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3 years ago

Solve with the steps x^3 + 3x^2 – 23x – 20 = 0

Mathematics

1 answer:

Maslowich3 years ago

6 0

This is your answer don’t have it all written out though

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Can you please solve Y=15x?<br> I’m not quite understanding...

GarryVolchara [31]

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3 years ago

Evaluate the definite integral. <br> 1 x4(1 + 2x5)5 dx.

Nata [24]

Answer:

Step-by-step explanation:

Given the definite integral $\int\limits {\dfrac{x^4}{(1-2x^5)^5} } \, dx$ , we to evaluate it. Using integration by substitution method.

Let u = 1-2x⁵ ...1

du/dx = -10x⁴

dx = du/-10x⁴.... 2

Substitute equation 1 and 2 into the integral function and evaluate the resulting integral as shown;

$= \int\limits {\dfrac{x^4}{u^5} } \, \dfrac{du}{-10x^4}$

$= \dfrac{-1}{10} \int\limits {\dfrac{du}{u^5} } \\\\= \dfrac{-1}{10} \int\limits {{u^{-5}du } \\= \dfrac{-1}{10} [{\frac{u^{-5+1}}{-5+1}] \\\\= \dfrac{-1}{10} ({\frac{u^{-4}}{-4})\\\\$

$= \dfrac{u^{-4}}{40} \\\\\\= \dfrac{1}{40u^4} +C$

substitute u = 1-2x⁵ into the result

$= \dfrac{1}{40(1-2x^5)^4} +C$

Hence $\int\limits {\dfrac{x^4}{(1-2x^5)^5} } \, dx$ $= \dfrac{1}{40(1-2x^5)^4} +C$

5 0

3 years ago

Find the Value of a and b in the triangle below select the two answers fro the list of choices

nataly862011 [7]

For angle a it will be 42degrees and for angle b it will be 138degrees and i am 100%sure

3 0

3 years ago

Read 2 more answers

mel-nik [20]

Answer:

-2

Step-by-step explanation:

maybe?

5 0

3 years ago

Read 2 more answers

2. Find the value of x for which l | | m.

joja [24]

2x-5=95 due to the alternate interior angles thm so you just add 5 to 95 to get 2x=100 then divide by 2 to get x=50!

7 0

4 years ago