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stellarik [79]
3 years ago
14

Is x^(-2)+5 a polynomial expression? Why or why not? Read More >>

Mathematics
1 answer:
Mariulka [41]3 years ago
4 0

Well.. a polynomial expression is an expression that has 3 or more different algebraic terms.

Algebraic terms can be: x^2, 2x, or x^3

One example is: x^2 + x^3 - 7y

Since x^(-2)+5 only has one algebraic term, which is x^(-2), this is not a polynomial.

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Is 5.333333 rational or irrational
tekilochka [14]

Step-by-step explanation:

irrational ok????>>>>

8 0
3 years ago
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A rectangle is shown. The length of the rectangle is labeled 18 inches. The width of the rectangle is labeled 6 inches.
Airida [17]
I think the answer is D.
3 0
4 years ago
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for a graph of a quadratic i have x intercepts that are x=12 and x =35 do i have enough information to find the y-coordinate of
goldenfox [79]

Answer:

No... provided no other information or no graph is provided.

Step-by-step explanation:

You can find the x-coordinate of the vertex which can be calculated using the two given x-intercepts. Using the symmetry of the parabola, it would just mean the vertex should lay midway between the x's. So the x-coordinate of the vertex is (12+35)/2=47/2.

However, we do not have enough information about the relationship between x and y to find the y-coordinate of the vertex.

All we are given is y=a(x-12)(x-35) (where a is real number) since we know the relationship is quadratic, and the zeros are 12 & 35.

So we could have many possible y-coordinates for our vertex since we don't know the value of a in our equation and we can plug in our x-coordinate for our vertex to find them all.

y=a(47/2-12)(47/2-35)

I'm just going to put everything to right of a in calculator:

y=-529/4 ×a

So that's all the possible y-coordinates for the vertex.

7 0
3 years ago
PLS HELP with this problem !!!
Sophie [7]

Answer:

god

Step-by-step explanation:

5 0
3 years ago
What are the numerical measures of the angles?
vredina [299]
ANSWER

The sum of m∠DEA and m∠AEB is 180°.

Reason: The sum of angles on a straight line is always 180°.

(x + 25)+(9x + 10)=180 \degree

Group like terms to get,

x+9x=180-25-10

Simplify, and get,

10x = 145

Divide both sides by 10 to get,

x = 14.5

We substitute this value to get the required angles.

m \: ∠DEA=x+25

m \: ∠DEA = 14.5 + 25 = 39.5 \degree

m\:∠AEB=9x+ 10

m\:∠AEB = 9(14.5) + 10

m\: ∠AEB=130.5 + 10 = 140.5 \degree
7 0
3 years ago
Read 2 more answers
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