2 years ago

What are the domain and range of the function (x)=-^x+3 - 2?

Mathematics

1 answer:

Evgesh-ka [11]2 years ago

3 0

Answer:

pingus

Step-by-step explanation:

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Wgich value is closest to 85% of 25..is it20,16,18, or 22

olya-2409 [2.1K]

Well 85% of 25 is 21.25. So the closest ones would be 20 or 22. Well let's check out the difference's. 21.25-20= 1.25.....22-21.25=.75. well clearly .75 is smaller than 1.25 so your answer would be 22. 85% of 25 is closest to 22.

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3 years ago

What is the square root of 1152?

Alex787 [66]

The square root is <span>33.941125497

</span>

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3 years ago

What does it mean when a forst grade mathmatic paper says group 1 with flowers and group2 has flower it says make the rule what

Aleks [24]

If it's like the in and out things, I think i can help. So a number goes in and and comes out. What is the rule? What happened from the in to the out?

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3 years ago

Find the extreme values of f(x y)=xy subject to the constraint x^2 + y^2 -4 = 0

KATRIN_1 [288]

Via Lagrange multipliers:

$L(x,y,\lambda)=xy+\lambda(x^2+y^2-4)$

$L_x=y+2\lambda x=0$
$L_y=x+2\lambda y=0$
$L_\lambda=x^2+y^2-4=0$

$yL_x=y^2+2\lambda xy=0$
$xL_y=x^2+2\lambda xy=0$
$\implies yL_x-xL_y=y^2-x^2=0\implies y^2=x^2$
$\implies x^2+y^2=4=2x^2\implies x^2=2\implies x=\pm\sqrt2\implies y=\pm\sqrt2$

So we have four critical points to consider, $(\sqrt2,\sqrt2),(-\sqrt2,\sqrt2),(\sqrt2,-\sqrt2),(-\sqrt2,-\sqrt2)$ . If both coordinates are positive or both are negative, we get a maximum value of $(\pm\sqrt2)^2=2$ ; otherwise, we get a minimum of $(-\sqrt2)(\sqrt2)=-2$ .

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3 years ago

Mr. Jackson orders lunches to be delivered to his workplace for himself and some

svetlana [45]

Answer: $34.75

Step-by-step explanation:

n= 6.25x+3.50

n=6.25(5)+3.50

n=31.25+3.50

n=34.75

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4 years ago