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Maksim231197 [3]
3 years ago
11

Right answer gets brainlist

Mathematics
1 answer:
elena55 [62]3 years ago
4 0

Answer:

546

Step-by-step explanation:

Surface Area = 2(lw + lh + wh)

plug in 21 10.5 and 2.5

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Please answer CORRECTLY !!!!!!!!! Will mark brainliest !!!!!!!!!!
Orlov [11]
-4x -6 = -5y + 2
5y = 4x + 6 + 2
5y = 4x + 8
Y = g(x) = 4/5x + 8/5
7 0
4 years ago
Can someone please help
Harrizon [31]

Answer:

31,41,51,71

Step-by-step explanation:

8 0
2 years ago
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Which is the larger value: 2x10^6 or 9x10^5? explain how you know
laila [671]
Hey there!

Here is your answer:

<u><em>The proper answer to this question is "2×10^6".</em></u>

Reason:

<u><em>Translate these equations in standard from:</em></u>

<u><em>2×10^6=2,000,000 </em></u>
<u><em>9×10^5=900,000</em></u>

<u><em>2,000,000≥900,000</em></u>

<em>Therefore 2×</em><span><em>10^6 is greater!</em>

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit</span>
5 0
4 years ago
Find the directional derivative of f(x,y,z)=z3−x2yf(x,y,z)=z3−x2y at the point (−5,5,2)(−5,5,2) in the direction of the vector v
olga_2 [115]

We are given

f=z^3 -x^2y

Firstly, we can find gradient

so, we will find partial derivatives

f_x=0 -2xy

f_x=-2xy

f_y=0 -x^2

f_y=-x^2

f_z=3z^2

now, we can plug point (-5,5,2)

f_x=-2*-5*5=50

f_y=-(-5)^2=-25

f_z=3(2)^2=12

so, gradient will be

gradf=(50,-25,12)

now, we are given that

it is in direction of v=⟨−3,2,−4⟩

so, we will find it's unit vector

|v|=\sqrt{(-3)^2+(2)^2+(-4)^2}

|v|=\sqrt{29}

now, we can find unit vector

v'=(\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

now, we can find dot product to find direction of the vector

dir=(gradf) \cdot (v')

now, we can plug values

dir=(50,-25,12) \cdot (\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

dir=(-\frac{150}{\sqrt{29} } - \frac{50}{\sqrt{29} } - \frac{48}{\sqrt{29} })

dir=-\frac{248\sqrt{29}}{29}.............Answer



7 0
4 years ago
Read 2 more answers
7*7=? plz help me explain
Elina [12.6K]
Try the square root of 49 and u will get seven. 7*7=49. XD
4 0
3 years ago
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