Answer: Metal A is 3 times faster than Metal B.
Step-by-step explanation:
Since we have given that
Time taken to oxidised metal A = 
Time taken to oxidised metal B =
seconds
So, ratio of metal A to metal B would be

So, Ratio of Metal A to Metal B is 1 : 3.
Hence, Metal A is 3 times faster than Metal B.
5. 14 squared centimeters
6. 31 7/8 squared inches
7. 936 squared inches
8. 125 squared centimeters
9. 72 squared meters
10. 336 squared meters
11. 8.25 squared feet
12. 187.5 squared inches
13. 1,620 squared inches
14. 300 squared feet; trapezoid's equation was (10+18)6/2. For the rectangle, equation was 18x12. Add the answers together to get 300.
I hope this helped! :)
Step-by-step explanation:
<h3>
6.) 80x²y</h3>
Prime factors of :
• 80 = 2 × 2 × 2 × 2 × 5
• x² = x × x
• y = y
• 80x²y = <u>2 × 2 × 2 × 2 × 5 × x × x × y</u>
<h3>
7.) 56x³y²</h3>
Prime factors of :
• 56 = 2 × 2 × 2 × 7
• x³ = x × x × x
• y² = y × y × y
• 56x³y² = <u>2 × 2 × 2 × 7 × x × x × x × y × y</u>
<h3>
8.) 81xy²</h3>
Prime factors of :
• 81 = 3 × 3 × 3 × 3
• x = x
• y² = y × y
• 81xy² = <u>3</u><u> </u><u>×</u><u> </u><u>3</u><u> </u><u>×</u><u> </u><u>3</u><u> </u><u>×</u><u> </u><u>3</u><u> </u><u>×</u><u> </u><u>x </u><u>×</u><u> </u><u>y </u><u>×</u><u> </u><u>y</u>
#CMIIW ^^
-18 is the answer bebe :)