Answer:
f(-3)=3
Step-by-step explanation:
Plug in -3 for x.
f(-3)=-4(-3)-8
f(-3)=12-8
f(-3)=3
Hope this helps!
If not, I am sorry.
The equation would be 4y=5x 4(x+15)=5x x+15=y
let x be the amount that Shelia deposits each time
let y represent the amount that Sherri deposits each time
4(x+15)=5x
4x+60=5x
-4x -4x
60=x
Check:
x+15=y 60+15=y y=75
4(75)=5(60)
300=300
Shelia deposits $60 each time.
Firstly , before solving the equation , we should know about the chain rule and its formula.
<u>Formula</u><u> </u><u>For</u><u> </u><u>the</u><u> </u><u>Chain</u><u> </u><u>rule-</u>
$\rightarrow$ $\sf\dfrac\pink{dy}\pink{dx}$=$\sf\dfrac\pink{dy}\pink{du}$ $\times$ $\sf\dfrac\pink{du}\pink{dx}$ $\leftarrow$
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$\sf\huge\underline{\underline{Question:}}$
$\sf\small{Differentiate\: x\: the \:function: (3x² - 9x + 5²)}$
$\sf\huge\underline{\underline{Solution:}}$
$\sf{Let\:y = (3x^2 - 9x + 5)^9}$
$\space$
☆ Differentiating both the sides w.r.t.x using chain rule-
$\mapsto$ ![\sf\dfrac{dy}{dx}=](https://tex.z-dn.net/?f=%5Csf%5Cdfrac%7Bdy%7D%7Bdx%7D%3D)
![\sf\dfrac{d}{dx}](https://tex.z-dn.net/?f=%5Csf%5Cdfrac%7Bd%7D%7Bdx%7D)
![\sf{(3x^2 - 9x + 5)^9}](https://tex.z-dn.net/?f=%5Csf%7B%283x%5E2%20-%209x%20%2B%205%29%5E9%7D)
$\space$
$\space$
$\mapsto$
=
$\sf\small{(3x^2-9+5)}$
$\space$
$\space$
$\mapsto$
=
![\times](https://tex.z-dn.net/?f=%5Ctimes)
![\sf(6x-9)](https://tex.z-dn.net/?f=%5Csf%286x-9%29)
$\space$
$\space$
$\mapsto$
=
$\times$ ![\sf{3(2x-3)}](https://tex.z-dn.net/?f=%5Csf%7B3%282x-3%29%7D)
$\space$
$\space$
$\mapsto$
=
$\space$
$\space$
$\sf\underline\bold\green{❍ dy:dx=27(3x^2-9x+5)^8(2x-3)}$
______________________________
Answer:
The length would be 3
Step-by-step explanation:
length x width x height = 27
3 x 3 x 3 = 27
0.191= 19.1%
338mL × 0.191= 64.558mL acid
We round to the nearest tenth, getting a total of 64.6mL acid.