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sattari [20]
2 years ago
10

Passes through (4, 2) and (4,-5) in standard form

Mathematics
1 answer:
elena-s [515]2 years ago
7 0

Answer:

x+4=0

Step-by-step explanation:

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Determine 6th term in the geometric sequence whose first term is 3 and whose common ratio is -4.
GREYUIT [131]
a_1=3
a_2=-4a_1
a_3=-4a_2=(-4)^2a_1
\cdots
a_6=-4a_5=\cdots=(-4)^5a_1

\implies a_6=(-4)^5\cdot3=-3072
6 0
3 years ago
Of 585 samples of seafood purchased from various kinds of food stores in different regions of a country and genetically compared
Dafna1 [17]

Answer:

a) The 99% confidence interval is from 14.8% to 23.2%.

b) The confidence interval tells us that the true proportion of mislabeled is within 14.8% and 23.2%, with a 99% confidence. In other words, if we take samples of the same size, 99% of the samples will have a proportion within 0.148 and 0.232.

c) The confidence interval calculation take into account the sample size, so the width (or precision) of the interval depends on the sample size.

The only criticism that could be analyzed is to see if the sample is representative of the population.

Step-by-step explanation:

a) We have to calculate a 99% confidence interval for the proportion.

The sample proportion is p=0.19.

 

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.19*0.81}{585}}\\\\\\ \sigma_p=\sqrt{0.000263}=0.016

The critical z-value for a 99% confidence interval is z=2.576.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=2.576 \cdot 0.02=0.042

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.19-0.042=0.148\\\\UL=p+z \cdot \sigma_p = 0.19+0.042=0.232

The 99% confidence interval for the population proportion is (0.148, 0.232).

5 0
2 years ago
Reduce 20/24 to the simplest form
BabaBlast [244]

Answer:

5/6

Step-by-step explanation:

<h2><u>Plz Mark As Brainlest!</u></h2>
6 0
2 years ago
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PLEASE HELP WITH QUESTION. 18 POINTS THANKS SO MUCH
-BARSIC- [3]

Answer:

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Step-by-step explanation:

8 0
3 years ago
What is 5.46 ÷ 0.25 (show ur work please..?)
KengaRu [80]

Answer:

21.84

Step-by-step explanation:

5.46

/

.25

21.84

4 0
2 years ago
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