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vladimir2022 [97]
3 years ago
6

Desmond is 3 inches taller than Niki.

Mathematics
1 answer:
Colt1911 [192]3 years ago
7 0
Hey, let’s use y to represent Desmond’s height. Since we are trying to find Desmond’s height, we”ll start off with y =
We know that Desmond’s height is equal to Niki’s height + 3 inches. So the answer would be, y = x + 3.
Hope this helps :)
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Solve, (you can use long division if needed) <3
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19.6

SHow work

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A particle moves along the curve below. y = √ 8 + x 3 As it reaches the point ( 1 , 3 ) , the y -coordinate is increasing at a r
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<em>The x-coordinate is changing at 10 cm/s</em>

Step-by-step explanation:

<u>Rate of Change</u>

Suppose two variables x and y are related by a given function y=f(x). If they both change with respect to a third variable (time, for instance), the rate of change of them is computed as the derivative using the chain rule:

\displaystyle \frac{dy}{dt}=\frac{dy}{dx}\cdot \frac{dx}{dt}

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y=\sqrt{8+x^3}

Or, equivalently

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We need to know the rate of change of x respect to t. We'll use implicit differentiation:

\displaystyle 2y\cdot \frac{dy}{dt}=3x^2\cdot \frac{dx}{dt}

Solving for dx/dt

\displaystyle \frac{dx}{dt}=\frac{2y\cdot \frac{dy}{dt}}{3x^2}

Plugging in the values x=1, y=3, dy/dt=5

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7 0
3 years ago
What is the value of 'x' : <img src="https://tex.z-dn.net/?f=4x%20%2B%203%20%3D%2016" id="TexFormula1" title="4x + 3 = 16" alt="
Oksana_A [137]

Answer:

x = 3.25

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

...and is the order of operation.

First, subtract 3 from both sides of the equation:

4x + 3 = 16

4x + 3 (-3) = 16 (-3)

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Next, dvide 4 from both sides:

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x = 13/4

x = 3.25

x = 3.25 is your answer.

~

6 0
3 years ago
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