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3 years ago

Can anybody help out with this? I’m so confused

Mathematics

1 answer:

dolphi86 [110]3 years ago

5 0

<h2>Answer:</h2>

x²+8x+16

<h2>Step-by-step explanation:</h2>

So it is a square with a side of x+4 as it is written in the question.

You calculate the area by (x+4)(x+4)

That is x²+8x+16

The picture is just for a visual representation. If you wouldn't want to multiply as I showed above, you would just add like terms.

x²+4x+4x+16

x²+8x+16

I hope I helped you. I will be happy If you mark my answer as brainliest.

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a class is planning a field trip to the aquarium. The cost of a ticket is $25.95. With the cost of transportation, each student

Citrus2011 [14]

Answer:

25.95 + 36

Step-by-step explanation:

You don't have any options so the answer I would say is 25.95 + 36, or the other way around.

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2 years ago

Select the two values of x that are roots of this equation.<br>x + 2x - 6 = 0

VLD [36.1K]

For this case we must solve the following quadratic equation:

$x ^ 2 + 2x-6 = 0$

Where:

$a = 1\\b = 2\\c = -6$

The solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting:

$x = \frac {-2 \pm \sqrt {2 ^ 2-4 (1) (- 6)}} {2 (1)}\\x = \frac {-2 \pm \sqrt {4 + 24}} {2}\\x = \frac {-2 \pm \sqrt {28}} {2}\\x = \frac {-2 \pm \sqrt {2 ^ 2 * 7}} {2}\\x = \frac {-2 \pm2 \sqrt {7}} {2}\\x = -1 \pm \sqrt {7}$

Thus, we have two roots:

$x_ {1} = - 1+ \sqrt {7}\\x_ {2} = - 1- \sqrt {7}$

ANswer:

$x_ {1} = - 1+ \sqrt {7}\\x_ {2} = - 1- \sqrt {7}$

8 0

3 years ago

4 x 2 -3= equals what.

yaroslaw [1]

Answer:

Step-by-step explanation:

4 x 2 - 3 =

8 - 3 =

4 0

3 years ago

Read 2 more answers

THIS IS DUE IN 10 MIN!!

AVprozaik [17]

The discount is 50-14 = $36

% discount = (36/50)*100 = 72%

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2 years ago

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