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3 years ago

a mischievous dog can eat 27 treats and 3 minutes how many treats can a dog eat in 8 minutes assuming he eats at the same rate

2 answers:

7 0

27 treats per 3 minutes = 9 : 1
if the ratio is 9:1, multiply by 8, and you get
72 treats per 8 minutes

you're welcome!

suter [353]3 years ago

4 0

Answer:

Step-by-step explanation:

I checked on RSM

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A sports team is selling circular patches for their fans. Each patch has a

atroni [7]

Answer: 63.59cm²

Step-by-step explanation:

The area covered by the pitch will be gotten by finding the value of the area of the circle and this will be:

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where,

π = 3.14

r = radius = diameter/2 = 9cm/2 = 4.5cm

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3 years ago

An angle is formed by two rays that share the same endpoint? True or False

Gre4nikov [31]

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Find the extreme values of the function f(x, y) = 4x2 + 6y2 on the circle x2 + y2 = 1.

julia-pushkina [17]

Answer with Step-by-step explanation:

We are given that

$f(x,y)=4x^2+6y^2$

Let g(x,y)= $x^2+y^2=1$

We have to find the extreme values of the given function

$\nabla f(x,y)$

$\nabla g(x,y)=$

Using Lagrange multipliers

$\nabla f(x,y)=\lambda \nabla g(x,y)$

$f_x=\lambda g_x$

$8x=\lambda 2x$

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If x=0 then substitute the value in g(x,y)

Then, we get $y=\pm 1$

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$12y=\lambda 2y$

If $\lambda=4$ and substitute in the equation

Then , we get possible value of y=0

When y=0 substitute in g(x,y) then we get

$x=\pm 1$

Hence, function has possible extreme values at points (0,1),(0,-1), (1,0) and (-1,0).

$f(0,1)=6$

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$f(-1,0)=4$

Therefore, the maximum value of f on the circle $x^2+y^2=1$ is $f(0,\pm1)=6$ and minimum value of $f(\pm1,0)=4$

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3 years ago

What is 820 divided by 42

Dafna11 [192]

The correct answer to 820/42= 19.52 (rounded answer would be 20). I hope I helped :)

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3 years ago

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Find the area of the triangle.

ira [324]

I think it is 67.5 is that an option?

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4 years ago

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