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Nadusha1986 [10]
3 years ago
6

Can you help this this question 40 points

Mathematics
2 answers:
Levart [38]3 years ago
5 0

Answer:

1. Equation 1

2. -2x-3(6x-11)=-7

3. x=2

4. y=1

5. (2,1)

Scilla [17]3 years ago
4 0

Do you need this in a graph form?

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Identify the new fractions with the common denominator. 2/5 + 1/3
xxMikexx [17]

Answer:

11/15

Step-by-step explanation:

2/5 + 1/3

6/15 + 5/15 (which are equivalent fractions of 2/5 and 1/3 respectively)

11/15

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3 years ago
A manufacturer of interocular lenses will qualify a new grinding machine if there is evidence that the percentage of polished le
solniwko [45]

Answer:

Does not exceed 2% in both cases.

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Given that a  manufacturer of interocular lenses will qualify a new grinding machine if there is evidence that the percentage of polished lenses that contain surface defects does not exceed 2%.

Sample proportion = \frac{6}{250} \\=0.024

Create hypothesses as

H_0: p = 0.02\\H_a : p >0.02

(Right tailed test at 5% significance level)

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Std error = 0.0089

test statistic Z = p diff/std error = 0.4518

p value = 0.326

Since p >alpha, we accept nullhypothesis

b) For confidence interval 97% we have

Margin of error = 2.17* std error = 0.0192

Confidence interval

= (0.024-0.0191, 0.024+0.0191)\\= (0.0049, 0.0431)\\

Since 2% = 0.02 lies within this interval we accept null hypothesis.

Does not exceed 2%

Since

7 0
4 years ago
Question on this math question. Can you help?
dmitriy555 [2]

Answer:

5

Step-by-step explanation:

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TRUSTTT

4 0
3 years ago
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(3x - 1)^2 + 12x - 4 = 0
Olenka [21]

Answer:

x

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How do I divide 28 divided by 620
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3 years ago
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