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adelina 88 [10]
3 years ago
6

All of the following expressions have the same value, when x = -2 and y = 4, except _____.

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0
I think the answer is c
irinina [24]3 years ago
4 0

Answer:

C

Step-by-step explanation:

When plugged in it is -4(-2)² which equals -16 while the others equal 16

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What is the approximate area of the circle shown below?<br> ???? Help ???
PIT_PIT [208]

Answer:

D. 1662 cm

Step-by-step explanation:

A=πr2=π•23≈1661.90251cm²

which is 1661.9

but of course you have to round up for 1662 cm :)

7 0
3 years ago
HElP!
zheka24 [161]

Answer:

A- The cabinets have the same base area.

C- The cabinets may have the same base dimensions.

D- The cabinets may have different base dimensions

Step-by-step explanation:

4 0
3 years ago
Suppose z equals f (x comma y ), where x (u comma v )space equals space 2 u plus space v squared, y (u comma v )space equals spa
barxatty [35]

z=f(x(u,v),y(u,v)),\begin{cases}x(u,v)=2u+v^2\\y(u,v)=3u-v\end{cases}

We're given that f_x(6,1)=3 and f_y(6,1)=-1, and want to find \frac{\partial z}{\partial v}(1,2).

By the chain rule, we have

\dfrac{\partial z}{\partial v}=\dfrac{\partial z}{\partial x}\dfrac{\partial x}{\partial v}+\dfrac{\partial z}{\partial y}\dfrac{\partial y}{\partial v}

and

\dfrac{\partial x}{\partial v}=2v

\dfrac{\partial y}{\partial v}=-1

Then

\dfrac{\partial z}{\partial v}(1,2)=\dfrac{\partial z}{\partial x}(6,1)\dfrac{\partial x}{\partial v}(1,2)+\dfrac{\partial z}{\partial y}(6,1)\dfrac{\partial y}{\partial v}(1,2)

(because the point (x,y)=(6,1) corresponds to (u,v)=(1,2))

\implies\dfrac{\partial z}{\partial v}(1,2)=3\cdot2\cdot2+(-1)\cdot(-1)=\boxed{13}

4 0
3 years ago
Help please and thank you
marysya [2.9K]

Answer:

Step-by-step explanation:

4/5

1/2

8 0
2 years ago
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Classify the expression as a monomial, a binomial, a trinomial, or not a polynomial. 2b^3 − 8s^4 + 6z
Nadusha1986 [10]

Answer:

Trinomial

Step-by-step explanation:

Because it is broken up in three terms and trinomial means three terms

4 0
3 years ago
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