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Neporo4naja [7]
3 years ago
12

-4*7= Please hel p...................

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
8 0

Answer:

-28

Step-by-step explanation:

makkiz [27]3 years ago
8 0

Answer:

-28

Step-by-step explanation:

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The data show the number of viewers for television stars with certain salaries. Find the regression​ equation, letting salary be
larisa86 [58]

Answer:

y = 5.064 - 0.010x

Here, in this question x = 33

y = 4.734 million views

In this question data is missing and I filled it out and calculated the questions accordingly. Please refer to the attachment for the data calculated.

Step-by-step explanation:

First of all, this question is incomplete. It lacks the data needed to calculate the required things.

So, I  figured out the question and I will try my best to solve the question at hand.

I have calculated the some data sheet in excel. Please refer to the attachment for that data.

let a be the salaries

b be the viewers

S_{aa} = ∑a^{2}  - \frac{ Summtion  a^{2} }{n}

S_{aa} = 7522.8571

S_{bb} = ∑b^{2}  - \frac{ Summtion  b^{2} }{n}

S_{bb} = 47.1943

S_{ab} = ∑ab^{}  - \frac{ Summtion  a x Summation b^{} }{n}

S_{ab} = -76.8286

Now the slope of the required regression equation is:

Slope =  S_{ab}/S_{aa} = -76.8286/7522.8571 = -0.010

And the intercept of the required regression equation:

intercept = \frac{1}{n} x (∑b - slope x ∑a) = 5.064

So, the regression equation will be:

y = intercept + slope x

y = 5.064 - 0.010x

Here, in this question x = 33

y = 5.064 - 0.010 (33)

y = 4.734 million views

7 0
2 years ago
The data shows the number of miles Troy ran last week. 12, 5, 8, 4, 10, 4, 6 What is the median number of miles Troy ran?​
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Answer:

Step-by-step explanation:

8 0
3 years ago
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Mary has a rectangular garden that measures 15 yards by 6 yards. One of the long sides runs along a wall, and Mary wishes to use
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Mary will need 27 yards of fencing to enclose her garden. She has 90 square yards for planting.

7 0
3 years ago
F(x) = 8 – 3x<br>Evaluate f(9)​
Readme [11.4K]
F(x) = 8 - 3x

f(9) = 8 - 3(9)
= 8 - 27
= -19

hope this helps!
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2 years ago
Translate the phrase into a math expression 12 less than twice a number
Amiraneli [1.4K]

Answer:

D

Step-by-step explanation:

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