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AURORKA [14]
3 years ago
13

Is -0.723 rational or irrational

Mathematics
1 answer:
cupoosta [38]3 years ago
6 0

Answer:

i think its a irrational number but i could be wrong! :)

Step-by-step explanation:

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If f is the function defined by f(x) = 3x^5 - 5x^4, what are all the x coordinates of points of inflection for the graph of f?
gregori [183]

Answer:

D: 0 and 1

Step-by-step explanation:

Function is defined by;

f(x) = 3x^(5) - 5x⁴

Now, an inflection point will be a point on the graph where the inflection or concavity changes.

Thus, let's find the derivatives until we get there;

f'(x) = 15x⁴ - 20x³

f''(x) = 60x³ - 60x²

So factorizing gives;

f''(x) = 60x²(x - 1)

At f''(x) = 0, we have; x = 0 or x = 1

Thus, the x coordinates of points of inflection are 0 & 1

4 0
3 years ago
Marianne is 15 years old and her brother is 5 years old; is the relationship between their ages proportional?
cricket20 [7]

Answer:

The ratio is 15:5 or 3:1. If Marianne is 3 years old, her brother is 1. And it is proportional...

Step-by-step explanation:

4 0
3 years ago
PLEAS HELP ME!!!!!!!!!!!!!!!!Use a unit rate to find the unknown value. <br> 52/13, 12/?
Nostrana [21]

Answer: 3

Step-by-step explanation:

52/13 can be simplified to 4. what do you have to put under 12 so it can simplify to 4? The answer is 3.

5 0
3 years ago
HELP PLEASE! FOR EACH RELATION, DECIDE WHETHER OR NOT IT IS A FUNCTION.​
Mashutka [201]

Answer:

relation 1: function

Relation 2: function

relation 3: not a function

relation 4: not a function

Explanation:

There should be no repeating values in the domain for the relation to qualify for a function.

4 0
3 years ago
Newton’s Second Law of Motion states that the acceleration of an object is directly proportional to the force exerted on the obj
GalinKa [24]

Answer:35N

Step-by-step explanation:

Cross multiply and divide to find the missing value

3 0
3 years ago
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