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kogti [31]
3 years ago
11

A designer is adding a pendant to a jewelry collection. The shape of the pendent can be defined by the equation

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
6 0

Answer:

A

Step-by-step explanation:

1.25 on edge

oksian1 [2.3K]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Edge 2021

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A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the we
zepelin [54]
<h2>Answer with explanation:</h2>

Given : A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the weight control measurement is (in grams) are :

X= 155.1, 154.8, 155.5, 155.3, and 154.6.

here, n=5

The average weight :\overline{x}=\dfrac{\sum^{i=5}_{i=1}x_i}{n}

=\dfrac{155.1+154.8+155.5+155.3+154.6}{5}\\\\=\dfrac{775.3}{5}=155.06

∴ Average weight (\overline{x})=155.06 grams

Uncertainty = Standard deviation: \sigma=\sqrt{\dfrac{\sum^{i=5}_{i=1}(x_i-\overline{x})^2}{n}}

=\sqrt{\dfrac{(0.04)^2+(-0.26)^2+(0.44)^2+(0.24)^2+(-0.46)^2}{5}}

=\sqrt{\dfrac{0.532}{5}}=\sqrt{0.1064}=0.326190128606\approx0.33

i.e. Its uncertainty : \sigma=0.33

The fractional uncertainty = \dfrac{\sigma}{\overline{x}}

=\dfrac{0.33}{155.06}=0.00212820843544\approx0.002

7 0
4 years ago
HELP PLEASE ASAP!!!!!!!!!!!!!!
Nesterboy [21]
A. Since the area of a triangle is equal to A = 0.5bh, we just plug in numbers given to us:
A = \frac{1}{2}bh= \frac{1}{2}(2x+7)(4x+6)= \frac{1}{2}(8x^2+40x+42)=4x^2+20x+21

So, that's your answer.

B. The answer is a 2nd-degree trinomial because it has three terms and it's highest exponent is 2.

C. Polynomials are closed under multiplication because if you multiply two polynomials, you get another polynomial (except if you multiply by the inverse which is excluded anyways).
7 0
3 years ago
−6x + 5y = 16x + 4y = −10
sashaice [31]
<h2>What do u want us to help u with?</h2><h2>Im willing to help u!!</h2>
3 0
3 years ago
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Who wants my ip its free of charge
Vikentia [17]

Answer:

hope it's help you ok have a good day

5 0
3 years ago
A rancher’s herd of 250 sheep grazes over a 40-acre pasture. He would like to find out how many sheep are grazing on each acre o
DerKrebs [107]
Given:250 sheep in a 40-acre pasture.Number of sheep grazing in each acre.
250/40 = 6.25 or 6 sheep per acre
n = 6sample proportion: signified by ρSample 1: 4 → 4/6 = 0.67Sample 2: 1 → 1/6 = 0.17Sample 3: 9 → 9/6 = 1.50
multiply the sample proportion by 1-ρSample 1: 0.67(1-0.67) = 0.67(0.33) = 0.2211Sample 2: 0.17(1-0.17) = 0.17(0.83) = 0.1411Sample 3: 1.50(1-1.5) = 1.5(-0.5) = -0.75
divide the result by n. n = 6Sample 1: 0.2211/6 = 0.03685Sample 2: 0.1411/6 = 0.02352Sample 3: -0.75/6 = -0.125
square root of the quotient to get the standard error.Sample 1: √0.03685 = 0.1919Sample 2: √0.02352 = 0.1534Sample 3: √-0.125 = invalid
z value 95% confidence 1.96.
Sample 1: 1.96 * 0.1919 = 0.3761 or 37.61% margin of errorSample 2: 1.96 * 0.1534 = 0.3007 or 30.07% margin of error
3 0
3 years ago
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