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ivolga24 [154]
3 years ago
8

How many 3/9’s are in 2

Mathematics
1 answer:
gtnhenbr [62]3 years ago
7 0

Answer: they are 3

Step-by-step explanation:

3x3x3

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A melting spherical block of ice has its surface area changing at the rate of 24 inch2 /sec at the time the radius is 3 inches.
emmainna [20.7K]
The surface area of the sphere is:
 A = 4 * pi * r ^ 2
 Deriving we have:
 A '= 8 * pi * r * r'
 We clear the speed:
 r '= A' / (8 * pi * r)
 Substituting values:
 r '= 24 / (8 * pi * 3)
 r '= 1 / pi inch / sec
 Then, the volume of the sphere is:
 V = (4/3) * (pi) * (r ^ 3)
 Deriving we have:
 V '= (3) * (4/3) * (pi) * (r ^ 2) * (r')
 Substituting values:
 V '= (3) * (4/3) * (pi) * (3 ^ 2) * (1 / pi)
 Rewriting:
 V '= (4) * (9)
 V '= 36 inch3 / sec
 Answer:
 
the volume of the ice is changing at 36 inch3 / sec at that moment
4 0
3 years ago
What is the inverse of the given relation? y= 4x-8
andrew-mc [135]

to inverse a equation make all y's x and andy x's y


Thus the inverse is

x=4y-8


Evaluated to

4y=x+8

y=  \frac{1}{4}x +2

4 0
3 years ago
The path of a race will be drawn on a coordinate grid like the one shown below. The starting point of the race will be at (−5.3,
DochEvi [55]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the answer? im trying to figure it out and its hurting my head
Naya [18.7K]
7x-99=2x+1
5x=100
x=20

mark me brainliest if the answer is correct, thank you in advance :)
3 0
3 years ago
What value of coefficient b makes the equation true for any real number x?<br> 3(2x - 3)+ 5 = bx +9
Natali [406]

Answer:

x=58

Step-by-step explanation:

5 0
3 years ago
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