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coldgirl [10]
3 years ago
11

Company A: A 2-column table with 5 rows. The first column is labeled hours with entries 5, 12, 20, 29, 42. The second column is

labeled earnings (dollar sign) with entries 340, 404, 460, 530, 630.
Company B: A 2-column table with 5 rows. The first column is labeled hours with entries 4, 9, 20, 32, 39. The second column is labeled earnings (dollar sign) with entries 125, 234, 450, 668, 828.

If Amelia wants to make the maximum amount of money working only 22 hours per week, which company should she work for? Explain your answer.

1) Company A: Using linear regression models from both data sets, she determines that it pays about $14 more.

2) Company A: Using quadratic regression models from both data sets, she determines that it pays about $5 more.

3) Company B: Using linear regression models from both data sets, she determines that it pays about $10 more.

4) Company B: Using exponential regression models from both data sets, she determines that it pays about $8 more.
Mathematics
2 answers:
ryzh [129]3 years ago
8 0

Answer:

The correct answer is C.

Step-by-step explanation:

I took the test

slamgirl [31]3 years ago
8 0

Answer:

The answer is C on Edg2020

Step-by-step explanation:

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Please help... I have no clue
muminat

Answer:

OPTION C:  Sin C - Cos C = s - r

Step-by-step explanation:

ABC is a right angled triangle. ∠A = 90°, from the figure.

Therefore, BC = hypotenuse, say h

Now, we find the length of AB and AC.

We know that:   $ \textbf{Sin A} =  \frac{\textbf{opp}}{\textbf{hyp}} $

and    $ \textbf{Cos A} = \frac{\textbf{adj}}{\textbf{hyp}} $

Given, Sin B = r and Cos B = s

⇒    $ Sin B = r = \frac{opp}{hyp} = \frac{AC}{BC} = \frac{AC}{h} $

⇒ $ \textbf{AC} = \textbf{rh} $

Hence, the length of the side AC = rh

Now, to compute the length of AB, we use Cos B.

$ Cos B = s = \frac{adj}{hyp} = \frac{AB}{BC} = \frac{AB}{h} $

⇒  $ \textbf{AB} = \textbf{sh} $

Hence, the length of the side AB = sh

Now, we are asked to compute Sin C - Cos C.

$ Sin C = \frac{opp}{hyp} $

⇒  $ Sin C = \frac{AB}{BC} $

              $ = \frac{sh}{h} $

               = s

Sin C = s

$  Cos C = \frac{adj}{hyp} $

$ \implies Cos C = \frac{AC}{BC} $

⇒ Cos C = $ \frac{rh}{h} $

Therefore, Cos C = r

So, Sin C - Cos C = s - r, which is OPTION C and is the right answer.

5 0
3 years ago
write the equation of the line perpendicular to y= 5/2x+3 that passes through the point (-7,9). Type an answer using slope-inter
omeli [17]

Answer:

 5y = -2x + 31

Step-by-step explanation:

Given equation:

      y = \frac{5}{2} x + 3

Coordinate  = (-7,9)

Unknown:

Equation of the line perpendicular  = ?

Solution:

The slope - intercept format of a line is given as;

      y = mx + c

where y and x are the coordinates

           m is the slope

           c is the y-intercept

y = \frac{5}{2} x + 3

 From the given equation; slope is \frac{5}{2}

       

A line perpendicular will have a slope that is negative and the inverse of this;

      slope of perpendicular line  = -\frac{2}{5}

Since y= 9 and x = -7;

  So;

            9 = \frac{-2}{5}  x (-7) + C

            9 = \frac{14}{5} + C

           C  = 9 - \frac{14}{5}   = \frac{31}{5}

Now,

       y  =  -\frac{2}{5}x +  \frac{31}{5}

mulitply through by 5;

     5y = -2x + 31

3 0
3 years ago
Round the following numbers to the nearest 10. The numbers they have is 13,21,29
earnstyle [38]

Answer:

13: 10

21: 20

29: 30

Step-by-step explanation:

5 0
3 years ago
What proportion of students are willing to report cheating by other students? A project put this question to an SRS of 180 under
krok68 [10]

Answer:

13.89% of students are willing to report cheating by other students.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 180

Number of students who reported cheating, x = 25

We have to find the proportion of the students are willing to report cheating by other students.

Proportion of students can be calculate as

p = \dfrac{x}{n} = \dfrac{25}{180} = 0.1389\\\\\p = 0.1389\times 100\5\\p = 13.89\%

Thus, 13.89% of students are willing to report cheating by other students.

8 0
3 years ago
Solve the simultaneous equations by substitution x − y = 8, x + 4y = 13
Evgesh-ka [11]

Answer:

x = 9; y = 1

Step-by-step explanation:

4 0
2 years ago
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