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andrezito [222]
4 years ago
12

What does 3x+8+9x^2 equal?

Mathematics
1 answer:
densk [106]4 years ago
6 0

Answer:

Stays the same. OR Standard form: 9x^2+3x+8

Step-by-step explanation:

You can't factor it. When you add them it's the same bc, you can't combine anymore like terms. let me know if this helps at all? What is your objective? Tryna factor? Add polynomials? ???

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Determine the domain of the function, and choose the correct interval and inequality notations,
pickupchik [31]

Answer:

<u></u>

  • <u>See below</u>

Explanation:

Determining the <em>domain</em> of the function P(x) = 2x + 8 is very trivial and does not require the uses of separate intervals.

The domain of a function is the set of input values (x) for which the function is defined. Thus, the domain of P(x) = 2x + 8 is all the real number, which in interval notaion is:

  • (- ∞, ∞)

The symbol ∞ is used to indicate that there is not limit for the value of x: it can goe from any negative number to any positive number).

For didactic purposes let's determine the domain of the function

P(x) = 2/(x+8).

In this case, the function is not defined when the denominator equals 0.

Then, the domain excludes the values for which x + 8 = 0.

  • x + 8 = 0 ⇒ x = - 8.

Then, the solution is all the real numbers different to - 8.

In <em>interval notation</em> it is:

  • (- ∞, -8) ∪ (-8, ∞)

In form of <em>inequaliy</em> that is:

  • x < - 8 ∪ x > - 8

That means, all the real numbers less than - 8 and all the real numbers greater than 8.

8 0
3 years ago
PLEASE HELP 100 POINTS
Karolina [17]

Step-by-step explanation:

the total surface area is the sum of the individual areas.

we have the ground area : a 6×6 square. = 36 cm²

and we have 4 equal triangles.

the area of a triangle is baseline × height / 2.

which is for each of these triangles

6 × 12 / 2 = 3 × 12 = 36 cm²

so, the total surface area of the pyramid is

36 + 4×36 = 5×36 = 180 cm²

8 0
2 years ago
Read 2 more answers
Which shows the equation below written in the form ax2 + bx + c = 0?
Svetach [21]

Answer:

A

Step-by-step explanation:

X^2 + 6X + 8 =3

TRANSPOSE 3 TO LEFT

X^2 + 6X + 8 - 3 = 0

CALCULATE

X^2 + 6 X + 5 = 0

3 0
3 years ago
A ​$220 suit is marked up by 20​%.<br> What is the selling price?
kotegsom [21]

Answer: The selling price is $176

Step-by-step explanation:

3 0
3 years ago
(4x-2)(2x-6) in standard form
lesya692 [45]
4×-2=-8 and 2×-6=-12 I hope it helps you
8 0
3 years ago
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