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3 years ago

Analyze this student's work. What did the student do correctly? What did he do incorrectly?

Mathematics

1 answer:

saw5 [17]3 years ago

8 0

I don’t think he did distributive property

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How would you write 1 - x^4 before you divide it by x - 1?

devlian [24]

Order your terms by the powers of exponents in decreasing order (as is the case with pure number division hundreds, tens, ones, tenths, etc, etc) as x^n, x^n-1 etc...

(-x^4+1)/(x-1)
-x^3 rem -x^3-1
-x^2 rem -x^2-1
-x rem -x-1
-1 rem 0

(x-1)(-x^3-x^2-x-1)

(x-1)(-x^3-x-x^2-1)

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4 years ago

Please help me with this question.

elixir [45]

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3 years ago

Information on a packet of seeds claims that the germination rate is 92%. The packet contains 160 seeds.

xenn [34]

Answer: a. N(0.92, 0.0215)

Step-by-step explanation:

For population proportion (p) and sample size n, the mean and standard deviation is given by :-

The sampling distribution model for p is given by :_

$N(\mu_p,\ \sigma_p)$

, where

$\mu_p=p \\ \sigma_p=\sqrt{\dfrac{p(1-p)}{n}$

We assume that the seeds are randomly selected.

Given : Information on a packet of seeds claims that the germination rate is 92%.

i.e. p= 0.92

The packet contains 160 seeds.

i.e. n= 160

Then , $\mu_p=0.92\\ \sigma_p=\sqrt{\dfrac{0.92(1-0.92)}{160}}\approx0.0215$

Hence, the sampling distribution model for p is:

$N(\mu_p,\sigma_p) = N(0.92, 0.0215)$

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4 years ago

I'm not sure about 38 - 53 please help! :)

GrogVix [38]

38. 6,800g 39. 19,600g
40. 27,910g 41. 32,840g
42. 610g 43. 970g
44. 3,712g 45. 8,937g
46. 37g 47. 69g
48. 1,510g 49. 4,700g
50. 150g 51. 51g
52. 15,200g 53. 460g

there, put these in:) hope you do well:)

please give brainliest? I did a lot of hard work for this ok?

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3 years ago

The evening bus arrives at a random time between 5:45 and 6:45 pm. You leave work at a random time between 5:00 and 6:15 pm. Dev

Ede4ka [16]

Pretty sure the answer is B Hope this helps! :D

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3 years ago

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