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Juli2301 [7.4K]
3 years ago
6

If the maximum value of y =-x²+ax+b is 8 when x = 3, find the values of a and b​

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0
Y' = -2x+a
0 = -2(3)+a
6=a

8=-(3)^2 +(3)(6)+b
b=-1
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lozanna [386]

First, find 30% of 2,000. To do so you need to convert 30% into a decimal by dividing it by 100.

30% ⇒ 0.30

Now multiply 0.30 by 2,000 to find 30% of 2,000.

2,000 × 0.30 = 600

Subtract 600 from 2,000 to find the price of the notebook in 2013.

2,000 - 600 = 1,400

Now find 30% of 1,400 using the same process.

1,400 × 0.30 = 420

Subtract 420 from 1,400 to find the price of the notebook in 2014.

1,400 - 420 = 980

<h2>Answer:</h2>

<u>The value of the notebook in 2014 is </u><u>$980</u><u>.</u>

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mr_godi [17]
First let's define the variables of the problem:
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The question is asking what will we get if we add 1+1.

Let us use an example to understand this.

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Step-by-step explanation:

<3 ya have a nice day you sweetie pie munchkins

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