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3 years ago

Answer to the best of your ability

Mathematics

1 answer:

Anastasy [175]3 years ago

7 0

It takes seven minutes

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An entrepreneur is considering the purchase of a coin-operated laundry. The current owner claims that over the past 5 years, the

Bond [772]

Answer:

a. Z-test of a population mean.

Step-by-step explanation:

The current owner claims that over the past 5 years, the average daily revenue was $675 with a standard deviation of $75.

This means that we have a large sample, which means that we can consider this to be the standard deviation for the population, which eliminates the t-test, leaving options a and c.

Population mean or proportion?

Mean, as a proportion is a value between 0 and 1, while average revenue may have lots of possible values. So the answer is given by option A.

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3 years ago

Evaluate the expression.<br> 8 (( 4) 3)?<br> PLEASE HELP ASAP

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3 years ago

3. Solve the following word problems:

klasskru [66]

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3 years ago

Can someone please help?

marta [7]

Answer:

3. definiton of angle bisector

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3 years ago

Which system of equations is equivalent to the following system? 3x + 5y = 29 x + 4y = 16 3x + 5y = 29 −x − 4y = 16 3x + 5y = 29

sp2606 [1]

Answer:

Option 3x+5y=29 and -3x-12y=-48 is the system of equations equivalent to the given system of equations 3x+5y=29 and x+4y=16

Step-by-step explanation:

Given system of equations is 3x+5y=29 and x+4y=16

To find the equivalent system of equations to the given system of equations :

Option 3x+5y=29 and -3x-12y=-48 is the system of equations represents the given system of equations.

Because we can write the given equations as below

3x+5y=29 and x+4y=16

x+4y=16 rewritting as below

When multiply the above equation into (-3) we get

$(-3)\times (x+4y)=16\times (-3)$

$-3x-4y=-48$ as same as the equation x+4y=16 so we can say that they are equivalent

Therefore Option 3x+5y=29 and -3x-12y=-48 is the system of equations represents the given system of equations

Therefore 3x+5y=29 and -3x-12y=-48 is the system of equations equivalent to the given system of equations 3x+5y=29 and x+4y=16

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3 years ago