2 years ago

PLEASE HELP ! What is the value of the function at x = 3? Enter your answer in the box.

1 answer:

6 0

4 because based on the graph, when x is 3, y is 4

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Law Incorporation [45]

Hello there! The value of x is 20 or -20

"20 or - 20" is one answer so you are supposed to answer 20 or -20, not choose only one.

Step-by-step explanation:

$\large{ \frac{ {x}^{2} }{ {5}^{2} } = {4}^{2} }$

First, we simplify 5² and 4²

$\large{ \frac{ {x}^{2} }{25} = 16}$

Multiply the whole equation by 25 to get rid of the denominator.

$\large{ \frac{ {x}^{2} }{25} (25) = 16(25)} \\ \large{ {x}^{2} = 400}$

Square both sides and solve the equation.

$\large{ \sqrt{ {x}^{2} } = \pm{ \sqrt{400} }}$

Also don't forget to write "plus or minus" symbol when we are solving a quadratic equation by squaring both sides.

$\large{x = \pm{20}}$

4 0

2 years ago

lina2011 [118]

5 nanometers is smaller

8 0

3 years ago

MrRa [10]

Answer:

A is the answer just did the quiz

5 0

2 years ago

lianna [129]

If I'm not wrong, it should be 27cm^3. Hope this helps!!

3 0

2 years ago

arsen [322]

Answer:

GCF(greatest common factor) of 5 is 5.

6 0

3 years ago