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Rus_ich [418]
3 years ago
5

What is this answer? 8(x-5)

Mathematics
2 answers:
Snezhnost [94]3 years ago
7 0

Step-by-step explanation:

the answer is...

8x-40

Please follow me!!!

Law Incorporation [45]3 years ago
6 0

Answer:

8x-40

Step-by-step explanation:

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In 2014, 85 percent of households in the United States had a computer. For a randomly selected sample of 200 households in 2014,
DochEvi [55]

Answer:

The mean of C is 170 households

The standard deviation of C, is approximately 5 households

Step-by-step explanation:

The given parameters are;

The percentage of households in the United States that had a computer in 2014 = 85%

The size of the randomly selected sample in 2014, n = 200

The random variable representing the number of households that had a computer = C

Therefore, we have;

The probability of a household having a computer P = 85/100 = 0.85

Let

Therefore;

The mean (expected) number in the sample, μₓ, = E(x) = n × P is given as follows;

μₓ = 200 × 0.85 = 170

The mean of C = μₓ = 170

The variance, σ² = n × P × (1 - P) = 200 × 0.85 × (1 - 0.85) = 25.5

Therefore;

The standard deviation, σ = √(σ²) = √(25.5) ≈ 5.05

The standard deviation of C, σ ≈ 5 households (we round (down) to the nearest whole number)

7 0
3 years ago
Read 2 more answers
Simplify the rational expressions. State any excluded values. X^2-4/2-x
tatiyna

Answer:

-x-2;  x\neq2

Step-by-step explanation:

\frac{x^2-4}{2-x}-->

\frac{(x-2)(x+2)}{(2-x)} -->

-(x+2); x CAN'T equal 2, because the denominator of the original fraction would be 0, which would make the term undefined.

4 0
3 years ago
A transversal intersects two lines which condition would make the two lines parallel
lys-0071 [83]
The slope is that same
3 0
3 years ago
one morning, the temperature was 5 degrees below zero (F). By noon the temperature rose 20 degrees F and then dropped 8 degrees
Vanyuwa [196]

Answer:

7 degrees

Step-by-step explanation:

The temperature starts at -5. It rises 20 degrees so that means it is now 15 degrees. It decreased 8 degrees so now it is 7 degrees.

The main thing you are doing is adding and subtracting

6 0
2 years ago
Arnetta’s monthly gross pay is $4,200. Federal withholding is 16.05% of her pay. Her other deductions total $321.30. What is her
Westkost [7]

Answer:

c

Step-by-step explanation:

8 0
3 years ago
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