5. A 175 mL sample of neon had its pressure changed from 75 kPa to 150 kPa. What is its new volume?

The new volume of the neon is:

V

2

=

87.5

m

L

Explanation:

Boyle's law states that pressure is inversely proportional to volume for a fixed quantity of an ideal gas at a constant temperature.

The mathematical formula is :

V

2

=

P

1

V

1

P

2

Here we have:

P

1

=

75

K

P

a

;

P

2

=

150

K

P

a

;

V

1

=

175

m

L

Then:

V

2

=

75

K

P

a

⋅

175

m

L

150

K

P

a

V

2

=

75

K

P

a

1

⋅

175

m

L

150

K

P

a

2

V

2

=

87.5

m

L

Step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation: