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3 years ago

What is a simplified expression for (+)−(+)?

Mathematics

1 answer:

mariarad [96]3 years ago

4 0

Answer: - Just a minus sign

Subtracting a positive is subtraction.

<h3>The - changes the second (+) to a negativ </h3>

Step-by-step explanation:

Perhaps tthe point of this question would br to contrast it with

(+)-(-) becomes +

<h3>That would be Subtracting a negative changes to addition.</h3>

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BARSIC [14]

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Step-by-step explanation: Right bro. 1000%

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2 years ago

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fredd [130]

18^4 this is another way to show an exponent

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3 years ago

Hey:) can you please help me posted picture of question

PolarNik [594]

Answer:
x¹³ - x⁹ - 9x⁸ + 9x⁴

Explanation:
Before we begin, remember the following:
xᵃ * xᵇ = xᵃ⁺ᵇ

Now, for the given:
To answer the question, we will simply multiply each term from the first bracket by each term from the second bracket and then combine like terms to get the final expression.

This can be done as follows:
(x⁸ - x⁴)(x⁵ - 9)
x⁸(x⁵) + x⁸(-9) - x⁴(x⁵) - x⁴(-9)
x¹³ - 9x⁸ - x⁹ + 9x⁴

Rearrange in order of decreasing powers, we will end up with:
x¹³ - x⁹ - 9x⁸ + 9x⁴

Hope this helps :)

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3 years ago

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The designated market area (DMA) of Boston has approximately 3 million television households. Audience research shows that 45 pe

inna [77]

Answer:

22.2%

Step-by-step explanation:

The Program rating of a program is the percentage of TV households in an area that are tuned to a specific program during a specific time period.

The designated market area (DMA) of Boston has approximately 3 million television households.

Audience research shows that 45 percent of these households had their sets turned on during a particular Saturday evening.

45% of 3 Million = 0.45 X 3000000 = 1,350,000

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Therefore, the program rating for Sports Stories in the Boston DMA is:

$\frac{300000}{1350000} X 100 =22.2\%$

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guapka [62]

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3 years ago