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Tcecarenko [31]
3 years ago
6

HALP ME PLEASE VERY IMPORTANT ASSIGNMENT!!!

Mathematics
2 answers:
erastova [34]3 years ago
5 0

Answer:

4.84

Step-by-step explanation:

german3 years ago
3 0

Answer:

wut?

Step-by-step explanation:

i dont know how to explain this

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the surface area of a prism is 208 cm2. two of the dimensions are 2 cm and 10 cm. find the measure of the other dimensions
Nataliya [291]
10.4 mutiply 10 and  2 then divide 208/20
8 0
3 years ago
A rectangle initially has dimensions 6 cm by 7 cm. All sides begin increasing in length at a rate of 1 cm/s. At what rate is the
Morgarella [4.7K]

Answer:

  49 cm²/s

Step-by-step explanation:

The problem statement tells you what to do.

Write an equation relating A, b, h:

  A = bh . . . . . . the equation for the area of a rectangle

Differentiate with respect to t:

  dA/dt = (db/dt)h + b(dh/dt) . . . . . . . product rule

To find the rate of change after 18 seconds, you need to know the dimensions b and h after 18 seconds. Since each dimension was increasing at the rate of 1 cm/s, it is 18 cm more than it was at the beginning:

At 18 seconds,

  b = 6 cm + 18 cm = 24 cm;

  h = 7 cm + 18 cm = 25 cm.

Of course, db/dt = dh/dt = 1 cm/s. Then the rate of change of area is ...

  dA/dt = (1 cm/s)(25 cm) + (24 cm)(1 cm/s)

  dA/dt = 49 cm²/s

_____

You could write a formula for the area as a function of time and differentiate that:

  A = (6 +t)(7 +t) = 42 + 13t + t²

Then the derivative is ...

  dA/dt = 13 +2t

and when t=18, this is ...

  dA/dt = 13 + 2(18) = 49 . . . . cm²/s

7 0
3 years ago
I really need help please!
miskamm [114]
Simple...

you have: \frac{ 3^{-4}* 2^{3}* 3^{2}   }{ 2^{4}* 3^{-3}  }

Multiply it out-->>

\frac{8}{9}÷\frac{16}{27}

=\frac{3}{2} (A)

Thus, your answer. 
5 0
3 years ago
HELP HELP PLEASE!!!! D: WHICH TRIANGLES ARE SIMILAR TO TRIANGLE ABC?
Andreas93 [3]

Answer:

HGI

Step-by-step explanation:

i hope this helps ^^"""

nvm-its wrong TvT

8 0
2 years ago
2. En un concierto hay 432 personas. Si sabemos que hay 48 mujeres más que hombres,
Tomtit [17]
M = 48+x
h=x
x+48+x = 432
2x +48= 432
x=192
mujeres =240
hombres= 192
6 0
3 years ago
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