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AURORKA [14]
3 years ago
11

The sum of two numbers is 50

Mathematics
2 answers:
salantis [7]3 years ago
7 0

Answer:

2X=50

Step-by-step explanation:

X+X=50 I hope that help

Gekata [30.6K]3 years ago
4 0

Answer:25+25=50

Step-by-step explanation:

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A survey of 80 randomly selected companies asked them to report the annual income of their presidents. Assuming that incomes are
Artyom0805 [142]

Answer:

The 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

Step-by-step explanation:

The information provided is:

n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%

The critical value of <em>z</em> for 90% confidence level is, 1.645.

Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)

Thus, the 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

This interval implies that there is 90% probability that the true mean annual income of all company presidents is within this interval.

4 0
2 years ago
Plz help. I'll give brainliest to whoever helps me answer this
Rzqust [24]

Answer: $34.50

Step-by-step explanation

If you multiply .75=3/4 x 10 it will will be 7.50 so 10x 3.45= 34.50 or 7.50 x 3.45= 25.875

25.875/.75 = $34.50

3 0
2 years ago
Please answer this question now
topjm [15]

Answer:

320 square inches

Step-by-step explanation:

4 * 1/2(8)(16) + 8*8 = 320

3 0
3 years ago
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The length of the major axis of the ellipse below is 12, and the length of the red line segment is 4
Alexxx [7]

Answer:

11/2

Step-by-step explanation:

The semi-major axis is 1/2 of the major axis, a, so a = 11/2.

6 0
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Sharon spends 24 hours on her tablet each week. How many hours does she
melisa1 [442]
Sharon spends 1248 because there are 52 weeks in a year and 24 * 52 = 1248
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3 years ago
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