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Mazyrski [523]
2 years ago
14

6x^3 - 9x^2 = ? 3x(x+1)−5y(x+1) = ?

Mathematics
1 answer:
Irina18 [472]2 years ago
4 0

Step-by-step explanation:

6x^3 - 9x^2=

3x^2(2x-3)

3x(x+1)−5y(x+1)=

3x-5y(x+1)

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A piece of string is 5 5/8 inches long. How much should Lena cut off to make it 3 1/2 inches long?
solong [7]

Answer:

2 1/8 inches

Step-by-step explanation:

First, we make the fractions into improper fractions:

5 5/8 = 45/8

3 1/2 = 7/2

Now we make them to have the same denominator

7/2 = 28/8

Now we substract

45/8 - 28/8 = 17/8

17/8 =  2  1/8 inches

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4 years ago
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A plumber uses 16 inches of tubing to connect each washing machine in a laundry to the water source. He wants to install 18 wash
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3 years ago
I need help with Function Operations
Leni [432]

Answer:

490

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4 0
3 years ago
***WILL GIVE BRAINLIEST***
sergij07 [2.7K]

Answer:

P(a junior or a senior)=1

Step-by-step explanation:

The formula of the probability is given by:

P (AB) = P(A)  

Where P(A) is the probability of occurring an event A, n(A) is the number of favorable outcomes and N is the total number of outcomes.

In this case, N is the total number of the students of statistics class.

N=18+10=28

The probability of the union of two mutually exclusive events is given by:

Therefore:

P(a junior or a senior) =P(a junior)+P(a senior)

Because a student is a junior or a senior, not both.

n(a junior)=18

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P(a senior) = 10/28

P(a junior or a senior) = 18/28 + 10/28

Solving the sum of the fractions:

P(a junior or a senior) = 28/28 = 1

3 0
3 years ago
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