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Alex
3 years ago
6

#3 need help with this math problem please.

Mathematics
1 answer:
kupik [55]3 years ago
5 0

Answer:

undefined

Step-by-step explanation:

f(x) = 2/ (-5x-10)

Let x = -2

f(-2) = 2/ (-5(-2)-10)

         =2/(10-10)

         =2/0

         = undefined

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Evaluate 4a + 7b + 3a − 2b for a = 5 and b = −3.
blsea [12.9K]

Answer:

<h2>20</h2>

Step-by-step explanation:

4a+7b+3a-2b\qquad\text{combine like terms}\\\\=(4a+3a)+(7b-2b)\\\\=7a+5b\qquad\text{put a = 5 and b = -3 to the expression}\\\\7(5)+5(-3)=35-15=20

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3 years ago
Y varies directly with x and y = 12 when x =5 what is the value of y when x = 8
torisob [31]
Y and x are directly proportional, as stated by hypothesis. Let's use the rule of three to find y when x = 8.

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Hope this Helps! :D
3 0
3 years ago
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3 years ago
What is the vertex of the quadratic function given in the table?
likoan [24]

Answer:

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If you try picturing the points in your head, you will see it make a U and at the bottom of the U is the vertex.

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