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malfutka [58]
3 years ago
10

which expression is equivalent to the product 2x(x+2) (x-3)? A. 12x to the third - 12x ) B. 2x to the third - 4x squared - 6) C.

2x to the third - 2x squared -10x ) D. 2x to the third - 2x squared -12x ​

Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0

Answer:

Option 4 is the correct option.

Step-by-step explanation:

We need to solve the expression 2x(x+2)(x-3)

Multiplying the terms with each other we get,

2x(x+2)(x-3)\\=2x(x^2 -3x+2x-6)\\=2x(x^2 -x -6)\\=2x^3 -2x^2 -12x

Option 4 is the correct option.

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After a bride has interviewed 7 DJs to play at her wedding, her fiance tells her she needs to narrow it down to 4 DJs. In how ma
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840

Step-by-step explanation:

Given

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To\ pick = 4

Required

Determine the number of rankings

The term "ranking" as used in this question implies permutation and the required is calculated using:

^nP_r = \frac{n!}{(n-r)!}

Where

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So:

^nP_r = \frac{n!}{(n-r)!}

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^7P_4 = \frac{7!}{3!}

^7P_4 = \frac{7 * 6 * 5 * 4 * 3!}{3!}

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3 years ago
If you drive your car for 4.5 hours at an average speed at 70 miles per hour how far did you go ?
vodka [1.7K]
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3 years ago
5.<br>Find the sum of all two - digit natural numbers which are divisible by 3.​
kykrilka [37]

Answer:

1665

Step-by-step explanation:

This is AP, where:

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  • Last term is: 99= 3*33
  • Common difference is: 3
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  • S=1/2*30(12+99)= 1665

The sum of all two - digit natural numbers which are divisible by 3 is 1665

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3 years ago
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