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taurus [48]
2 years ago
7

Evaluate the expression for the given value of the variable.

Mathematics
2 answers:
blsea [12.9K]2 years ago
5 0
Poiuytrewqasdfghklmn
AVprozaik [17]2 years ago
4 0
5 x (65 - 33) / 8
5 x 32 / 8
160 / 8
20

Answer:
20
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C=2πr r radius it would be right
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On a certain​ exam, Tony corrected 20 papers and found the mean for his group to be 70. Alice corrected the remaining 10 papers
son4ous [18]

Answer:

The mean of the combined group is 76.67 ≈ 77

Step-by-step explanation:

  1. The sum of the grades in Tom's group is 20×70 = 1400
  2. The sum of grades in Alice's group is 10×90=900
  3. The sum of gradees in the combined group is =1400+900=2300
  4. Then the mean grade of the combined group is \frac{2300}{30}=76.67

where

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4 0
2 years ago
The table below shows some values of f(x) and g(x) for different values of x: x f(x) = 9x + 7 g(x) = 5x −2 −11 −1 −2 0 1 1 5 2 C
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The Correct Should Be 
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5 0
3 years ago
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What type of variable is the number of robberies reported in your city? Continuous attribute quantitative qualitative?
erastova [34]

solution:

Attribute is not type of variable, instead, attributes are the categories of a categorical variable. For example: if variable is gender, attributes are male , female.

The number of robberies is not continuous because it connot take all values in a continuous interaval.

The number of robberies is quantitative because the value is numeric (discrete)

It is not qualitative because it is not nominal.  


4 0
3 years ago
Which equation results from taking the square root of both sides of (x + 9)^2= 25?
MrRa [10]

Answer:

x=-4,-15

Step-by-step explanation:

(x+9)^{2}=25 \\(x+9)=\pm5\\x=-9\pm5\\x=-4, -15

6 0
3 years ago
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