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lianna [129]
2 years ago
15

I need help please !!!!!!!!!!!!!

Mathematics
2 answers:
Lynna [10]2 years ago
7 0
1. b
2. a
3. c
hope that helped!
Andru [333]2 years ago
6 0

Answer:

  1. b
  2. a
  3. c

Step-by-step explanation:

If the equation is in the form ...

  y = ( )

then replace y with f(x).

If it is not in that form, solve for y so it is in that form.

__

The only equation that needs to have a solution is ...

  y +4 = x

Subtracting 4 from both sides gives ...

  y = x -4   ⇒   f(x) = x -4

The match is ...

  1. f(x) = -3x -4
  2. f(x) = x -4
  3. f(x) = x +4
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You are going to want to cross multiply this, so 5/9 would multiply with 1 and 2/3 would be multiplied by x. Now you have 5/9 = 2/3x. You would divide 2/3 on both sides and get 5/6. 5/6 is your answer.
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A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has d
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Answer:

Read step by step explanation

Step-by-step explanation:

The owner already knows that the limit for the average time delivered pizzas is 38 minutes. So we conclude

1.-The resulting mean from sample data ( x ) ( 27 customers) need to be smaller than 38 minutes, any value of sample above 38 minutes means more time for the delivery action and will indicate a failure for the future project

2.-As sample size is smaller than 30 the test has to be  t-student one tail test to the left

Test hypothesis

Null hypothesis                       H₀                  x  = 38

Alternative hypothesis           Hₐ                  x  <  38

We should test at a significance level α  = 0,05       (α = 5%)

If the result of the test is to accept  H₀  delivery project won´t be implemented, if on the other hand, H₀ is rejected then in the condition of the alternative hypothesis we accept Hₐ the sample indicates that we have a smaller average time than 38 minutes.

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Power bills usually show____.
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D

Step-by-step explanation:

Based on the pricing per kilowatt energy set by the distributor/regulation in the jurisdiction, the due amount to be paid to the distributor may differ;

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Which number is greatest? 2.89 times 10 Superscript negative 8 1.997 times 10 Superscript 2 8.9 times 10 Superscript negative 6
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<h3> The greatest number is 1.997 \times 10^2</h3>

<em><u>Solution:</u></em>

<em><u>Given that the numbers are:</u></em>

2.89 \times 10^{-8}\\\\1.997 \times 10^2\\\\8.9 \times 10^{-6}\\\\5 \times 10^{-6}

We have to find the number that is greatest

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