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2 years ago

Will the sum of two linear expressions each with an x-term , always,sometimes,or never have an x-term ? Explain your reasoning

1 answer:

4 0

Sometimes it will, and sometimes it won't.

I reason as follows:

(21 + x) + (30 + 2x) = 51 + 3x has an 'x' term

(42 + x) + (30 - x) = 72 has no 'x' term.

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Factoring polynomials

Gnoma [55]

Use FOIL
28x² -8xy +7xy -2y²
28x² -xy -2y²

4 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B1024%7D%20" id="TexFormula1" title=" \sqrt{1024} " alt=" \sqrt{1024} " align="abs

4vir4ik [10]

96
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8 0

2 years ago

Pension = 12% of salary

nadya68 [22]

Answer:

Salary = $43,313.40

Step-by-step explanation:

Let his salary be x.

Now we're told that;

Pension = 12% of his salary = 0.12x

Health Insurance = 0.3% of salary = 0.003x

Disability Insurance = 0.4% of salary = 0.004x

Since his total contract with benefits is worth $48,814.20

This means that;

x + 0.12x + 0.003x + 0.004x = 48814.2

1.127x = 48814.2

x = 48814.2/1.127

x = $43,313.40

7 0

2 years ago

24 written as a percentage

Yanka [14]

Any number is equal to that number over 1

So x is equal to x/1

Same thing with 24. 24 = 24/1

To get it into percent we multiply by 100 so:

$\sf{\frac{24}{1}=\frac{24\times100}{1\times100}}$

And simplifying that we get

$\sf{\frac{2400}{100}}$

And x/100 = x%

so 2400/100 = 2400%

So your answer is <em><u>2400%</u></em> :)

5 0

3 years ago

PLS Help me! This graph shows the outside temperature (in degrees Celsius) over the course of 12 hours, starting at midnight (x

viktelen [127]

Answer:

The domain is the set of all possible x-values

Domain is the time here

The range is the resulting y-values

The range is the outside temperature is here

Function is decreasing between x= 0 to 3

It means the temperature is decreasing between midnight and 3 AM

5 0

2 years ago