Look at the figure below:

Mathematics

1 answer:

labwork [276]3 years ago

7 0

The answer to this question is 10 units

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Laptop has a listed price of $883.99 before tax if the sales rate of 7.5% find the total cost of the laptop with sales tax inclu

Westkost [7]

Answer:

883.99(0.075)=66.29925+883.99=950.29

Step-by-step explanation:

The laptop will cost $950.29.

5 0

3 years ago

Read 2 more answers

How would you do (k-3)/4 = 10 ?

givi [52]

Are you asking how to solve for k? In that case, multiply both sides by 4. Then add 3 to both sides:

(k-3) = 40
k = 43

3 0

3 years ago

A. Student GPAs: Bob’s z-score z = + 1.71 μ = 2.98 σ = 0.36 b. Weekly work hours: Sarah’s z-score z = + 1.18 μ = 21.6 σ = 7.1 c.

hjlf

Answer:

a) $x = \mu +z*\sigma$

And replacing we got:

$x= 2.98 + 1.71*0.36 = 3.5956$

b) $x = \mu +z*\sigma$

And replacing we got:

$x= 21.6 + 1.18*7.1 = 29.978$

c) $x = \mu -z*\sigma$

And replacing we got:

$x= 150 - 1.35*40= 96$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Part a

Let X the random variable of interest for this case. We define the z score with the following formula:

$z=\frac{x-\mu}{\sigma}$