2 years ago

Minimize Q=x^2+2y^2, where x+y=3

1 answer:

Studentka2010 [4]2 years ago

6 0

<span>The first step you need to do is to rewrite
x+y=3
as y=3-x
</span><span>Now we can replace the y in the equation with our newfound value for y, which is
y=3-x.
So lets write it now like this
Q=x^2+2(3-y)^2
=x^2+18-12x+2x^2
=3x^2+18-12x
</span>Hope this helps

You might be interested in

On Tuesday Conrad had 3 times as many sales as on Monday. On Wednesday, he had 9 times as many sales as on Monday. Over the thre

Vlad1618 [11]

Answer:

Conrad had 56 sales on Monday , 168 sales on Tuesday and 504 sales on Wednesday.

Step-by-step explanation:

Let x be the no. of sales on Monday

We are given that On Tuesday Conrad had 3 times as many sales as on Monday.

So, Conrad had sales on Tuesday = 3x

We are also given that On Wednesday, he had 9 times as many sales as on Monday.

So, Conrad had sales on Wednesday = 9x

Over the three days, he had a total of 728 sales

So, x+3x+9x=728

13x=728

$x=\frac{728}{13}$

x=56

Conrad had sales on Tuesday = 3x =3(56)=168

Conrad had sales on Wednesday = 9x=9(56)=504

Hence Conrad had 56 sales on Monday , 168 sales on Tuesday and 504 sales on Wednesday.

7 0

2 years ago

Fr/ee points 3 i quit brainly i cheat/ed enough this semester

ohaa [14]

Too

Thanks

Hahahah

16263636

6 0

2 years ago

Read 2 more answers

Which table represents a linaer function

Anettt [7]

Answer:

Top left table

3 0

2 years ago

Read 2 more answers

A local theater charges $26 for each adult ticket and $17 for each student ticket. For one show, the theater took in $988 from a

mamaluj [8]

So what you would do is divide 988 by 26 and divide 731 by 17 and those two numbers you would add which gives you the amount of people that attended the performance

4 0

2 years ago

Read 2 more answers

Give f(x) = X2 + 3x-1, find b) f(-1)

nikklg [1K]

Answer:

-3

Step-by-step explanation:

f(x)= x²+3x-1

f(-1)= (-1)²+3(-1)-1

= 1-3-1

= -2-1

= -3

7 0

3 years ago