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2 years ago

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Mathematics

1 answer:

ipn [44]2 years ago

7 0

Answer2.0

Step-by-step explanation:

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Please do 41 and 46. Please show your work and explain how you did it. Thank you!

cupoosta [38]

$8x^4-24x^3+18x^2=2x^2(4x^2-12x+9)=2x^2(4x^2-6x-6x+9)\\\\=2x^2[2x(2x-3)-3(2x-3)]=2x^2(2x-3)(2x-3)$

$x^2(x-1)-25(x-1)=(x-1)(x^2-25)\\\\=(x-1)(x^2-5^2)=(x-1)(x-5)(x+5)\\\\Used:\ a^2-b^2=(a-b)(a+b)$

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2 years ago

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How do i solve the following question 2x + 3 = 9

Mademuasel [1]

Answer: x = 3

Step-by-step explanation: To solve for x in the equation you see here, our goal is to get x by itself.

Our first step will be to isolate the term containing x which in this case is 2x. To isolate 2x, we have to get rid of this +3 by subtracting from both sides of the equation.

On the left, +3 -3 cancels and we're left with 2x. On the right, 9 - 3 simplifies to 6.

So now we have the equation 2x = 6.

To get x by itself since it's being multiplied by 2, we just to divide by 2 on both sides of the equation. On the left, the 2's cancel and we're left with x. On the right, $\frac{6}{2}$ simplifies to 3 so our answer is x = 3.

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2 years ago

Suppose that the function g is defined for all real numbers as follows

Talja [164]

Answer:

-9

Step-by-step explanation:

-(-2-1)^2

-(1-1)^2

x>2 , so g(x) = 3

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2 years ago

There are 250 wolves in a national park. the wolf population is increasing at a rate of 16% per year. write an exponential model

Helga [31]

$\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &250\\ r=rate\to 16\%\to \frac{16}{100}\dotfill &0.16\\ t=\textit{elapsed time} \end{cases} \\\\\\ A=250(1 + 0.16)^{t}\implies A=250(1.16)^t \\\\[-0.35em] ~\dotfill$

$A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\dotfill &1000\\ P=\textit{initial amount}\dotfill &250\\ r=rate\to 16\%\to \frac{16}{100}\dotfill &0.16\\ t=\textit{elapsed time} \end{cases} \\\\\\ 1000=250(1.16)^t\implies \cfrac{1000}{250}=1.16^t\implies 4=1.16^t \\\\\\ \log(4)=\log(1.16^t)\implies \log(4)=t\log(1.16) \\\\\\ \cfrac{\log(4)}{\log(1.16)}=t\implies \stackrel{\textit{about 9 years and 4 months}}{9.34\approx t}$

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1 year ago

Which expressions are equivalent to 3(x + 3y + 2x − y)?

Irina-Kira [14]

3(x + 3y + 2x − y) = 3(3x + 2y)
= 9x + 6y
See if any of these match an answer option.

8 0

2 years ago

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