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DaniilM [7]
3 years ago
9

the expression x - 0.10 X gives the cost of an item that is discounted 10% write this expression in the other way​

Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

Step-by-step explanation:

Take out a common factor (x)

x ( 1 - 0.10 )                

Now do the subtraction

0.90x

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Step-by-step explanation:

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7 0
3 years ago
A researcher conducts a hypothesis test using a sample of n = 40 from an unknown population. What is the df value for the t stat
aliya0001 [1]

Answer:

Correct option: b 39.

Step-by-step explanation:

A one-sample (or one mean) t-test is applied to test whether the population-parameter is significantly different from some hypothetical value.

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df = n - 1

It is provided that the sample size is, <em>n</em> = 40.

Compute the degrees of freedom as follows:

df = n - 1

   = 40 - 1

   = 39

Thus, the correct option is b.

3 0
3 years ago
A triangle has a base of 9 feet and a height of 12 ft. What is the area of a triangle? A. 42ft^2 B. 54 ft^2 C. 84 ft^2 D. 108 ft
elena55 [62]

Answer:54sqft

Step-by-step explanation:

A=b*h/2

A=9*12/2=54sqft

5 0
3 years ago
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charle [14.2K]

Answer:

Step-by-step explanation:

8 0
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Divide the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of
nika2105 [10]
We have the following expression:
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 Division OK.
 Answer:
 
The result of the division is:
 
9x3 - 6x2 + 3x
4 0
4 years ago
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