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Marysya12 [62]
4 years ago
9

Find the real solutions of the equation. 8 x Superscript 2 divided by 3 Baseline minus 63 x Superscript 1 divided by 3 Baseline

minus 8 equals 0 What is the solution​ set? Select the correct choice below and fill in any answer boxes within your choice.
Mathematics
1 answer:
zhenek [66]4 years ago
8 0

Answer:

-((sq.rt.4737)-63)/16 & ((sq.rt.4737)-63)/16

Step-by-step explanation:

8x^2/3 - 63x^1/3 - 8 = 0

Have to use the quadratic formula

(-b +- sq.rt.b^2-4ac)/2a

gives -((sq.rt.4737)-63)/16

and ((sq.rt.4737)-63)/16

where a = 8/3, b = -63/3, & c = -8

hope that's right.

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A Niffler is a magical creature who loves to collect shiny objects and store them in their pouch, much like a kangaroo. The amou
Fudgin [204]

Answer:

Probability that a Niffler can hold more than 32 pounds of shiny objects in their pouch is 0.1515.

Step-by-step explanation:

We are given that the amount a Niffler can hold in their pouch is approximately normally distributed with a mean of 25 pounds of shiny objects and a standard deviation of 6.8 pounds.

Let X = <u><em>amount a Niffler can hold in their pouch</em></u>

So, X ~ Normal(\mu=25,\sigma^{2} =6.8^{2})

The z score probability distribution for normal distribution is given by;

                                Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 25 pounds

            \sigma = standard deviation = 6.8 pounds

Now, the probability that a Niffler can hold more than 32 pounds of shiny objects in their pouch is given by = P(X > 32 pounds)

  P(X > 32 pounds) = P( \frac{X-\mu}{\sigma} > \frac{32-25}{6.8} ) = P(Z > 1.03) = 1 - P(Z \leq 1.03)

                                                             = 1 - 0.8485 = 0.1515

<em>The above probability is calculated by looking at the value of x = 1.03 in the z table which has an area of 0.8485.</em>

<em />

Hence, the probability that a Niffler can hold more than 32 pounds of shiny objects in their pouch is 0.1515.

4 0
3 years ago
Please help!!!!!!!!!!!!!!!!!!!!
Rama09 [41]

Answer:

a)smaller b)equivalent

Step-by-step explanation:

greater because the median height of the indoor plant is 1 cm whereas the full sunlight plant's is 2.5 cm

equivalent because  the ratio of growth is limited due to natural circumstance's (standardization)

6 0
3 years ago
Give one combination of two factors whose product is 0.36, of one of the factors is a whole number greater than 1?
KiRa [710]
240 & .001 i think that this is the answer

6 0
4 years ago
The probability of picking a red marble from a bag is 2/7 what are the odds against picking a red marble.
almond37 [142]

The answer is 5/7 because if 2/7 is with the red marble then the res would be against the red marble and that is 5/7

Please mark brainliest.

3 0
4 years ago
Read 2 more answers
Consider the equation
sergij07 [2.7K]

Answer:

B. (-6, -9)

D. (12, 3)

Step-by-step explanation:

y=mx+b is the format for this problem.

2/3 is m and -5 is b

The b is the y-intercept which is the point where the line crosses from one side of the graph to the other horizontally. You can see at -5, that is where that happens.

Then, to find the second point, you would move the -5 up 2 and right 3 points because the slope is 2/3.

You can then look at another point of the graph to find (-6, -9)

*Changed my answer from just B to B and D

4 0
2 years ago
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