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OverLord2011 [107]
3 years ago
15

EASY WORK HELP !! Look at the photo

Mathematics
2 answers:
Furkat [3]3 years ago
7 0
18 for the first the second is 50 and 60
cupoosta [38]3 years ago
3 0

Answer:

50 yards

Step-by-step explanation:

\frac{40}{16}  =  \frac{x}{20}  \\ 800 = 16x \\ x = \frac{800}{16}  = 50

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I'm not sure how to make a formula for these type of things? i don't understand what's going on.​
charle [14.2K]
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2 years ago
A software developer wants to know how many new computer games people buy each year. Assume a previous study found the standard
Marrrta [24]

Answer:

The minimum sample size required to ensure that the estimate has an error of at most 0.14 at the 95% level of confidence is n=567.

Step-by-step explanation:

We have to calculate the minimum sample size n needed to have a margin of error below 0.14.

The critical value of z for a 95% confidence interval is z=1.96.

To do that, we use the margin of error formula in function of n:

MOE=\dfrac{z\cdot \sigma}{\sqrt{n}}\\\\\\n=\left(\dfrac{z\cdot \sigma}{MOE}\right)^2=\left(\dfrac{1.96\cdot 1.7}{0.14}\right)^2=(23.8)^2=566.42\approx 567

The minimum sample size to have this margin of error is n = 567.

3 0
2 years ago
How are you feeling now and how do you know it?
slava [35]

i feel tired but im okay

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something that makes you think you can try or do and wont hesitate for

right possibly what makes you happy and wrong which makes others hurt or just something that doesn't feel right

mostly everything

you are genuinely happy with you're life

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5 0
2 years ago
A real estate agent earns a 2% commission on each home that he sells. What is his commission if he sells a home worth $1,000,000
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=$20,000
5 0
3 years ago
What is the solution for the system of equations?
Lena [83]

Answer:

1, 3

Step-by-step explanation:

// Solve equation [2] for the variable  y  

  [2]    y = x - 2

// Plug this in for variable  y  in equation [1]

[1]    (x -2) + x = 4

  [1]    2x = 6

// Solve equation [1] for the variable  x  

[1]    2x = 6  

[1]    x = 3  

// By now we know this much :

y = x-2

x = 3

// Use the  x  value to solve for  y  

 y = (3)-2 = 1

5 0
2 years ago
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