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3 years ago

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Helene, a hiker, starts at an elevation of 27 feet above sea level and descends 32 feet during her hike to base camp. Which desc

ribes the elevation of base camp? 5 feet above sea level 5 feet below sea level 59 feet above sea level 59 feet below sea level

1 answer:

Helen [10]3 years ago

6 0

Here is a real answer
I think -5 my apologies if I’m wrong :)

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Ou are trying to estimate the average amount a family spends on food during a year. In the past, the standard deviation of the a

MA_775_DIABLO [31]

Answer:

The answer is "2653".

Step-by-step explanation:

$Sample \ Size = 99\% \ Cl\\\\ E =60 \\\\\sigma= 1200\\\\$

Minimum sample size for Cl level $= 99\%$ and Desired Margin of Error, $E = 60$ is:

$\to P(|\bar{x}-\mu| < E) \geq 1-\alpha \\\\\to P(\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}}$

$Margin \ Error = \frac{\text{length of the CI}}{2}\\\\\sigma=1200\\\\\alpha=1 - Confidence =1-0.99=0.01\\\\Z_{\frac{\alpha}{2}}=z_{0.005}=2.58\\\\n\geq (\frac{z_{0.005} \times \sigma }{E})^2 \\\\= (\frac{2.58 \times 1200 }{60})^2\\\\=2662.560\\$

The minimum n has to be integer, we take the ceiling Of above number and get n = 2663

The exact z-value.

$n \geq (\frac{2.5758293035489 \times 1200}{60})^2 \\\\= 2653.95864$

using critical value of 2,575, which gives 2652.25

$\to n =2653$

5 0

2 years ago

How long would it would take to travel 198 km at the rate of 36 km/h ?

djyliett [7]

Time = Distance ÷ Speed

= 198 km ÷ 36 km/h

= 5.5 h

3 0

3 years ago

Read 2 more answers

I need help finding missing angle

LiRa [457]

Answer:

The picture

Step-by-step explanation:

Use the supplementary theorem and corresponding theorem. :)

4 0

3 years ago

What’s the slope of the line graphed below?

AveGali [126]

Answer:

1/2

Step-by-step explanation:

Pick two points

(0,1) and (2,2)

The slope is

m = (y2-y1)/ (x2-x1)

= (2-1)/(2-0)

= 1/2

4 0

3 years ago

Jamie has 1/10 yard of blue felt and 5/6 yard yard of green felt.

kondor19780726 [428]

Answer:

Jamie has 11/15 yards of Green Felt more than Blue Felt

Step-by-step explanation:

Green felt- Blue felt

= 5/6- 1/10

= 25/30- 3/30 ( taking LCM)

= 25 - 3/30

=22/30

=11/15 yards

LCM= 2*3*5= 30

Factors of 6= 2*3

Factors of 10= 2*5

7 0

3 years ago