3 years ago

What is the surface area of the outside of a cube shaped closed-top water tank whose edge length is 7.2ft ?

2 answers:

7 0

The surface area of the cube is 311.04 $ft^{2}$ . One Face of the cube is 51.84 $ft^{2}$ and there are six faces so 51.84 x 6 = 311.04.

5 0

The surface area is 311.04 square feet.

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Sergio039 [100]

Yes, it is 120 degrees

5 0

3 years ago

iVinArrow [24]

the answer is x1= -1 , x2= 5

8 0

3 years ago

QveST [7]

Answer:

Step-by-step explanation:

The recommended daily intake of a nutrients supplement for a certain age group is 800 mg per day.

Actully supplements needs vary from person to person plus or minus 50 mg.

This means the minimum value is 800 - 50 = 750 mg per day and the maximum value is 800 + 50 = 850 mg per day.

Let x mg be a possible daily amount of nutrients supplement. Then

$750\le x\le 850$

Subtract 800:

$750-800\le x-800\le 850-800\\ \\-50\le x-800\le 50$

This inequality can be rewritten using absolute value notation as

$|x-800|\le 50$

3 0

4 years ago

Anton [14]

$C= \pi d \\ 
C=9 \pi \\
C=28.26 in$

3 0

3 years ago

katen-ka-za [31]

3 x $37.25 = $111.75
$229.25 - $111.75 = $117.50
$117.50 ÷ 5 = $23.50
So the answer is B

6 0

3 years ago