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allochka39001 [22]
3 years ago
15

Find the value of x. 2(3x - 5) = 8

Mathematics
1 answer:
aliina [53]3 years ago
4 0

Answer:

3

Step-by-step explanation:

2(3x - 5) =8

6x - 10 =8

6x =8 +10

6x =18

x=18 :6

x=3

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Whatis 4b to the -6 power in its simplest form
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4b^-6

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4/b^6
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4 years ago
Read 2 more answers
A random sample of 200 voters in a town is selected, and 114 are found to support an annexa- tion suit. Find the 96% confidence
EastWind [94]

Answer:

a) 96% CI: 0.51\leq\pi\leq 0.63

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.

Step-by-step explanation:

The proportion of the sample is

p=\frac{114}{200}=0.57

The standard deviation of the sample proportion is

\sigma=\sqrt{\frac{p(1-p)}{n} } =\sqrt{\frac{0.57(1-0.57)}{200} } =\sqrt{\frac{0.2451}{200} } =0.035

For a 96% CI, the z-value is z=1.751.

Then, the 96% CI can be written as:

p-z\cdot \sigma\leq\pi\leq p+z\cdot \sigma\\\\0.57-1.751*0.035\leq\pi\leq 0.57+1.751*0.035\\\\0.57-0.06\leq\pi\leq 0.57+0.06\\\\0.51\leq\pi\leq 0.63

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.

6 0
4 years ago
2 &amp; 1/6 x 2 &amp; 5/6 <br><br> Plz solve I keep getting it wrong
Gre4nikov [31]

Answer:

6\frac{5}{36}

Step-by-step explanation:

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2\frac{1}{6} × 2\frac{5}{6} = \frac{13}{6} × \frac{17}{6}

Directly multiply. (numerators with numerators and denominators with denominators)

\frac{13}{6} × \frac{17}{6} = \frac{221}{36}

Simplify by turning improper fractions back into mixed numbers.

\frac{221}{36} = 6\frac{5}{36}

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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6 0
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A company will make a cereal box with whole number dimensions and a volume of 100 cubic centimeters. if cardboard costs $0.05 pe
Evgen [1.6K]

Answer:

The best dimension to use to have the least cost to make 100 boxes is 5 x 5 x 4. It only costs $6.50 to make 100 boxes.

Step-by-step explanation:

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