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GenaCL600 [577]
2 years ago
12

Find –(–14). –14 –4 4 14

Mathematics
1 answer:
oksian1 [2.3K]2 years ago
5 0

Answer:

bhjtijo3

Step-by-step explanation:

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puteri [66]
You’re right, it’s just 100/25.
3 0
3 years ago
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

8 0
2 years ago
In a family there was give sons. The oldest son is 11 3/4 years old, and every next younger brother is younger than the next by
aleksklad [387]

Answer:

5.5

Step-by-step explanation:

5 0
2 years ago
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Which equation represents a population of 250 animals that decreases at an annual rate of 21%
guajiro [1.7K]

Answer:

y= 250( 1-0.21)^x

Step-by-step explanation:

This represents exponential decay

6 0
3 years ago
Verona is solving the equation -3+4x=9. In order to isolate the variable term using the subtraction property of equality, which
DENIUS [597]
B. -3
Because -3 - (-3) = 0
3 0
3 years ago
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