Amailing tube in the shape of a cylinder has
a height of 24 inches and a radius of 3 inches.
what is the volume, in cubic inches, of the
mailing tube? (use 3.14 for m.)

V≈678.58 in^3

Step-by-step explanation:

1) Given variables

h = 24 inches, r = 3 inches

2) Plug it into the cylinder formula

V=πr^2h

V=π(3 in)^2(24 in)

V=216π or 678.58 in^3

678.24 inch³

Step-by-step explanation:

Given that the volume of a cylinder is πr²h.

V= πr²h

V = 3.14 X 3² X 24

V = 3.14 X 9 X 24

V = 678.24 inch³

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m