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The expression 2x(5x - 1) +(3x2 - 7x - 2) is simplified into the form ax 2+ bx + c.What are the values of the coefficients a,b,c?
a:
b:
C:

Answers

Answer 1
Answer:

Step-by-step explanation:

2x (5x - 1) + (3x^2 - 7x - 2)

= 10x^2 - 2x + 3x^2 - 7x - 2

= 13x^2 - 9x - 2

a = 13

b = -9

c = 2

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Happy new year!i wish that everyone is able to fulfil their resolution, and have a better time than they did in 2021

Answers

Happy new year to you too! and thankyou :)

Answer:

thank you it means a lot

Nando has 2 goldfish. Jill has 5 goldfish Cooper has 2 times as many goldfish as Nando and Jill combined

Answers

Answer:

cooper has 14 goldfish

Step-by-step explanation:

because cooper has 2 times as many as Nando (2) and Jill (5) combined so 7 ( 5+2) times 2 is 14. 14 goldfish

Answer:

Step-by-step explanation:

Perform the operation. (10x2 – 10x – 6) + (x+6)

Answers

Answer:

10x² - 9x

Step-by-step explanation:

(10x² - 10x - 6) + (x + 6)

10x² - 10x - 6 + x + 6

10x² - 9x - 6 + 6

10x² - 9x

Need help ASAP What’s the area of a sum

Answers

I believe the answer to you question is going to be 33x^2-50x+8.

Hope this helps!!:))
The answer is C.) or the third one

Enter your answer in the box

____

Answers

Answer:

  \boxed{2144}

Step-by-step explanation:

The sum can be found by adding the parts:

  \sum\limits_(n=1)^(32){(4n+1)}=4\sum\limits_(n=1)^(32){n}+\sum\limits_(n=1)^(32){1}=4\cdot(32\cdot 33)/(2)+32\n\n= 2112+32=\boxed{2144}

__

The sum of numbers 1 to n is n(n+1)/2.

Find the Derivative.
f(x) = -xcos3x

Answers

Answer:

(d)/(dx)(-xcos3x)= 3x \ sin(3x)- cos(3x)

Step-by-step explanation:

Use the Product Rule for derivatives, which states that:

  • (d)/(dx) =[f(x)g(x)]= f(x)g'(x)+f'(x)g(x)

In the function we are given, f(x)=-x \cos3x, we can break it up into two factors: -x is being multiplied by cos3x.

Now, we have the factors:

  • -x \n $cos 3x

Before using the product rule, let's find the derivative of cos3x using the chain rule and the power rule.

  • (d)/(dx)(cos3x)= (d)/(dx) (cos3x) * (d)/(dx) (3x) \n (d)/(dx)(cos3x)= (-sin3x) * 3 \n (d)/(dx) (cos3x) = -3sin(3x)

Now let's apply the product rule to f(x) = -xcos3x.

  • (d)/(dx)(-xcos3x)= (-x)(-3sin3x) + (-1)(cos3x)

Simplify this equation.

  • (d)/(dx)(-xcos3x)= (x)(3sin3x) - (cos3x)

Multiply x and 3 together and remove the parentheses.

  • (d)/(dx)(-xcos3x)= 3x \ sin(3x)- cos(3x)

Therefore, this is the derivative of the function f(x)=-xcos3x.

Hi there!

\large\boxed{f'(x) = -cos3x + 3xsin3x}

f(x) = -xcox3x\n\n\text{Use the product rule and chain rule to solve for the derivative:}\n\n(dy)/(dx)= -cos3x + (-x * (-sin3x) * 3)\n\n= -cos3x + 3xsin3x
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