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1 year ago

The table shows the temperature (V) as different altitudes of). This is a linear relationship was the 0.00468 te dele The temper

ature at an altitude of 5,000 feet

Mathematics

1 answer:

polet [3.4K]1 year ago

6 0

$\begin{gathered} \text{the general straight line equation is} \\ y=mx+b \\ \text{where m is the slope and b the y-intecept} \\ b\text{ can be obtained easily when x=0, because} \\ y=m(0)+b\Rightarrow y=b \\ \\ In\text{ this case, we can s}e\text{ that, when x=0} \\ y=69 \\ \text{hence b=69} \end{gathered}$ $maybeyoumustwritethetemperaturesymbol$ $\text{can you s}ee\text{ this message?}$ $\text{may be you must write the temperature symbol "F". because this answer is correct.}$ $\text{its very strange, its the only answer for linear behavior}$

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A sample of 5 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop

Helen [10]

Answer:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

But we need to calculate the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_I}{n}$

And replacing we got:

$\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072$

And for the sample variance we have:

$s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003$

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance $\sigma^2$

$E(s^2) = \sigma^2$

Step-by-step explanation:

For this case we have the following data:

1.04,1.00,1.13,1.08,1.11

And in order to estimate the population variance we can use the sample variance formula:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

But we need to calculate the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_I}{n}$

And replacing we got:

$\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072$

And for the sample variance we have:

$s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003$

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance $\sigma^2$

$E(s^2) = \sigma^2$

3 0

3 years ago

Is 48x + 43 = 47x + 43 a no solution , one solution, or infinitely many solution

laiz [17]

The answer looks like it would be no solution because if you do 48x- 47x= 1x and 43-43=0 and 1x does not equal 0

6 0

3 years ago

Read 2 more answers

Suppose an aerial freestyle skier goes off a ramp with her path represented by the equation y=−0.024(x−25)2+40. If the surface o

Harlamova29_29 [7]

Answer:

Suppose an aerial freestyle skier goes off a ramp with her path represented by the equation y=−0.024(x−25)2+40. If the surface of the mountain is represented by the linear equation y=−0.5x+25, find the distance in feet the skier lands from the beginning

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3 years ago

The height of a volleyball, h, in feet, is given by h = −16t2 + 11t + 5.5, where t is the number of seconds after it has been hi

slavikrds [6]

Answer:

It will travel high enough

Step-by-step explanation:

Find the vertex of the parabola:

x=-b/2a

x=-11/2(-16)

x=-11/-32

x=11/32

Plug x=11/32 into quadratic to get the y-coordinate:

h=-16(11/32)^2+11(11/32)+5.5

h=7.391

Since 7.391>7.3, the volleyball will travel high enough (aka. yes)

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3 years ago

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natita [175]

Answer is C but if its on grad point your answer is 0.5(2)^x

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3 years ago