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navik [9.2K]
3 years ago
14

What is a possible value for the missing term of the geometric sequence 1250 ___ 50

Mathematics
1 answer:
jeka57 [31]3 years ago
4 0
<h2>The possible value for the missing term of the geometric sequence = 250</h2>

Step-by-step explanation:

The given  geometric sequence:

1250, _______ ,50

Let x be the possible the missing term.

To find, the possible value for the missing term of the geometric sequence = ?

1250, x , 50

Here, first term(a_{1}) = 1250, second term(a_{2}) = x and

third term(a_{3}) = x

We know that,

∴ Common ratio (r) = \dfrac{a_{2}}{a_{1}} =\dfrac{a_{3}}{a_{2}}

\dfrac{x}{1250} =\dfrac{50}{x}

⇒ x × x = 50 × 1250

⇒ x^{2} = 62500

⇒ x = \sqrt{62500}

⇒ x = 250

∴ The possible value for the missing term of the geometric sequence = 250

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A spherical exercise ball has a maximum diameter of 30 inches when filled with air. The ball was completely empty at the start,
Alex73 [517]

Answer:

A) A(t)  =  4500*π  -  1600*t

B) A(4)  =  7730 in³

C) t  =  8,8 sec

Step-by-step explanation:

The volume of the sphere is:

d max  =  30   r max  =  15 in

V(s) =  (4/3)*π*r³      V(s)  =   (4/3)*π* (15)³

V(s) = 4500*π

A)  Amount of air needed to fill the ball A(t)

A(t)  = Total max. volume of the sphere - rate of flux of air * time

A(t)  =  4500*π  -  1600*t    in³

B) After 4 minutes

A(4)  =  4500*π  - 6400

A(4)  =  14130 - 6400

A(4)  =  7730 in³

C)  A(t)  =  4500*π  -  1600*t  

when  A(t) = 0   the ball got its maximum volume then:

4500*π -  1600*t  =  0

t  =   14130/1600

t  =  8,8 sec

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If y=5x - 2 were changed to y=3/4 x- 2, how would the graph of the new function compare with the first one?
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