3 years ago

Which expression is equivalent to the following? 21x - 15

Mathematics

1 answer:

guajiro [1.7K]3 years ago

7 0

Answer:

3(7x-5)

Step-by-step explanation:

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Complete the table for all the lengths and widths that are missing for

Sveta_85 [38]

Answer:

Step-by-step explanation:

x is 1,2,3,4,5

y is 14,13,12,11,10

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3 years ago

Consider the vector field f(x,y,z)=(2z+3y)i+(3z+3x)j+(3y+2x)kf(x,y,z)=(2z+3y)i+(3z+3x)j+(3y+2x)k.

natima [27]

$\dfrac{\partial f}{\partial x}=2z+3y\implies f(x,y,z)=2xz+3xy+g(y,z)$

$\dfrac{\partial f}{\partial y}=3x+\dfrac{\partial g}{\partial y}=3z+3x$
$\dfrac{\partial g}{\partial y}=3z\implies g(y,z)=3yz+h(z)$
$\implies f(x,y,z)=3xz+3xy+3yz+h(z)$

$\dfrac{\partial f}{\partial z}=3x+3y+\dfrac{\mathrm dh}{\mathrm dz}=3y+2x$
$\dfrac{\mathrm dh}{\mathrm dz}=-x$

But we assume $h$ is a function of $z$ alone, so there is no solution for $h$ and hence no scalar function $f$ such that $\nabla f=\mathbf f$ .

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3 years ago

Who procrastinates to study✋

IrinaK [193]

Hi There! :)

<span>Who procrastinates to study

ME!!!!</span>

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3 years ago

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Jet001 [13]

Attachment picture is the solution. Please mark me brain if you think it help. Thank you!

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2 years ago

The hypotenuse of a right triangle measures 6cm and one of its legs measures 3cm.Find the measure of the other leg. If necessary

belka [17]

Answer:

5.2

Step-by-step explanation:

a^2+b^2=c^2

Where c is the length of hypotenuse

and a, b are lengths of the legs.

Put in 6 for c,

Put in 3 for a and you get 9+b^2=36

Subtract 9 from both sides and get b^2= 27

Then find the square root of both sides to get b, so the answer is the square root of 27.

The cloest square root is 5, then apporixmate the tenths value and see if they work.

Answer: 5.2

8 0

2 years ago

Read 2 more answers