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3 years ago

(−3p2+5p−2)+(−p2−8p−15)=

Mathematics

1 answer:

Blizzard [7]3 years ago

8 0

Answer:

Step-by-step explanation:

When you distribute a positive sign to a parentheses, you essentially change nothing. So, you can drop all of the parentheses for this entire equation. Now combine like terms.

$-4p^2-3p-17$

$-1(4p^2+3p+17)$

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A contractor is in charge of hiring people for a construction project. The number of days it would take to complete the project

sweet-ann [11.9K]

Answer:

$\text{Domain of x}=[1,\infty), x \in Z^+$

Step-by-step explanation:

Given the function: $f(x)=\dfrac{280}{x},$ where:$

f(x) =number of days it would take to complete the project

x =number of full-time workers.

$\text{When x=0, }f(x)=\dfrac{280}{0}=$Undetermined\\\text{When x=1, }f(x)=\dfrac{280}{1}=$280 days\\\text{When x=280, }f(x)=\dfrac{280}{280}=$1 day\\\text{When x=560, }f(x)=\dfrac{280}{560}=$0.5 days$

The domain of a function is the complete set of possible values of the independent variable.

In this case, the independent variable is x, the number of full-time workers. We have shown that x cannot be zero as there must be at least a worker on ground.

Therefore, an appropriate domain of the function f(x) is the set of positive integers (from 1 to infinity).

$\text{Domain of x}=[1,\infty), x \in Z^+$

7 0

3 years ago

-3.7 + 1/4<br> plz help me with this.

vredina [299]

Answer:

-3.84

Step-by-step explanation:

7 0

3 years ago

Can someone please help me, it's science and math put together I just don't understand how to do this problem maybe it's the way

sergij07 [2.7K]

What ? What ?
Did you write the first two answers in pencil ?
They're correct ! Just do the other two exactly the same way.

-- Do the division problem printed in the "Distance ..." column.

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6 0

3 years ago

(a)/(2a)+(4)/(3a^(2)) ayuda por favor

Irina-Kira [14]

Answer:

3a^2+8/6a^2

Step-by-step explanation:

there ya go hope this helps

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3 years ago

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Vesna [10]

Answer:

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Step-by-step explanation:

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3 years ago