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Readme [11.4K]
3 years ago
13

Lim as x goes to 0: (2sinxcosx)/(2x^2+x)=

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
8 0
\displaystyle\lim_{x\to0}\frac{2\sin x\cos x}{2x^2+x}=2\left(\lim_{x\to0}\frac{\sin x }x\right)\left(\lim_{x\to0}\frac{\cos x}{x+1}\right)=2(1)\left(\frac1{0+1}\right)=2
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A parallelogram has side length of 9x+12 and 3x-4.what is the perimeter ?
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2(9x+12) + 2(3x-4)
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3 years ago
Find the value of n so that the expression is a perfect square trinomial and then factor the trinomial.
Anna007 [38]

The correct expression is (a) n = 100; (x + 10)^2

<h3>How to determine the value of n?</h3>

The expression is given as:

x^2 + 20x + n

Take the coefficient of x

k = 20

Divide by 2

k/2= 10

Square both sides

(k/2)^2 = 100

The above value represents the value of n

i.e.

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So, we have:

x^2 + 20x + 100

Expand

x^2 + 10x + 10x + 100

Factorize

x(x + 10) + 10(x + 10)

Factor out x + 10

(x + 10)^2

Hence, the correct expression is (a) n = 100; (x + 10)^2

Read more about trinomial at:

brainly.com/question/1538726

#SPJ1

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2 years ago
What is the decimal form for nine and fifteen thousandths?
nikdorinn [45]
The decimal form for nine and fifteen thousandths is 09.15
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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