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Sedaia [141]
2 years ago
6

The Original Price of a 4ft×4ft Boards is $12.78, but when you buy 10 or more you pay $10.80. You only need 8, 4ft × 4ft Boards

Which would be the better deal?​
Mathematics
1 answer:
Fittoniya [83]2 years ago
6 0
:) I don’t know the answer .
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X+y+(y-2)=60,1/2(x)(y-2)=120 what is x and y​
Rudiy27
I think is this hopefully this helps

5 0
3 years ago
Read 2 more answers
Hurry Need Help I Will Give Brainliest!!
Drupady [299]

Answer:

Measure of angle R:                      Measure of angle S:

42 degrees                                     <em><u>90 - 42 = 48</u></em>

30 degrees                                     <em><u>90 - 60 = 30</u></em>

84 degrees                                  <em>   </em><em><u>90 - 84 = 6</u></em>

<em><u>Complimentary angles are angles whose sum is 90 degrees</u></em>

7 0
2 years ago
Read 2 more answers
Learning Thoery In a learning theory project, the proportion P of correct responses after n trials can be modeled by p = 0.83/(1
elena-s [515]

Answer:

a)P(n=3) = \frac{0.83}{1+e^{-0.2(3)}}= \frac{0.83}{1+ e^{-0.6}} = 0.536

b) P(n=7) = \frac{0.83}{1+e^{-0.2(7)}}= \frac{0.83}{1+ e^{-1.4}} = 0.666

c) 0.75 =\frac{0.83}{1+e^{-0.2n}}

1+ e^{-0.2n} = \frac{0.83}{0.75}= \frac{83}{75}

e^{-0.2n} = \frac{83}{75}-1= \frac{8}{75}

ln e^{-0.2n} = ln (\frac{8}{75})

-0.2 n = ln(\frac{8}{75})

And then if we solve for t we got:

n = \frac{ln(\frac{8}{75})}{-0.2} = 11.19 trials

d) If we find the limit when n tend to infinity for the function we have this:

lim_{n \to \infty} \frac{0.83}{1+e^{-0.2t}} = 0.83

So then the number of correct responses have a limit and is 0.83 as n increases without bound.

Step-by-step explanation:

For this case we have the following expression for the proportion of correct responses after n trials:

P(n) = \frac{0.83}{1+e^{-0.2t}}

Part a

For this case we just need to replace the value of n=3 in order to see what we got:

P(n=3) = \frac{0.83}{1+e^{-0.2(3)}}= \frac{0.83}{1+ e^{-0.6}} = 0.536

So the number of correct reponses  after 3 trials is approximately 0.536.

Part b

For this case we just need to replace the value of n=7 in order to see what we got:

P(n=7) = \frac{0.83}{1+e^{-0.2(7)}}= \frac{0.83}{1+ e^{-1.4}} = 0.666

So the number of correct responses after 7 weeks is approximately 0.666.

Part c

For this case we want to solve the following equation:

0.75 =\frac{0.83}{1+e^{-0.2n}}

And we can rewrite this expression like this:

1+ e^{-0.2n} = \frac{0.83}{0.75}= \frac{83}{75}

e^{-0.2n} = \frac{83}{75}-1= \frac{8}{75}

Now we can apply natural log on both sides and we got:

ln e^{-0.2n} = ln (\frac{8}{75})

-0.2 n = ln(\frac{8}{75})

And then if we solve for t we got:

n = \frac{ln(\frac{8}{75})}{-0.2} = 11.19 trials

And we can see this on the plot attached.

Part d

If we find the limit when n tend to infinity for the function we have this:

lim_{n \to \infty} \frac{0.83}{1+e^{-0.2t}} = 0.83

So then the number of correct responses have a limit and is 0.83 as n increases without bound.

5 0
3 years ago
Scott is playing a game in which he rolls a number cube with faces numbered 1through 6 and spins the spinner shown below one tim
defon

Solution:

The total number of possiblities rolling a number cube with faces numbered 1 to 6 is;

And the total number of possibilities spining the spinner is;

The number of possibility where outcome on the cube is greater than 2 is;

4

And the number on the spinner less than 9 is;

2

Hence, the unique combination is;

4\times2=8

CORRECT OPTION: A

7 0
11 months ago
50 POINTS!
ehidna [41]

Answer:

  • A. the distance between points W and X

Step-by-step explanation:

<u><em>Looking for the distance of 5 units</em></u>

A. the distance between points W and X

  • -3 - (-8) = -3 + 8 = 5
  • Correct

B. the distance between points X and Y

  • 1 - (-3) = 1 + 3 = 4 < 5
  • Incorrect

C. the distance between points X and Z

  • 5 - (-3) = 5 + 3 = 8 > 5
  • Incorrect

D. the distance between points Y and Z

  • 5 - 1 = 4 < 5
  • Incorrect

7 0
2 years ago
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