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Tasya [4]
2 years ago
7

Which of the following ratios is not equivalent to the rest: *

Mathematics
2 answers:
AVprozaik [17]2 years ago
4 0

Answer:

36:56

Step-by-step explanation:

Solnce55 [7]2 years ago
3 0

Answer: C 34:55

Step-by-step explanation:

start with 6:8 that’s the first one multiply by 9 on each side you get 54:72 so that’s the same and then 6:8 divide by 2 and you get 3:4 but for 36:56 you’d have to multiply by 6 and that would give you 36:48 not 36:56

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Yuri [45]
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5 0
3 years ago
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I'm really confused about this question about Solving Systems by Elimination
velikii [3]

Answer:

x=10

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Step-by-step explanation:

1)add the equations and find what x is.

x-y=8

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—————

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— —

2 2

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3)fill in x for the second equation.

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since x=10,replace x with 10.

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—————-

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4 0
3 years ago
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Nadusha1986 [10]
Answer:5
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2 years ago
f(x) = x4 - 50x2 + 3 (a) Find the intervals on which f is increasing. (Enter the interval that contains smaller numbers first.)
shtirl [24]

Answer:

  (-5, 0) ∪ (5, ∞)

Step-by-step explanation:

I find a graph convenient for this purpose. (See below)

__

When you want to find where a function is increasing or decreasing, you want to look at the sign of the derivative. Here, the derivative is ...

  f'(x) = 4x^3 -100x = 4x(x^2 -25) = 4x(x +5)(x -5)

This has zeros at x=-5, x=0, and x=5. The sign of the derivative will be positive when 0 or 2 factors have negative signs. The signs change at the zeros. So, the intervals of f' having a positive sign are (-5, 0) and (5, ∞).

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goblinko [34]
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