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3 years ago

Find the derivative of the function y=x^3-8x^2+21x+1

Mathematics

1 answer:

aleksandrvk [35]3 years ago

6 0

$y=x^3-8x^2+21x+1 \\
y'=3x^2-16x+21$

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The number of hours, t, it takes a boat to travel 15 miles upstream is represented

iogann1982 [59]

The equation of c is an illustration of subject of formula

The equation of c in terms of r and t is c = r - 15/t

<h3>How to determine the equation?</h3>

The equation is given as:

t = 15/(r - c)

Cross multiply

t(r - c) = 15

Divide both sides by t

r - c = 15/t

Subtract r from both sides

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Multiply both sides by -1

c = r - 15/t

Take LCM

$c = \frac{rt - 15}{t}$

Hence, the equation of c in terms of r and t is $c = \frac{rt - 15}{t}$

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brainly.com/question/10643782

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2 years ago

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3 years ago

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A mixture of paint calls for 1/3 of a cup of red paint and 2/3 cups of yellow paint. How many cups of red paint would be needed

garik1379 [7]

Answer:

Step-by-step explanation:

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3 years ago

15. The height and yolume of a cylinder are 4cm and 616cm respectively. Calculate the diameter of the base. (take t = 27 쪽 A. 7c

irakobra [83]

Step-by-step explanation:

Given that,

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Firstly we'll find the base radius of the cylinder.

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According to the question,

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$\longmapsto\rm{\cancel{\dfrac{4312}{88}} = r^2 }\\$

$\longmapsto\rm{49 = r^2 }\\$

$\longmapsto\rm{\sqrt{49} = r }\\$

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Now,

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3 years ago

Use the table to work out the values of a , b , c , and d .

slavikrds [6]

Answer:

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Step-by-step explanation:

Substitute the appropriate values of x into the equation and evaluate

x = - 3 : y = 4 - 2(- 3) = 4 + 6 = 10 → a

x = - 1 : y = 4 - 2(- 1) = 4 + 2 = 6 → b

x = 1 : y = 4 - 2(1) = 4 - 2 = 2 → c

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3 years ago

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