The surface area of a cube is 294 cm2. Which statements are true about the same cube measured in square millimeters? Choose all answers that are correct. A. The number representing the surface area would decrease. B. The number representing the surface area would increase. C. The actual surface area would decrease. D. The actual surface area would increase. E. The actual surface area would stay the same.

Answers

Answer 1
Answer: To check whether the statements are correct, we need to convert cm to mm.

surface area of a cube = 6 a²
294 cm² = 6 a²
294 cm² / 6 = a²
49 cm² = a²
√49 cm² = √a²
7cm = a

1 cm = 10 mm
7 cm = 70 mm

Surface area of a cube = 6a²
= 6 * (70mm)² = 6 * 4,900mm² = 29,400mm²

B. The number representing the surface area would increase.
E. The actual surface area would stay the same.

Related Questions

Consider the decimal 0.101001000100001000001 do you think this decimal represents a rational number? Why or why not.
The length of the hypotenuse of a right triangle is 15 in. and one leg has length of 6 in. Find the length of the other leg.A. 9 in.B. 12 in.C. square root 189 in.D. square root 261 in
Please help!!!!!! (fill the blank)Part 2: Find the volume of the shipping box using the total number of fish food cubes.Step 1: Find the volume of the fish food cube. Remember to include units.Volume of the fish food cube = _____ × _____ × _____ = __________
Which expressions are equivalent to the one below. Check all that apply. 49^x
(someone help please!) Can some please help answer this, please! Tysm if u do

29-3p+3=5(3p-8). 4(x+6)-7=x+35

Answers

If these are two separate questions then this is how you do it:
First the left one
29 - 3p + 3 = 5(3p - 8)
32 - 3p = 15p - 40
72 = 18p
72/18 = p
p = 4

Now the right one
4(x + 6) - 7 = x + 35
4x + 24 - 7 = x + 35
4x + 17 = x + 35
3x = 18
x = 6

Hope this helped you =)
P=11/3

Original:
29-3p+3=5(3p-8)

STEPS:
29-3p+3=15p-40
29-3p=15p-37
29=18p-37
66=18p
(66=18p) / 18/18
P=11/3 or 3 2/3

X=6

ORIGINAL:
4(x+6)-7=x+35

STEPS:
4x+24-7=x+35
4x+24=x+42
4x=x+18
3x=18
/ 3/3

If each number were multiplied by four, their sum would be 172. What are the two numbers?

Answers

There are a lot of choices for the two numbers; this is because no other condition has been placed on the numbers to pinpoint the exact numbers required.

x = 1st number
y = 2nd number

The equation would be:  
4(x+y) = 172

4(x+y)/4 = 172/4
x + y = 43

If we get the value of x. then, x = 43 - y
Substitute x by its value

43 -y + y = 43
43 = 43
y = 0 

If y = 0 then x = 43 to get the sum of 43
 
  x       y      x + y      4x        4y        4x + 4y
43       0      43         172       -          172
42       1       43         168       4         172
41       2      43         164       8         172
40       3      43         160     12         172              
39       
4       43         156     16         172
             
38       
5      43         152     20         172
             
37       
6      43         148     24         172
             
36       
7      43         144     28         172
             
35       
8      43         140     32         172
             
34       
9      43         136     36         172
             
33     
10      43         132     40         172
           
32     
11      43         128     44         172
        
31     
12      43         124     48         172
     
30     
13      43         120     52         172
  
29    
14      43         116     56         172
    
28     
15      43         112     60         172
      
27     
16      43         108     64         172
        
26     
17      43         104     68         172
      
25     
18      43         100     72         172
             
24     19      43           96     76         172
           
23     
20      43           92     80         172
      
22     
21      43           88     84         172

What is the column of a sphere with a radius of 9 inches

Answers

I hope this helps. Use the formula: 4•3.14 (pi) •9 squared

Elizabeth has a piece of ribbon that is 4.5 meters long she wants to cut it into pieces that Are 0.25 meters long how many pieces of ribbon will she have

Answers

4.5 divided by 0.25 is 18 so she will have 18 pieces.

Through which process is fertile soil renewed

Answers

Answer:

The process through which the fertile soil is renewed is called soil fertility.

Step-by-step explanation:

Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality.

A fertile soil has the following properties :

  • The ability to supply essential plant nutrients and water in sufficient amounts which increase productivity.
  • The absence of toxic substances which may inhibit plant growth.

The following properties contribute to soil fertility in most situations:

  • Sufficient soil depth for adequate root growth and water retention;
  • Good internal drainage, allowing sufficient aeration for optimal root growth .

Hence, The process through which the fertile soil is renewed is called soil fertility.

Soil Fertility is the answer and there really is no explanation to this except it gives life back to soil that was once fertilized.

shelby needs to water each of her 3 plants woth 200 milliliters of water. How many milliliters of water does she need?

Answers

the correct answer is 600 mL