3 years ago

–2(3a − 2b) I just need that answer dude man

Mathematics

2 answers:

SOVA2 [1]3 years ago

7 0

Answer:

-6a+-4b

Step-by-step explanation:

larisa [96]3 years ago

3 0

The answer is -6a+4b

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Help please 20 points.

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Answer:

1,600 ft³

Step-by-step explanation:

10*20 divided by 2 = 100

100 * 16 equals 1,600 ft³

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2 years ago

Evaluate the expression for the given values.

kow [346]

The answer is 3 because you multiply 5 and 1 which is 5 and you subtract 2 from the 5 which leaves you with 3.

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2 years ago

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Consider F and C below. F(x, y) = x4y5i + x5y4j, C: r(t) = t3 − 2t, t3 + 2t , 0 ≤ t ≤ 1 (a) Find a function f such that F = ∇f.

vovikov84 [41]

$\mathbf f(x,y)=x^4y^5\,\mathbf i+x^5y^4\,\mathbf j$

We want a scalar function $f(x,y)$ whose gradient is equivalent to the vector field. That means

$\dfrac{\partial f}{\partial x}=x^4y^5\implies f(x,y)=\dfrac{x^5y^5}5+g(y)$
$\dfrac{\partial f}{\partial y}=x^5y^4\implies x^5y^4=x^5y^4+\dfrac{\mathrm dg}{\mathrm dy}$
$\implies\dfrac{\mathrm dg}{\mathrm dy}=0\implies g(y)=C$

So (a)

$f(x,y)=\dfrac{x^5y^5}5+C$

which means (b)

$\displaystyle\int_{\mathcal C}\mathbf f\cdot\mathrm d\mathbf r=f(\mathbf r(1))-f(\mathbf r(0))=f(-1,3)-f(0,0)=-\dfrac{243}5-0=-\dfrac{243}5$

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2 years ago

When solving a word problem, what step should you always do after reading the problem, but prior to writing the equation?

Hoochie [10]

Properly identifying and assigning the proper variables to each part of the problem before attempting to solve it

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3 years ago

Which are shown on the diagram? Check all that apply.

defon

Answer:

i think b,c,d and f

Step-by-step explanation:

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2 years ago