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horrorfan [7]
3 years ago
6

Please help! I will give the brainliest if you give me a good answer.

Mathematics
1 answer:
gogolik [260]3 years ago
3 0

Answer:

Hi there!

Your answers are:

<h2><u>1. 21</u></h2><h2 /><h2><u>1. </u><u>1</u><u>2</u></h2>

Step-by-step explanation:

1. The derivative of 2x^2 +x -1 is equal to <u>4</u><u>x</u><u>+</u><u>1</u>

Now, plug in x= 5 into 4x+ 1

4(5) +1

20+1

21

2. The derivative of 12x -6 is equal to 12

that means:

f(x) = 12

f(x) = 12AND

f(x) = 12ANDf(3) = 12

<u>Hope</u><u> </u><u>this </u><u>makes</u><u> </u><u>sense</u><u>!</u><u> </u><u>(</u><u>updated</u><u>)</u>

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