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Arada [10]
3 years ago
11

I need right answers

Mathematics
2 answers:
IrinaK [193]3 years ago
7 0

Answer:-180

Step-by-step explanation:

mihalych1998 [28]3 years ago
3 0

Answer:

<h2>-180</h2>

<h2>this is a right answer</h2>
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Gregory’s backpack weighs 3 pounds less than Cali’s backpack. Cali’s backpack weighs 14 pounds. How much does Gregory’s backpack
Anna [14]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
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Consider the vector field ????(x,y,z)=(5z+y)????+(4z+x)????+(4y+5x)????.
Fynjy0 [20]

Answer:

a) 5xz + xy + 4yz

b) 10

Step-by-step explanation:

a) Here F(x,y,z)=(5z+y)i+(4z+x)j+(4y+5x)k

Since the case F  =  ∇f holds, then

∇f = f_xi+f_yj+f_zk = (5z+y)i+(4z+x)j+(4y+5x)k

So, f_x = 5z + y

If we integrate f_x with respect to x, we will get an integration constant C which is also a function that depends to y and z.

Hence,

f = \int f_xdx = 5xz + xy + g(y,z)

Now we need to find g(y,z).

So first let's take the derivative of g(y,z) with respect to y.

f_y = x + g_y(y,z) = 4z + x

Hence, g_y(y,z) = 4z

So now, if we integrate g_y with respect to y to find g(y,z)

g = \int g_ydy = 4yz + C

Thus,

f = 5xz + xy + g(y,z) = 5xz + xy + 4yz + C

And since f(0,0,0)=0, then C=0

Thus,

f = f(x,y,z) = 5xz + xy + 4yz

b) By the Fundamental Theorem of Line Integrals, we know that

\int\limits^a_b F. dr = F[r(b)]-F[r(a)]

Hence,

\int\limits^a_b F. dr = F(1,1,1)-F(0,0,0) =[(5+1+4)-(0+0+0)]=10

8 0
3 years ago
Which of the following has infinitely many solutions
nevsk [136]

Answer:

D

Step-by-step explanation:

When the equation equals itself on both sides, you have an infinite solutions.

So we just go through each of the choices.

So D works because it has 0=0

6 0
3 years ago
Read 2 more answers
Help me please <br> I don’t understand this
MrRissso [65]

Answer:

I don't know man

Step-by-step explanation:

5 0
3 years ago
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Mr. Rao's gas tank holds up to 17 1/8gallons of gas. It took 12.65 gallons of gas to fill his tank. How many gallons of gas did
viva [34]
<h3>Answer: 4.475 gallons</h3>

Work Shown:

17 & 1/8 = 17 + 1/8 = 17 + 0.125 = 17.125

17.125 - 12.65 = 4.475

5 0
3 years ago
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