^ω^
