Formula:
V = 1/3 * b^2 * h
Plug in what we know:
V = 1/3 * 7^2 * 16
Simplify the exponent:
V = 1/3 * 49 * 16
Multiply all 3 numbers together:
V = 261.3cm^3
        
             
        
        
        
Answer:
The answer to your question is x = 6
Step-by-step explanation:
Equation                    5x + 3x - 6 = 42
Process
Step 1. Add 6 units in both sides
                                   5x + 3x - 6 + 6 = 42 + 6
Step 2. Simplify
                                   5x + 3x = 48
Step 3. Simplify like terms
                                          8x = 48
Step 4. Divide by 8 both sides
                                         8x/8 = 48/8
Step 5. Simplify
                                           x = 6
 
        
             
        
        
        
Answer:
24000 cm³ or 24 L
Step-by-step explanation:
The measure of a tank is 30 cm by 20 cm by 40 cm.
We need to find the volume of water in the tank when it is full.
Volum = 30 cm × 20 cm × 40 cm 
= 24000 cm³
1 cm³ = 1 ml
24000 cm³ = 24000 mL
Also, 1 cm³ = 0.001 ml
24000 cm³ = 24 L
Hence, this is the required solution.