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sveta [45]
3 years ago
7

Which of the following is the maximum value of the function y=-2x^2+5

Mathematics
2 answers:
Bess [88]3 years ago
5 0
Remember that x² has minimum value 0. Multiple x² by -1 would flip it across x-axis so -x² would have maximum value 0.

Now multiplying -x² by 2 stretch it vertically, however 2 times 0 is still 0 so maximum value is still 0.

Now we add it by 5 which makes it shifts 5 units up, so this affects maximum value.

So everything will be shifted 5 units up, so new maximum would be 5.

Final answer: 5

Hope this helps.
weeeeeb [17]3 years ago
3 0

Answer:5

Step-by-step explanation:

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I know it's not a lot of points but yeah :(​
tatuchka [14]

Answer:

2) A, 3) Shawn is looking for a good book, he reads 12 books and then decides to read 1/4 of the amount he already read. How many books has Shawn read in total? 4) A, C, E. 5) 4

Step-by-step explanation:

2) Elena already walked 12 miles, she then walks another 1/4 of those 12 miles. The answer is A.

3) Shawn is looking for a good book, he reads 12 books and then decides to read 1/4 of the amount he already read. How many books has Shawn read in total?

4) to find the answers figure out how much they multiply one number by and multiply the other number by that amount. For example, the ratio 2:5 can be the same as 4:10 because you are multiplying the original ratio by 2 to get the new ratio.

5) The diameter of a circle is the length of one side to another. to find the length of the outer edge you need to find the circumference. To find the circumference of a circle you must use \pi*Diameter. To find the answer we must use 180/\piD. Since pi can not be defined we will use 3.14 as a rough estimation. 3.14*12=37.68. 180/37.68=4.777070064. Since it doesn't make much sense to do .8 of a invitation then we must round down. The answer is 4.

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The sum of two numbers is 19 . When the second number is subtracted from the first​ number, the difference is 17 . Find the two
zhenek [66]

Answer:

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Step-by-step explanation:

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