What is a polynomial with 4 terms called?

Answers

Answer 1

Answer: it is called Polynomial ;)
hope this helps ;)

Answer 2

Answer: It's called a "polynomial of the 3rd order". This because the order of the power in this function:
f(x) = 3x³ + 2x² - 6x + 7

is three (notice the ³ there).

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Reminders? What’s the answer:)

Prove that 2x^2+x+8>0 for all real values of x.

Answers

$y = 2x^2 + x + 8$ is a polynomial of even degree, with a positive $x^2$ coefficient, meaning that
- it will have exactly one turning point
- that turning point will be a minimum

So, if the y-coordinate of the turning point is positive, then this polynomial will be positive for all real values of x.

At a turning point, the gradient of y will be equal to 0. The gradient of y is given by
$\frac{\mathrm{d}y}{\mathrm{d}x} = 4x + 1$ .

To find the turning point, set this equal to 0 and solve for x:
$4x + 1 = 0 \implies x = -(1)/(4)$ .

Substituting this value into the equation gives
$y = 2(-(1)/(4))^2 + (-(1)/(4)) + 8 = (1)/(4) - (1)/(4) + 8 = 8 \ \textgreater \ 0$ .

Since the minimum point of the equation is greater than 0, the equation will be greater than 0 for all real values of x.

William wants to hang a mirror in his room. The mirror and frame must have an area of 50 square feet. The mirror is 5 feet wide and 8 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?3x2 + 13x − 20 = 0
4x2 + 14x − 7 = 0
4x2 + 26x − 10 = 0
2x2 + 2x − 10 = 0

Answers

The last one. 2x2+2x-10=0

Jason has a piece of wire that is 62.4 inches long. He cuts the wire into 3 equal pieces. Which is the best estimate of the length of each piece of wire.

Answers

Answer:

The best estimate of the length of each piece of wire is 20.8 inches (Approx).

Step-by-step explanation:

Let us assume that the length of each pieces of wire be x.

As given

Jason has a piece of wire that is 62.4 inches long.

He cuts the wire into 3 equal pieces.

Than the equation becomes

3x = 62.4

$x = (62.4)/(3)$

x = 20.8 inches (Approx)

Therefore the best estimate of the length of each piece of wire is 20.8 inches (Approx).

62.4/3=20.8 is one of the 3 wires that are equal

Jill bought a lamp for $40. She sold it at a garage sale for $12. What was the approximate decrease?

Answers

Answer:

she was left with 28$ I'm in high school i think I'm right

Step-by-step explanation:

This is about angles. Please answer someone?

Answers

Actually, this is not about angles. It's about the length of the sides in a right triangle.

In EVERY right triangle, the squares of the lengths of the short sides add up
to the square of the length of the longest side. You're in high school math,so
I'm SURE you've heard that in class before ... possibly even just before you
were assigned this problem.

Let's say that again: The squares of the lengths of the sides that meet at
the right angle add up to the square of the length of the longest side. In
the triangle in this particular problem, that means
a² + b² = c²

You know the lengths of 'b' and 'c', so you shouldn't have any trouble finding
the length of 'a'.

Need help please!!!!!!!

Answers

Answer:

First Option {-2 , 0 , 2}

Step-by-step explanation:

A critical point occurs when the derivative is 0 or undefined.

The function in the question is undefined at x = 2 and at x = -2 because if we put x = 2 or x = -2 the denominator becomes 0 hence anything divided by 0 is undefined, and the derivative equals 0 at x = 0 so the critical points are

{-2 , 0 , 2}

Use the quotient rule to find the derivative of the function then equal it to zero

$y=(x^2-1)/(x^2-4)\n\n(dy)/(dx)=((x^2-4)(2x)-(x^2-1)(2x))/((x^2-4)^2)\n\n0=((x^2-4)(2x)-(x^2-1)(2x))/((x^2-4)^2)\n\n0=2x^3-8x-2x^3+2x\n0=-6x\nx=0$

I believe it’s the last one
Mark brainliest if satisfied

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Find the value of x , if log₂ [log₅ (log₃x)] = 0

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