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lukranit [14]
3 years ago
11

Find the length of a rectangular lot with a perimeter of 72m if the length is 6m more than The Width

Mathematics
2 answers:
Murljashka [212]3 years ago
4 0
The width is 15 and length is 21m
shutvik [7]3 years ago
3 0
First write down what we know...
l = w + 6
perimeter = 2l + 2w = 72
2l + 2w = 72
l + w = 36

Substitute l with (w + 6)...
(w + 6) + w = 36
2w + 6 = 36
2w = 30
w = 15

Width is 15m, so that means the Length is 21m.
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Please solve this question
ANTONII [103]

The probability that a randomly selected x-value from the distribution will be in the interval:

  • P(35 < x < 45) = 0.6827 and,
  • P(30 < x < 40) = 0.47725

<h3>What is the probability of a normal distribution?</h3>

The probability of a normal distribution can be determined from the symmetrical curve between 1 to 100%.

From the information given:

  • Mean = 40
  • Standard deviation = 5

To determine the probability that a randomly selected x-value is in the given interval:

  • P(35<x<45)
  • P(30<x<40)

P(35 < x < 45) = P(\dfrac{35-40}{5} < Z < \dfrac{45-40}{5})

P(35 < x < 45) = P(\dfrac{-5}{5} < Z < \dfrac{5}{5})

P(35 < x < 45) = P(-1 < Z < 1)

\mathbf{P(35 < x < 45) = P[Z\le 1] -P[Z\le -1]}

Using normal distribution table:

P(35 < x < 45) = 0.8414 - 0.1587

P(35 < x < 45) = 0.6827

P(30 < x < 40) = P(\dfrac{30-40}{5} < Z < \dfrac{40-40}{5})

P(30 < x < 40) = P(\dfrac{-10}{5} < Z < \dfrac{0}{5})

P(30 < x < 40) = P(-2 < Z < 0)

\mathbf{P(30 < x < 40) = P[Z\le0]-P[Z\le -2]}

Using normal distribution table:

P(30 < x < 40) = 0.5 - 0.02275

P(30 < x < 40) = 0.47725

Learn more about the probability of a normal distribution here:

brainly.com/question/4079902

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3 0
2 years ago
What is 8+4??? and you favorite tv show???
Nikitich [7]

Answer:

12

Step-by-step explanation:

right now the good doctor and criminal minds

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3 years ago
How many solutions does this equation have? -4(5-3x)=12x+20​
UNO [17]

Answer:  The number of solutions to the given equation is zero.

Step-by-step explanation:  We are given to find the number of solutions to the following equation :

-4(5-3x)=12x+20~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To find the number of solutions, we must solve the given equation.

The solution of equation (i) is as follows :

-4(5-3x)=12x+20\\\\\Rightarrow 5-3x=\dfrac{12x+20}{-4}\\\\\Rightarrow 5-3x=-3x-5\\\\\Rightarrow -3x+3x=-5-5\\\\\Rightarrow 0=-10, which can never be possible.

So, the given equation has no solution.

Thus, the number of solutions to the given equation is zero.

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4 years ago
As of a certain date, there had been a total of 14,649 performances of two shows on Broadway, with 2389 more performances of Sho
Naddik [55]

Subtract the difference:

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Divide that by 2

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That is the number of shows for B.

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2389 + 6130 = 8,519

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