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alex41 [277]
3 years ago
8

F(x)=-4x - 5 g(x)=3x - 2 Find( f - g )(x)

Mathematics
2 answers:
Gnesinka [82]3 years ago
5 0
The way to solve this is simple subtraction of like terms after dealing with the negative.
-4x-5-(3x-2)
flip the signs associated with the negative (which is technically a -1)

-4x-5+3x+2
-4x + 3x = -1x=-x
-5+2= -3

-x-3
jok3333 [9.3K]3 years ago
4 0
#1 is 12x² -15x 

#2 is fx-9x

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We test for a hypothesized difference between two population means: H0: μ1 = μ2. The population standard deviations are unknown
Lina20 [59]

Answer:

The degrees of freedom associated with the critical value is 25.

Step-by-step explanation:

The number of values in the final calculation of a statistic that are free to vary is referred to as the degrees of freedom. That is, it is the number of independent ways by which a dynamic system can move, without disrupting any constraint imposed on it.

The degrees of freedom for the t-distribution is obtained by substituting the values of n1​ and n2​ in the degrees of freedom formula.

Degrees of freedom, df = n1​+n2​−2

                                       = 15+12−2=27−2=25​

Therefore, the degrees of freedom associated with the critical value is 25.

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the sum of julian's and kira's age is 58. kira is fourteen less than twice as old as julian. what are their ages?
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olasank [31]
X^2/(x- 9 = 81/(x - 9)
This is the equation for which you want the solution.
Multiplying both sides of the equation by (x - 9) we get
x^2(x - 9)/(x - 9) = 81(x - 9)/(x - 9)
So the (x - 9) goes out from both the denominator and the numerator and then the simplified equation becomes
x^2 = 81
x ^2 = (9)^2
x = 9
So the value of the unknown variable x comes out to be 9.
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