If (x + 4) is a factor of f(x), which of the following must be true?

1 answer:

8 0

F(-4) = 0

Here, we replace x with -4. In doing so, we see that (-4+4) is indeed 0, making this the correct answer.

The next two choices are incorrect since only -4 is a root of f(x), as explained above (a root occurs when the function equals zero when plugging in that “root”).

The last answer is incorrect since plugging in 4 will get f(4)=8.

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I GIVEEEEE BRAIMLILSTER

timofeeve [1]

Answer:

$\boxed{\boxed{\pink{\bf \leadsto It \ will \ take \ 5 hours \ to \ travel \ 300 \ miles. }}}$

<h3>Step-by-step explanation:</h3>

According to Question , a plane travels 120 miles in 2 hours. So here we will use unitary method .

$\bf\implies If \ it \ covers \ 120 \ miles \ in \ 2 \ hours \\\\\bf\implies Then \ one \ mile \ will \ be \ covered \ in \ \dfrac{120}{2} hrs \\\\\bf\implies Hence \ 300 \ miles \ will \ be \ covered \ in \ \dfrac{2}{120}\times 300 hrs = \red{5 \ hours }$

<h3>Hence it will cover 300 miles in 5 hours .</h3>

Here it was a case of direct proportion in which if two things are directly proportional to each other. If one thing thing increases then the value of second also increases. Here if the time increases then the distance also increases

5 0

2 years ago

What is the solution to x-4y=-5 and -x+6y=7

Triss [41]

x - 4y = -5
-x + 6y = 7
---------------add
2y = 2
y = 1

 x - 4y = -5
x - 4(1) = -5
x - 4 = -5
x = -1

answer
x = -1 and y = 1

8 0

2 years ago

A capacitor has plates of area

kumpel [21]

Answer:

6.1*10^-6

Step-by-step explanation: