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e-lub [12.9K]
2 years ago
11

Ill mark brainlist plss help

Mathematics
1 answer:
bezimeni [28]2 years ago
5 0

Answer: 6 pails

Step-by-step explanation:

plz mark me brainliest

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In a metal fabrication​ process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n
Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, \bar{x} = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314  

14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)  

is the required confidence interval for the true mean length of rods.

3 0
3 years ago
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What is the value of x?<br> Enter your answer in the box.<br><br> x =
larisa [96]
24^2 + 7^2 = 25^2 x = 25
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3 years ago
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3. Solve the equation c2 = 80.
guapka [62]
C=40 bahshshahajehsh
4 0
3 years ago
What are the approximate solutions of 4x^2 + 3 = -12x to the nearest hundredth
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Approximate solutions are

X subset 2 is approximately equal to -2.72

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4 0
3 years ago
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Will give brainliest
Katen [24]

Answer:

Trapezoid

Step-by-step explanation:

The two sloped opposite sides are congruent. The two uncongruent opposite sides are parallel. There are no right angles. You can do this by finding the distance and slopes of the lines.

Not triangle because has four vertices.

3 0
2 years ago
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