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NNADVOKAT [17]
3 years ago
8

PLEASE HELP ME I NEED AN ANSWER!!!!! I WILL MAKE U A BRAINIEST. PLZZZ 

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
8 0
I think B tell me if I'm wrong plz
scoundrel [369]3 years ago
6 0

Answer:

It's B. it has an average of 5, the chart has 4.5, all others are less.

Step-by-step explanation:

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(1/3)y2 + 12 = 5x where x = 3
IgorLugansk [536]
If x=3
(1/3)y2+12=15
(1/3)y2=15-12
(1/3)y2=3
y2=3*3
y2=9
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What is this 5/8 × 1/2
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The answer is 5/16 you're welcome
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Find the value of x to the nearest tenth.
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A rectangular swimming pool is 15 meters long, 10 1/2
daser333 [38]
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the volume of a cube is increasing at a constant rate of 824 cubic centimeters per minute. At the instant when the volume of the
Maurinko [17]

Answer:

DA/dt  = 75.27 cm²

Step-by-step explanation:

Cube Volume    =   V(c)   =  683  cm³

DV(c) /dt    =  824 cm³

V(c,x) = x³    

Then

DV(c,x)/ dt   =  3x² Dx/dt

( DV(c,x)/ dt )/ 3x²  =  Dx/dt       (1)

Now  as  V(c,x) = x³    when    V(c,x)  =  683 cm³     x = ∛683

x  =  8.806     ( from excel)

And by subtitution of this value in equation (1)

Dx/dt   =  ( DV(c,x)/ dt )/ 3x²   ⇒  Dx/dt  =  824 / 3*x²

  Dx/dt   = 824 /3*77.55

Dx/dt   =  824/232,64

Dx/dt   = 3,542

Then we got  Dx/dt  where x is cube edge. The area of the face is x² then

the rate of change of the suface area is  

DA/dt  = ( Dx/dt )²*6         ( 6 faces of a cube)

DA/dt  = (3.542)²*6

DA/dt  = 75.27 cm²

6 0
3 years ago
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