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3 years ago

What is the answer x[x+2(3x-7)]=22x-65

Mathematics

1 answer:

Bezzdna [24]3 years ago

7 0

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Evaluate the equation. 193b = 212.3

trasher [3.6K]

Answer:

b= 1.1

Step-by-step explanation:

193b= 212.3

divide both sides by 193 to isolate b

212.3÷193=1.1

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2 years ago

Write the equations of three distinct lines that have the same y-intercept,-1.

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3 years ago

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Step-by-step explanation:

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3 years ago

A group of circus bears made a pyramid. 3 bears fell of the top, leaving 3 on the bottom. How many bears made the pyramid?

kvasek [131]

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Step-by-step explanation:

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3 years ago

If y = 3x^3 - 2x and dx/dt equals 3, find dy/dt when x = -2. Give only the numerical answer. For example, if dy, dt = 4, type on

Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

<u><em>Final answer</em></u>:-

$\frac{dy}{dt} = 34( 3 ) = 102$

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3 years ago

What is the answer x[x+2(3x-7)]=22x-65​

What is the answer x[x+2(3x-7)]=22x-65