How to identify if the problem is a sample deviation problem or a population deviation problem?

Mathematics

1 answer:

ASHA 777 [7]3 years ago

7 0

Answer:

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Functions f(x) and g(x) are shown below:.

kobusy [5.1K]

First we will find the derivative of each function and equate it to zero.
f` ( x ) = 6 x + 12
6 x + 12 = 0
6 x = - 12
x = - 2
f ( - 2 ) 0 12 - 24 + 16 = 4
f ( x ) min = 4
g` ( x ) = 4 cos ( 2 x - π )
4 cos ( 2 x - π ) = 0
cos ( 2 x - π ) = 0
2 x - π = 3π / 2
2 x = 5π /2
x = 5π/4
g ( 5π/4 ) = 2 sin ( 5π/2 - π ) + 4 = 2 ( sin 3π/2 ) + 4 = -2 + 4 = 2
g ( x ) min = 2 ( this is the smallest minimum value )

3 0

4 years ago

A wood piece 100 cm long cut into two pieces so that the longer piece is 10 cm long than twice the length of shorter piece. What

lawyer [7]

For this case we propose a system of equations:

x: Let the variable representing the length of the longer piece

y: Let the variable representing the length of the shorter piece

According to the statement data we have:

$x + y = 100\\x = 10 + 2y$