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harina [27]
3 years ago
14

Consider the following equations

Mathematics
1 answer:
Liula [17]3 years ago
8 0

Answer:

2) (-2,1)

Step-by-step explanation:

Solve using the substitution method -x-(x+3)=1 using this equation you would find x which is -2

Substitute -2 into the given equation, y=-2+3   y=1

Therefore, The answer is (-2,1)

It would be greatly appreciated if you gave the the brainlest

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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
Calculate 19 over 6 and write the answer as decimal
alina1380 [7]

Answer:

Below.

Step-by-step explanation:

19/6=3.166666667.

7 0
2 years ago
Read 2 more answers
deandre saves rare coins. he starts his collection with 14 coins and plans to save 3 coins each month. write an equation to repr
bekas [8.4K]

Answer:

equation: y = 3x + 14

number of coins after 30 months: 104 coins

Hope this helps :)

5 0
3 years ago
Ansley drove 8.7 miles to the park then she drove 12.43 miles to the museum how many miles did Ansley drive in all
Karo-lina-s [1.5K]
Answer: 21.13 miles

Explanation: The question asks “drive in all”. They gave you the miles driven, which is 8.7 and 12.43. If you add them together, you will get 21.13 miles.
5 0
2 years ago
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Write a linear equation in slope-intercept form. m=-3 and contains (0,2)
katen-ka-za [31]
<h3>Answer:</h3>

y=-3x-2

<h3>Solution:</h3>
  • We have a point that the line passes through and its slope.
  • Since the point has an x-coordinate of 0, this point is the line's y-intercept (2)
  • Slope-intercept form: y=mx+b
  • m -> slope
  • b -> y-intercept
  • Plug in the values:
  • y=-3x-2

Hope it helps.

Do comment if you have any query.

6 0
2 years ago
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