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Grace [21]
3 years ago
12

BRAINLIST!!! The area of Alex's room is 168 square feet. If his room is a rectangle and one side is 12 feet, how long is the oth

er side.
Write an equation to find the missing length of Alex's room. Let x = missing length in feet

Solve to find the missing length of Alex's room
Mathematics
1 answer:
Cloud [144]3 years ago
6 0

Answer:

the missing length is 14 feet.

Step-by-step explanation:

a = L × W

168ft² = 12 × W     - divide both sides of the equation by 12

                             - 168 ÷ 12 = 14

168ft² = 12 × 14

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Cual es el resultado de esta derivada? y=³√3x³-2x+5
Taya2010 [7]

Queremos derivar la expresión dada, obtendremos el resultado:

y' = \frac{3x^2 - 2}{(3x^3 - 2x + 5)^{2/3}}

<h3 /><h3>Derivada de la composición:</h3>

Asumo que la expresión dada es:

y = \sqrt[3]{3x^3 - 2x + 5} = (3x^3 - 2x + 5)^{1/3}

Para derivar esto primero usamos la regla de la composición, si:

f(x) = g(h(x))

entonces la derivada de la función f(x) se puede escribir como:

f'(x) = g'(h(x))*h'(x)

Usando está regla y tomando:

  • g(x) = x^(1/3)
  • h(x) = 3x^3 - 2x + 5.

Obtendremos:

y = (1/3)*\frac{3*3x^2 - 2}{(3x^3 - 2x + 5)^{2/3}} = \frac{3x^2 - 2}{(3x^3 - 2x + 5)^{2/3}}

Lo cual nos da la derivada deseada.

Sí quieres aprender más sobre derivadas, puedes leer:

brainly.com/question/25827985

8 0
3 years ago
Given points J(1, 4), A(3,5), and G(2, 1), what arethe coordinates of AJ'A'G' when reflected overthe x-axis?
lilavasa [31]

Reflection across the x-axis:

undefined

y = − f ( x ) y = -f(x) y=−f(x) The concept behind the reflections about the x-axis is basically the same as the reflections about the y-axis.

7 0
1 year ago
PLEASE HELP I ONLY HAVE 3 MINUTES LEFT :(
Lemur [1.5K]

Answer:

D, -5x +12

Step-by-step explanation:

y = -5x + b

2 = -5(2) + b

2 = -10 + b

b =12

y= -5x +12

3 0
3 years ago
The equation x + y = z relates the whole numbers x, y, and z. How does z compare to x? Y is z less than x. Y is z more than x. X
rewona [7]

Answer:

x is y less than z

Step-by-step explanation:

The given equation is x + y = z

This equation relates the whole numbers x, y, and z.

This equation can be rearranged to make x the subject of the formula or to make y the subject of the formula. When this is done, the relationship between the terms or numbers would be clearly expressed.

Making y the subject of the formula, it becomes

y = z-x (this shows that z is greater than y by x)

Making x the subject of the formula, it becomes

x = z-y (this shows that z is greater than x by y)

Looking at the options given, the correct comparisons between z and x is

x is y less than z

7 0
3 years ago
The equation, y=25x, represents the cost, y, in dollars, of x cubic yards of mulch at the garden shop
Irina18 [472]

Answer:

The cost is $75

Step-by-step explanation:

Given

y = 25x

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The required means that: x = 3

Plug in x = 3\\ to y = 25x

y = 25 * 3

y = 75

<em>The cost is $75</em>

5 0
3 years ago
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