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Liono4ka [1.6K]
3 years ago
11

What is a possible factorization of a polynomial with 3, –2, and i as zeros?

Mathematics
1 answer:
storchak [24]3 years ago
8 0
It should be b but i don’t have paper with me so i’m not sure
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What is the solution to x 4 – 12x 2 + 10 > 0?
Umnica [9.8K]

Answer: The picture contains the answer and the steps

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2 years ago
There are 36 carpenters in a crew.
dolphi86 [110]

Answer:

<em>75%</em>

Step-by-step explanation:

27 ÷ 36 = 0.75

0.75 → 75%

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Hope this helped! :)

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3 years ago
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In an experiment, some diseased mice were randomly divided into two groups. One group was given an experimental drug, and one wa
damaskus [11]

Answer:

D)Yes, because the difference in the means in the actual experiment was more than two standard deviations from 0.

Step-by-step explanation:

We will test the hypothesis on the difference between means.

We have a sample 1 with mean M1=18.2 (drug group) and a sample 2 with mean M2=15.9 (no-drug group).

Then, the difference between means is:

M_d=M_1-M_2=18.2-15.9=2.3

If the standard deviation of the differences of the sample means of the two groups was 1.1 days, the t-statistic can be calculated as:

t=\dfrac{M_d-(\mu_1-\mu_2)}{s_{M_d}}=\dfrac{2.3-(0)}{1.1}=2.09

The critical value for a two tailed test with confidence of 95% (level of significance of 0.05) is t=z=1.96, assuming a large sample.

This is approximately 2 standards deviation (z=2).

The test statistict=2.09 is bigger than the critical value and lies in the rejection region, so the effect is significant. The null hypothesis would be rejected: the difference between means is significant.

4 0
3 years ago
Can someone help me
Roman55 [17]

Answer: D) Reflection across the y-axis; 270^{\circ} counterclockwise rotation about the origin

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2 years ago
Sin230° = _____<br><br> -sin50°<br> sin50°<br> sin130°
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Sin230=sin(180+50)=sin180cos50+cos180sin50=-sin50 answer 1
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