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mixer [17]
3 years ago
12

(x2 − 8x + 5) − (−3x2 + 5x − 9)

Mathematics
1 answer:
julia-pushkina [17]3 years ago
7 0
(X²-8X+5)-(-3X²+5X-9)
=X²-8X+5+3X²-5X+9
=4X²-13X+14
That's your answer lovely~
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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
Fill in the boxes?? Thank youuu
yarga [219]

Answer:

-8 and the next box is -3

Im pretty sure thats right

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!!!!!!!!!!!!!
melisa1 [442]

Answer:

The answer is the option D

m∠BED=135\ degrees

Step-by-step explanation:

we know that

If lines L and M are parallel

then

m∠CBE=m∠BED ------> by alternate interior angles

so

we have

m∠CBE=135\°

therefore

m∠BED=135\°

3 0
3 years ago
Read 2 more answers
What is 525/1000 in simplest form?
KiRa [710]
525/1000 = 105/200 = 21/40
8 0
3 years ago
How do I find the scale factor of a dilation?
kobusy [5.1K]
You simply need to compute the ratio between the length of the segment
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