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Aneli [31]
3 years ago
15

Tiles

Mathematics
2 answers:
Allisa [31]3 years ago
7 0

Step-by-step explanation:

➡(5x-2)(5x+2)=12

➡5x^2-(2)^2=12

➡25x^2-4=12[/tex]

➡25x^2=12+4=16

IrinaK [193]3 years ago
7 0

Step-by-step explanation:

\rm \mapsto \: (5x - 2)(5x + 2) = 12 \\  \rm \mapsto \: 5x(5x + 2) - 2(5x + 2)=12 \\  \rm \mapsto \:  {25x}^{2}  + 10x - 10x - 4 =12\\  \rm \mapsto \:  {25x}^{2}  - 4=12 \\  \rm \mapsto \:25x^2=12+4 \\  \rm \mapsto \: 25x^2=16

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Please find the general limit of the following function:
valentinak56 [21]

Answer:

The general limit exists at <em>x</em> = 9 and is equal to 300.

Step-by-step explanation:

We want to find the general limit of the function:

\displaystyle \lim_{x \to 9}(x^2+2^7+(9.1\times 10))

By definition, a general limit exists at a point if the two one-sided limits exist and are equivalent to each other.

So, let's find each one-sided limit: the left-hand side and the right-hand side.

The left-hand limit is given by:

<h3>\displaystyle \lim_{x \to 9^-}(x^2+2^7+(9.1 \times 10))</h3>

Since the given function is a polynomial, we can use direct substitution. This yields:

=(9)^2+2^7+(9.1\times 10)

Evaluate:

300

Therefore:

\displaystyle \lim_{x \to 9^-}(x^2+2^7+(9.1 \times 10))=300

The right-hand limit is given by:

\displaystyle \lim_{x \to 9^+}(x^2+2^7+(9.1\times 10))

Again, since the function is a polynomial, we can use direct substitution. This yields:

=(9)^2+2^7+(9.1\times 10)

Evaluate:

=300

Therefore:

\displaystyle \lim_{x \to 9^+}(x^2+2^7+(9.1\times 10))=300

Thus, we can see that:

\displaystyle \lim_{x \to 9^-}(x^2+2^7+(9.1\times 10))=\displaystyle \lim_{x \to 9^+}(x^2+2^7+(9.1\times 10))=300

Since the two-sided limits exist and are equivalent, the general limit of the function does exist at <em>x</em> = 9 and is equal to 300.

8 0
3 years ago
Read 2 more answers
Help pleaseee
Artemon [7]

Answer:

that's it brainliest me

6 0
3 years ago
The perimeter of the pentagon below is 63 units. Find the length of side AB.
Svetlanka [38]

Answer:

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Step-by-step explanation:

The sides add to 63, so:

11+3x+11+x+2+2x+3=63 \\ \\ 6x+27=63 \\ \\ 6x=36 \\ \\ x=6 \\ \\ \implies AB=2(6)+3=15

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2 years ago
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A. Evaluate the expression <br> b. What was the likely error
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Answer is 8 3*1=3 2^3=8 ,it's c because (2^4) is 16 3+1=4
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