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IRINA_888 [86]
3 years ago
11

Alot of poins pleas help​

Mathematics
2 answers:
emmainna [20.7K]3 years ago
8 0

Answer:

48 yd

Step-by-step explanation:

19+19+5+5

photoshop1234 [79]3 years ago
3 0

Answer:

perimeter is length + length + width + width so 19+19+5+5= 48

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The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between and minut
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Answer:

Incomplete question, but the concepts of the uniform distribution needed to solve this question are given here.

Step-by-step explanation:

Uniform probability distribution:

An uniform distribution has two bounds, a and b.

The probability of finding a value of at lower than x is:

P(X < x) = \frac{x - a}{b - a}

The probability of finding a value between c and d is:

P(c \leq X \leq d) = \frac{d - c}{b - a}

The probability of finding a value above x is:

P(X > x) = \frac{b - x}{b - a}

The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between a and b minutes.

From here, we get the values of a(smallest value) and b(highest value).

Question of the probabilities:

In the two probability questions, you will get the value of x, and will apply one of the three formulas given above, depending on the question, to find the desired probability.

3 0
3 years ago
A house on the market was valued for 409,000
Nana76 [90]
I’d need to know the question to answer this.
5 0
3 years ago
Jerry was given some birthday money. He puts the money in an account. Every month after that, he deposits the same amount of mon
wel
The answer is D.


Brainliest pls!
4 0
4 years ago
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A polymer is manufactured in a batch chemical process. Viscosity measurements show that it is approximately normally distributed
PilotLPTM [1.2K]

Answer: (751.05, 766.95)

Step-by-step explanation:

We know that the confidence interval for population mean is given by :-

\overline{x}\pm z*\dfrac{\sigma}{\sqrt{n}},

where \sigma =population standard deviation.

\overline{x}= sample mean

n= sample size

z* = Two-tailed critical z-value.

Given :  \sigma= 20

n= 42

\overline{x}=759

We know that from z-table , the two-tailed critical value for 99% confidence interval : z* =2.576

Now, the 99% confidence interval around the true population mean viscosity :-

759\pm (2.5760)\dfrac{20}{\sqrt{42}}\\\\=759\pm (2.5760)(3.086067)\\\\=759\pm7.9497=(759-7.9497,\ 759+7.9497)\]\\=(751.0503,\ 766.9497)\approx(751.05,\ 766.95)

∴ A 99% confidence interval around the true population mean viscosity : (751.05, 766.95)

3 0
4 years ago
5x+4)=10x+6<br> step by step explanation<br> solve and what solution is
marshall27 [118]

Answer:

subtract 10x from both sides

5x + 4 = 10x + 6

-10x        -10x

subtract 4 from both sides

-5x + 4 = 6

<u>        -4    -4</u>

-5x  =  2

divide -5 from both sides

x = -2/5

Step-by-step explanation:

3 0
3 years ago
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