PLS PLS help!

Mathematics

1 answer:

Leto [7]2 years ago

4 0

9514 1404 393

Answer:

y = 3x^2 +30x +69

Step-by-step explanation:

Transformations work this way:

g(x) = k·f(x) . . . . vertical stretch by a factor of k

g(x) = f(x -h) +k . . . . translation (right, up) by (h, k)

So, the translation down 2 units will make the function be ...

f(x) = x^2 ⇒ f1(x) = f(x) -2 = x^2 -2

The vertical stretch by a factor of 3 will make the function be ...

f1(x) = x^2 -2 ⇒ 3·f1(x) = f2(x) = 3(x^2 -2)

The horizontal translation left 5 units will make the function be ...

f2(x) = 3(x^2 -2) ⇒ f2(x +5) = f3(x) = 3((x +5)^2 -2)

The transformed function equation can be written ...

y = 3((x +5)^2 -2) = 3(x^2 +10x +25 -2)

y = 3x^2 +30x +69

The attachment shows the original function and the various transformations. Note that the final function is translated down 6 units from the original. That is because the down translation came before the vertical scaling.

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PLEASE HELP MEEEEE!!!!!!!

OverLord2011 [107]

Answer:

Cheese: $4\frac{3}{8}$
Milk: $1\frac{2}{3}$
Pasta: $6\frac{1}{4}$

Step-by-step explanation:

Cheese:

$1\frac{3}{4} = \frac{7}{4}$
Set up a proportion: $\frac{\frac{7}{4} }{4} = \frac{x}{10}$
Cross multiply, then divide: 10 × 7/4 = 17.5, 17.5 ÷ 4 = 4.375
$4.375 = 4\frac{3}{8}$

Milk:

Set up a proportion: $\frac{\frac{2}{3} }{4} = \frac{x}{10}$
Cross multiply, then divide: 10 × 2/3 = $6\frac{2}{3}$ , $6\frac{2}{3}$ ÷ 4 = $1\frac{2}{3}$

Pasta:

$2\frac{1}{2} = \frac{5}{2}$
Set up a proportion: $\frac{\frac{5}{2} }{4} = \frac{x}{10}$
Cross multiply, then divide: 10 × 5/2 = 25, 25 ÷ 4 = 6.25
$6.25 = 6\frac{1}{4}$

I hope this helps!

4 0

3 years ago

What's the correlation coefficient of this date . 10,11,16,9,7,15,16,10,96,51,62,58,89,81,46,51

dem82 [27]

Assuming the question is in the wrong format and"date" is data.
I chose X= 10,11,16,9,7,15,16,10 and Y= 96,51,62,58,89,81,46,51
the correlation cooefficent is -0.3351