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Rus_ich [418]
3 years ago
9

Which of the following parabolas opens upward and appears narrower than y = −3x^2 + 2x − 1? A. y = 4x^2 − 2x − 1 B. y = −4x^2 +

2x − 1 C. y = x^2 + 4x D. y = −2x^2 + x + 3
Mathematics
1 answer:
Kamila [148]3 years ago
7 0
Narrowing it down it's either a or c because the other 2 choices open downward (negative a).
Graphing the 2 parabolas choice c is narrower.
c
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Mariulka [41]

Answer:

B. Graph 2 represents a proportional relationship, but graph 1 does not.

Step-by-step explanation:

All proportional relationships pass through the origin. Graph 2 does but Graph 1 does not. Additionaly, Graph 2 is a straight line that represents a proportional relationship. Another way to find out if it is proportional is to find the constant of proportionality by dividing the y by the x in different parts of the line. The numbers should all have the same constant of proportionality.

Examples (all found in Graph 2):

15/3 = 5

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5/1 = 5

7 0
3 years ago
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saul85 [17]

Answer:

ascending order:

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Step-by-step explanation:

angle opposite to the largest side is the largest angle:

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3 0
3 years ago
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Mrrafil [7]
They get 2/3 because 2 divided by 3=2/3.
8 0
3 years ago
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lara31 [8.8K]

Answer:

option no.D

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Step-by-step explanation:

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7 0
3 years ago
Ok guys my friend is telling me that i am doing this problem wrong 4^4+1/2=256.5 and he is tell me that it is 16.5 am i right or
Alexxx [7]

Simplify 4^4 to 256

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Simplify 256 + 1/2 to 513/2

513/2 = 256.5

Since both sides equal, there are infinitely many solutions.

3 0
3 years ago
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