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Artist 52 [7]
3 years ago
7

Let f(x) = x − 3 and g(x) = x + 11.Find f(x) ⋅ g(x)

Mathematics
2 answers:
Elodia [21]3 years ago
8 0

For this case we have the following functions:

f (x) = x-3\\g (x) = x + 11

We must find the product of the functions:

f (x) * g (x) = (x-3) (x + 11)

We apply distributive property, which states:

(a + b) (c + d) = ac + ad + bc + bd

So:

f (x) * g (x) = x ^ 2 + 11x-3x-33 = x ^ 2 + 8x-33

Answer:

x ^ 2 + 8x-33

ioda3 years ago
6 0

Answer:   f(x).g(x)=x^2+8x-33.

Step-by-step explanation:  We are given the following two functions ;

f(x)=x-3,~~~~~~~~g(x)=x+11.

We are to find the value of f(x).g(x).

To find the required expression, we need to multiply the expressions for both the functions f(x) and g(x).

therefore, we get

f(x).g(x)\\\\=(x-3).(x+11)\\\\=x(x+11)-3(x+11)\\\\=x^2+11x-3x-33\\\\=x^2+8x-33.

Thus, f(x).g(x)=x^2+8x-33.

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3 years ago
Explain relationship between how radical expressions and rational (fractional) exponents
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Any radical in the form can be written using a fractional exponent in the form . The relationship between and works for rational exponents that have a numerator of 1 as well. For example, the radical can also be written as , since any number remains the same value if it is raised to the first power.

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3 years ago
The mean finish time for a yearly amateur auto race was 186.32 minutes with a standard deviation of 0.305 minute. The winning​ c
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Complete Question

The mean finish time for a yearly amateur auto race was 186.94 minutes with a standard deviation of 0.305 minute. The winning car, driven by Roger, finished in 185.85 minutes. The previous year's race had a mean finishing time of 110.7 with a standard deviation of 0.115 minute. The winning car that year, driven by Karen, finished in 110.48 minutes.

Find their respective z-scores.

 Who had the more convincing victory?

A. Roger​ had a more convincing victory because of a higher z-score.

B. Karen a more convincing victory because of a higher z-score.

C. Roger had a more convincing victory, because of a lower z-score.

D. Karen a more convincing victory because of a lower z-score.

Answer:

The correct option is  D

Step-by-step explanation:

From the question we are told that

  The mean of the current year  is  \mu_c =  186.32 \  minutes

   The standard deviation is  \sigma_c  =  0.305 \  minutes

   The time taken by  the winning car for the current year  is  x =  185.85 \ minutes

  The mean of the previous  year  is  \mu_p =  110.7 \  minutes

   The standard deviation the previous  year  is  \sigma_p  = 0.115  \  minutes

 The time taken by  the winning car for the previous year  is  y =   110.48 \ minutes    

Generally the z-score for current year is mathematically evaluated as

     z_c  =  \frac{x- \mu_c}{\sigma_c }

=>     z_c  =  \frac{ 185.85- 186.32}{0.305 }

=> z_c  = -1.536

Generally the z-score for previous year is mathematically evaluated as

     z_p  =  \frac{y- \mu_p}{\sigma_p }

=>     z_p  =  \frac{ 110.48-110.7}{0.115  }

=> z_p  = -1.913

From the value obtained we see that  z_p  <  z_c , Hence  Karen had a more convincing victory because of the lower z -score.

5 0
3 years ago
Which of the following factors is responsible for the possibility of Moore's Law? The distance between pathways inside silicon c
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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
SOMEONE HELP ! It’s due today along with other two questions
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Answer is B hope this helps
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