3 years ago

CAN SOMEONE PLEASE ANSWER THIUS ITS 8TH GRADE WORK

Mathematics

1 answer:

Natalka [10]3 years ago

8 0

Answer:

the lines on the second quadrilateral are also parallel too eachother

Step-by-step explanation:

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A wire is first bent into the shape of a triangle. Each side of the triangle is 24 inches long. Then the wire is unbent and resh

Natasha2012 [34]

24•3= 72 72/4=18 each side of the square is 18 inches

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2 years ago

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Find the absolute maximum and minimum values of the following function in the closed region bounded by the triangle with vertice

alukav5142 [94]

$f(x,y)=2x^2-8x+y^2-8y+2$

$f_x(x,y)=4x-8=0\implies x=2$

$f_y(x,y)=2y-8=0\implies y=4$

There is one critical point at (2, 4), but this point happens to fall on one of the boundaries of the region. We'll get to that point in a moment.

Along the boundary $x=0$ , we have

$f(0,y)=y^2-8y+2=(y-4)^2-14$

which attains a maximum value of

$f(0,4)=-14$

Along $y=44$ , we have

$f(x,44)=2x^2-8x+1586=2(x-2)^2+1578$

which attains a maximum of

$f(2,44)=1578$

Along $y=2x$ , we have

$f(x,2x)=6x^2-24x+2=6(x-2)^2-22$

which attains a maximum of

$f(2,4)=-22$

So over the given region, the absolute maximum of $f(x,y)$ is 1578 at (2, 44).

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2 years ago

Could someone explain why (-4)² is equal to 16 but -4² is equal to -16

erica [24]

Answer:

It's all about the brackets.

Step-by-step explanation:

If we do (-4)^2, the brackets make it -4 x -4 and the two negatives make a positive of 16.

If we do -4^2, that means that the 4 is squared before putting the minus sign there so you have 4x4 = 16 then put the minus to get -16.

Hope this helps!

treviglaslibrary

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2 years ago

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Joe will flip a coin 48 times. How many times can he expect to land on heads?

Semmy [17]

It could be 20 times or 25 times

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2 years ago

Three years ago, Sherman was twice as old as Clive. If Clive’s present age is c, which expression represents Sherman’s present a

iogann1982 [59]

2(c-3)=s

because you have to subtract 3 years from sherman's age first, so you need the parentheses

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3 years ago