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Allisa [31]
3 years ago
14

in a certain town there was 468 robberies last year.this year the number of robberies has gone down 30 percent.how many robberie

s were there this year,to the nearest whole number
Mathematics
1 answer:
Alex3 years ago
7 0

Answer:

30

Step-by-step explanation: 30% of 468 is 30

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sweet [91]
A discontinuity is a point that cannot exist because the x-coordinate would cause a problem in the equation. If you have a polynomial in the denominator, you must find which values of x would cause the polynomial in the denominator to evaluate to zero. Since division by zero is undefined, that would cause a discontinuity.

Let's look at your function.

f(x) = \dfrac{x^2 - 16}{6x - 24}

x^2 - 16  is in the numerator. It is defined for every value of x. There is no problem there.

6x - 24  is in the denominator. This is a function defined for every value of x, but since it is in the denominator, we must exclude the x-value that would cause this polynomial to evaluate to zero.

We set it equal to zero and solve the equation for x.

6x - 24 = 0

6x = 24

x = 4

For x = 0, the denominator has a value of zero, so at this point there is a discontinuity in function f(x).

The answer is:

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6 0
3 years ago
Suppose that the hourly wages of fast food workers are normally distributed with an unknown mean and standard deviation. The wag
Nutka1998 [239]

Answer: 1.303639

Step-by-step explanation:

The t-score for a level of confidence (1-\alpha) is given by :_

t_{(df,\alpha/2)}, where df is the degree of freedom and \alpha is the significance level.

Given : Level of significance : 1-\alpha:0.80

Then , significance level : \alpha: 1-0.80=0.20

Sample size : n=40

Then , the degree of freedom for t-distribution: df=n-1=40-1=39

Using the normal t-distribution table, we have

t_{(df,\alpha/2)}=t_{39,0.10}=1.303639

Thus, the t-score should be used to find the 80% confidence interval for the population mean =1.303639

8 0
3 years ago
Which are whole numbers ? 0,4,-2,2/3,-1.8,16,3.2,-5/4
Rasek [7]

Answer:

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Step-by-step explanation:

i hope that helps

7 0
3 years ago
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It would be 1000 x 6 
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4 years ago
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9(x + y) = 9x + 9y what algebraic property is that
Ann [662]
The distributive property
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3 years ago
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