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2 years ago

NO LINKS!!!!

Mathematics

1 answer:

DedPeter [7]2 years ago

6 0

9514 1404 393

Answer:

3. vertical stretch by a factor of 2; shift right 1 and down 1

4. shift left 4 and up 4 (no stretch or shrink)

Step-by-step explanation:

The vertex form equation is ...

y = a(x -h)^2 +k

It represents a vertical stretch of the parent function by a factor of 'a', a right shift of 'h', and an upward shift of 'k'.

Compare the the given equations to the above form to see the transformations.

3. (a, h, k) = (2, 1, -1) ⇒ vertical stretch by a factor of 2; shift right 1, down 1

4. (a, h, k) = (1, -4, 4) ⇒ no vertical stretch; shift left 4, up 4

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Answer:

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Step-by-step explanation:

Perimeter of semicircle = $\frac{2\pi r}{2} + 2r$

Where r = 11 cm

=> P = $\frac{2(3.142)(11)}{2} + 2(11)$

=> P = $34.55 + 22$

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Helen [10]

Answer:

$y= 1.25(2)^{x}$

Step-by-step explanation:

$y= 1.25(2)^{x}$

For x=0

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2 years ago

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larisa86 [58]

Answer:

y = 5.064 - 0.010x

Here, in this question x = 33

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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

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Step 3

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Man your answer is C all the way merry Christmas btw and happy new year

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