The unit price would be $0.9
The answer for that equation would be 2-5x and 3x +4
The question is incomplete. Here is the complete question.
As a part of city building refurbishment project, architects have constructed a scale model of several city builidings to present to the city commission for approval. The scale of the model is 1 inch = 9 feet.
The model includes a new park in the center of the city. If the dimensions of the park in the model are 9 inches by 17 inches, what are the actual dimensions of the park?
Answer: 81 feet by 153 feet
Step-by-step explanation: <u>Unit</u> <u>Scale</u> is a ratio comparing actual dimensions of an object to the dimensions of model representing the actual object.
In the refurbishment project, the unit scale is given by
1 inch = 9 feet
So, the dimensions of the new park in actual dimensions would be
1 inch = 9 feet
9 inches = x
x = 9.9
x = 81 feet
1 inch = 9 feet
17 inches = y
y = 17.9
y = 153 feet
The actual dimensions of the new park are 81 feet by 153 feet.
Answer:
D. undefined
General Formulas and Concepts:
<u>Calculus</u>
Derivatives
Derivative Notation
Derivative of a constant is 0
Basic Power Rule:
- f(x) = cxⁿ
- f’(x) = c·nxⁿ⁻¹
Derivative Rule [Chain Rule]: ![\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7Bd%7D%7Bdx%7D%5Bf%28g%28x%29%29%5D%20%3Df%27%28g%28x%29%29%20%5Ccdot%20g%27%28x%29)
Trig Derivative: ![\displaystyle \frac{d}{dx}[sinu] = u'cosu](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7Bd%7D%7Bdx%7D%5Bsinu%5D%20%3D%20u%27cosu)
Derivatives of Parametrics: 
Step-by-step explanation:
<u>Step 1: Define</u>


<u>Step 2: Differentiate</u>
- [x Derivative] Basic Power Rule:

- [y Derivative] Trig Derivative [Chain Rule]:
![\displaystyle \frac{d^2y}{dt^2} = cos(t^2) \cdot \frac{d}{dt}[t^2]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7Bd%5E2y%7D%7Bdt%5E2%7D%20%3D%20cos%28t%5E2%29%20%5Ccdot%20%5Cfrac%7Bd%7D%7Bdt%7D%5Bt%5E2%5D)
- [y Derivative] Basic Power Rule:

- [y Derivative] Simplify:

- [Derivative] Rewrite:

Anything divided by 0 is undefined.
Topic: AP Calculus BC (Calculus I/II)
Unit: Differentiation with Parametrics
Book: College Calculus 10e
Answer:
Gasto en postre= $75
Step-by-step explanation:
Dada la siguiente información:
Lusia tiene $500, decide gastar el 15% de esta cantidad en la compra de un postre para despues de la comida.
<u>Para calcular la cantidad a gastar en el postre, debemos usar la siguiente formula:</u>
Gasto en postre= presupuesto total*porcentaje para postre
Gasto en postre= 500*0.15
Gasto en postre= $75