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rodikova [14]
3 years ago
5

What is the degree of 5x7 - 4x5 + 2x6 - x4?

Mathematics
1 answer:
Verdich [7]3 years ago
6 0
The degree of a polynomial is the sum of the greatest exponent. The answer is D, because seven is the largest number.
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This app doesn’t know how to read a picture
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It’s the 3rd one hopefully this helps
5 0
3 years ago
Multiply.<br> (d+7)(d-7)<br> Simplify your answer.
romanna [79]

Answer:

\huge\boxed{(d+7)(d-7)=d^2-49}

Step-by-step explanation:

\bold{METHOD\ 1:}\\\\(d+7)(d-7)\qquad|\text{use}\ (a+b)(a-b)=a^2-b^2\\\\=d^2-7^2=d^2-49\\\\\bold{METHOD\ 2:}\\\\(d+7)(d-7)\qquad|\text{use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(d)(d)+(d)(-7)+(7)(d)+(7)(-7)\\\\=d^2-7d+7d-49\qquad|\text{combine like terms}\\\\=d^2+(-7d+7d)-49\\\\=d^2-49

7 0
3 years ago
Which equation is a linear equation?<br> y=2x2+3<br> y=2/x+3<br> y=2x+3<br> y=2x+3
Setler [38]
Y=2x+3 is a linear equation.
8 0
3 years ago
Given the two half-reactions, what must be done in the next step before the reaction can be balanced? First: upper A u superscri
kenny6666 [7]

In the first reaction, Gold (Au) gets 3 electrons and became Gold. In the second reaction, Iodine (I) loses 2 electrons and became Iodine.

<h3>What are cations and anions?</h3>

When the atom loses the election then it is called a cation and when it gains the electron is called an anion.

Two reactions are given.

First reaction;

Au³⁺ + 3e⁻ ⇒ Au

In the first reaction, Gold (Au) gets 3 electrons and became Gold.

Second reaction;

2I⁻ ⇒ I₂ + 2e⁻

In the second reaction, Iodine (I) loses 2 electrons and became Iodine.

More about the cation and the anion link is given below.

brainly.com/question/1659592

8 0
3 years ago
The table shows the air temperature in degrees Celsius at different altitudes in kilometers:
miv72 [106K]

Answer:

Third graph, I took the test

Step-by-step explanation:

3 0
3 years ago
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