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Dvinal [7]
3 years ago
14

This is the easiest question I've asked.Hope you guys can work it out.Correct answer gets brainliest.

Mathematics
2 answers:
Tamiku [17]3 years ago
8 0
Width is 15cm, i got too
Rasek [7]3 years ago
4 0
Width=x
length=3x
perimeter=2*(x+3x)=8x
8x=120
x=120/8=15
therefore width is 15cm
all the best, and thnx for this question
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Determine the point estimate of the population mean for the confidence interval of (15, 32). Enter up to 1 decimal place. Point
netineya [11]

Answer:

The point estimate of the population mean for the confidence interval of (15,32) is 23.5

Step-by-step explanation:

We are given the following information in the question:

Confidence interval for population mean is (15, 32).

We have to find the point estimate for population mean.

Formula:

\mu = \displaystyle\frac{\mu_1+\mu_2}{2} = \frac{15+32}{2} = 23.5

The point estimate of the population mean for the confidence interval of (15, 32) is 23.5

6 0
3 years ago
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emmasim [6.3K]
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3 years ago
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denis23 [38]
The larger number is 82 and the smaller number is 54.
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3 years ago
Could anyone help me out, it’s would mean a lot.
SIZIF [17.4K]

Answer:

x = 19

Step-by-step explanation:

If two lines are perpendicular, they create 4 90° angles. Meaning, in this case, that m<DBC = 90 and m<DBA = 90.

We're given that m<DBE = 2x - 1 and that m<CBE = 5x - 42.

The sum of angles DBE and CBE = m<DBC = 90°

We can add the two angles and set it equal to 90 to find x

2x - 1 + 5x - 42 = 90\\7x - 43 = 90\\7x = 133\\x = \frac{133}{7} =19

6 0
3 years ago
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3 years ago
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