Rhett decides to build a square room for his movie and music collection. if the area of the room is 4x2 + 28x + 49 square feet, what is the length of one side of the room? . (2x + 7) feet. (7x - 2) feet. (7x + 2) feet. (2x - 7) feet

 The correct option is (A) (2x + 7) feet.

Step-by-step explanation:  Given that Rhett decides to build a square room for his movie and music collection and the area of the room is (4x2 + 28x + 49) square feet.

We are to find the length of one side of the room.

We know that the area of a square having side length of 'a' units is a² square units.

So, to find the side length of the square room, we need to convert the area in form of a perfect square.

The are of the square room is

Since the area of the square room is (2x + 7)², so the length of one side of the room will be (2x + 7) feet.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

mark brainliest.