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elena55 [62]
3 years ago
14

Factor 6x4 - 5x2 + 12x2 – 10 by grouping. What is the resulting expression? O (6x + 5)(x2 - 2) O (6x - 5)(x2 + 2) (6x2 + 5)(x -

2) (6x2 - 5)(x2 + 2) ​
Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer:

6x4 - 5x2 + 12x2 – 10 simplified is =6x^4+7x^2−10

6x4 - 5x2 + 12x2 – 10  factored is =(6x2−5)(x2+2)

Step-by-step explanation:

brainliest please?

Mila [183]3 years ago
6 0

Answer:

(6x^{2} - 5)(x^{2} +2)

Step-by-step explanation:

Always arrange in descending powers first.  In this case that is already done.

Try grouping the first two terms and the last two terms first

(6x^{4} - 5x^{2} ) + (12x^{2}  - 10)   Factor out the GCF of both groups

x^{2} (6x^{2}  - 5) + 2(6x^{2} - 5)\\     Note that 6x^{2} - 5 is a factor in each group. That's    

                                           good

Now treat 6x^{2} - 5 as a GCF and you get

(6x^{2} - 5)(x^{2} +2)

Since  6x^{2} - 5  and  x^{2} +2  are both prime, we are finished.  

You can check to see if you are correct by FOILing the answer you got.  OK?

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Which function has two x-intercepts, one at (0, 0) and one at (4, 0)?
muminat

Answer:

y = (x - 2)² - 4

Step-by-step explanation:

I graphed the points on the graph below and found a function that had those points as solutions.

If this answer is correct, please make me Brainliest!

8 0
3 years ago
Iliana was part of a group that was working on changing 0.4 repeated to a fraction. Each member of the group had a different ans
amm1812
\bf 0.444444444\overline{4}\impliedby \textit{and keeps on going}\\\\
-------------------------------\\\\
\textit{let's say }\boxed{x=0.444444444\overline{4}}\quad \textit{ thus }10\cdot x=4.44444444\overline{4}
\\\\\\
\textit{wait a minute! }4.44444444\overline{4}\textit{ is really just }4+0.444444444\overline{4}

\bf \textit{but we know }x=0.444444444\overline{4} \textit{ so then }4+0.444444444\overline{4}=\boxed{4+x}
\\\\\\
\textit{wait a second! }10\cdot x\implies 10x=4.444444444\overline{4}=4+x
\\\\\\
thus\qquad 10x=4+x\implies 10x-x=4\implies 9x=4\implies \boxed{x=\cfrac{4}{9}}

you can check in your calculator.

anyhow, to get the "recurring decimal to fraction", you start by setting to some variable, "x" in this case, then move the repeating part to the left of the point by multiplying it by some power of 10, and then do the equating.
3 0
3 years ago
Read 2 more answers
For a fair coin, suppose you toss the coin 100 times.
Natasha_Volkova [10]

Using the normal distribution, it is found that there is a 0.0005 = 0.05% probability of getting more than 66 heads.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
  • The binomial distribution is the probability of x successes on n trials, with p probability of a success on each trial. It can be approximated to the normal distribution with \mu = np, \sigma = \sqrt{np(1-p)}.

For the binomial distribution, the parameters are given as follows:

n = 100, p = 0.5.

Hence the mean and the standard deviation of the approximation are given as follows:

  • \mu = np = 100(0.5) = 50.
  • \sigma = \sqrt{np(1-p)} = \sqrt{100(0.5)(0.5)} = 5

Using continuity correction, the probability of getting more than 66 heads is P(X > 66 + 0.5) = P(X > 66.5), which is <u>one subtracted by the p-value of Z when X = 66.5</u>.

Z = \frac{X - \mu}{\sigma}

Z = \frac{66.5 - 50}{5}

Z = 3.3

Z = 3.3 has a p-value of 0.9995.

1 - 0.9995 = 0.0005.

0.0005 = 0.05%

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

6 0
2 years ago
Help me get the answer ASAP! For question 9 I don’t want the expressions I want the answer please because I’m confused
rewona [7]

Answer:

answer is 25-(38/8) that is 20.25 pages or 81/4 pages

7 0
3 years ago
F(x)3x+5/x what is f(a+2)
german

Answer:

3a+6+5/(a+2)

Step-by-step explanation:

To do this you replace x with a+2, meaning that 3x+5/x turns into 3(a+2)+5/a+2. Simplified this is 3a+6+5/(a+2)

7 0
3 years ago
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