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2 years ago

What is the equation of the line that passes through the point (-5, -3) and has a slope of -1?

Mathematics

1 answer:

Grace [21]2 years ago

4 0

Answer:/2

Step-by-step explanation:237

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What is 10 m plus n 2 / 4 when m =5 + n =4

Elodia [21]

Answer:

Step-by-step explanation:

10(5)+4 2/4

10*5+4*4+2

50+18

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2 years ago

Alex left his home to go to the museum. He then went to the restaurant before returning home. The coordinate plane shows the loc

AleksAgata [21]

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2 years ago

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Ivenika [448]

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2 years ago

Find the sum of (3 – 4i) and (6 + 7i)

Ivanshal [37]

Answer:-(3-4i) and -(6+7i)

Step-by-step explanation: To find the complex conjugate, negate the term with i.

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2 years ago

The marketing director of a large department store wants to estimate the average number of customers who enter the store every f

Dahasolnce [82]

Answer:

$36.5674\leq x'\leq61.4326$

Step-by-step explanation:

If we assume that the number of arrivals is normally distributed and we don't know the population standard deviation, we can calculated a 95% confidence interval to estimate the mean value as:

$x-t_{\alpha /2}\frac{s}{\sqrt{n} } \leq x'\leq x-t_{\alpha /2}\frac{s}{\sqrt{n} }$

where x' is the population mean value, x is the sample mean value, s is the sample standard deviation, n is the size of the sample, $\alpha$ is equal to 0.05 (it is calculated as: 1 - 0.95) and $t_{\alpha /2}$ is the t value with n-1 degrees of freedom that let a probability of $\alpha/2$ on the right tail.

So, replacing the mean of the sample by 49, the standard deviation of the sample by 17.38, n by 10 and $t_{\alpha /2}$ by 2.2621 we get:

$49-2.2621\frac{17.38}{\sqrt{10} } \leq x'\leq 49+2.2621\frac{17.38}{\sqrt{10} }\\49-12.4326\leq x'\leq 49+12.4326\\36.5674\leq x'\leq61.4326$

Finally, the interval values that she get is:

$36.5674\leq x'\leq61.4326$

8 0

2 years ago