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3 years ago

Example of a 3rd degree polynomial in standard form?

Mathematics

1 answer:

azamat3 years ago

5 0

Answer:

4x^3 + 2x^2 +8x -9

Step-by-step explanation:

A third degree polynomial is a is a polynomial whose highest power of x is to the power of three. Standard form is

Ax^3 + Bx^2 + Cx + D where A is non zero

An example would be

4x^3 + 2x^2 +8x -9

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What is the value of x?<br> 52°<br> 93°<br> (x + 3)<br> 78°

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

Step One

Find the exterior angle connected to the 93 degree angle. It is also a supplement to 93. Supplementary angles add to 180. Call the exterior angle y

93 + y = 180 Subtract 93 from both sides

y = 180 - 93

y = 87

Step two

Add all the exterior angles. They equal 360

x + 52 + 87 + x + 3 + 78 = 360 Combine the like terms

Step 3

Solve the equation

2x + 220 = 360 Subtract 220 from both sides

2x = 360 - 220

2x = 140 Divide by 2

x = 70

I don't see that anywhere, but I'm pretty sure I'm right.

4 0

2 years ago

I am thinking of a number x. what algebraic expression represents 7 less than three times this number?

sammy [17]

Step-by-step explanation:

Answer: 3x-7

Explanation: x times 3

(3x)

subtracted by 7

(3x-7)

Is this what you are looking for?

8 0

3 years ago

Bruce owns a small grocery store and charges $4.75 per pound of produce. If a customer orders 5 pounds od produce how much does

andriy [413]

He charges 4.75 per lb....

so 5 lbs would cost (5 * 4.75) = $ 23.75 <==

7 0

3 years ago

Circles M and K are congruent, QR is congrent to LN. Find the length of QR

Novosadov [1.4K]

Given QR is congrent to LN and QR = 4x + 2 and LN = x + 7.

So, QR = LN

Hence, we can set up an equation as following:

4x + 2 = x + 7

4x + 2 - x = x + 7 - x Subtract x from each sides.

3x + 2 = 7 By simplifying.

3x + 2 - 2 = 7 - 2 Subtract 2 from each sides.

3x = 5

$\frac{3x}{3} =\frac{5}{3}$ Divide each sides by 3 to isolate x.

So, $x=\frac{5}{3}$

Next step is to plug in $x=\frac{5}{3}$ in QR = 4x+2 to get length of QR.

So, $QR = 4(\frac{5}{3})+2$

$=(\frac{20}{3})+\frac{2}{1}$ Since 2 can be written as 2/1.

By multiplying the second fraction by the common denominator 3.

$=(\frac{20}{3})+\frac{2*3}{1*3}$

$=(\frac{20}{3})+\frac{6}{3}$ By simplifying the second fraction.

$=(\frac{26}{3})$

So, $QR=\frac{26}{3}$

5 0

3 years ago

5m + 9n if m = -7 and n = 4

dusya [7]

Answer:

Step-by-step explanation:

5m + 9n

5(-7) + 9(4)

-35 + 36

8 0

3 years ago

Read 2 more answers