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krek1111 [17]
2 years ago
14

Expand and simplify (x+2)(x+4)(x+6)

Mathematics
1 answer:
Deffense [45]2 years ago
5 0

Answer:

Multiply the first two binomials: (x+2) & (x+4) using the FOIL method (First, Outer, Inner & Last).

(x+2)(x+4) = x^² + 4x + 2x + 8 = x^² + 6x + 8

Then we multiply the trinomial that we got from the first stage and multiply that by the remaining binomial:

(x^² + 6x + 8) (x + 4)

= x^³ + 4x^² + 6x^² + 24x + 8x + 32

Collect the like terms together to give you:

x^³ + 10x^² + 32x + 32

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Last month, the daily balance in Joana's credit card account was $1,000 for 9 days, $750 for 10 days, $850 for 4 days, and $900
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Answer:

<em />Average = \$873<em />

<em />

Step-by-step explanation:

Given

$1000 for 9 days

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Required

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First, we need to compute the number of days her balance is $900

Assuming the billing cycle is 30 days;

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Average = \frac{\sum fx}{x}

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Average = \frac{26200}{30}

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3 years ago
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Step-by-step explanation:

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3 years ago
Does the chart below represent a proportional relationship? What is the rate of change?
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This chart represents a proportional relationship. The rate of change will be 4.

<h3>What is the constant of proportionality?</h3>

Firstly, there is a proportional relationship.

Two values x  and y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called the constant of proportionality.

Given;

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This chart represents a proportional relationship.

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brainly.com/question/20048815

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