Answer:
Step-by-step explanation:
1 = (20 x 70) + (70 x 20) = 1400 x 2 = 2800 squared meters
2 = 9.18 x 2 = 18.36 + 9.72 = 28.08 squared centimeters
3 = 9 x 4 = 36 + 6 + 3 = 45 squared units
Answer:
x=5
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
2^ 2 x 3^2 x 7
use the product tree
Answer:
27
Step-by-step explanation:
Let the number to find out be 'x'
Therefore,
according to the condition given question, we get the equation as

Now,
squaring both the sides, we get
2x - 5 = 49
on adding 5 both sides, we get
2x - 5 + 5 = 49 + 5
or
2x = 54
or
x =
or
x = 27
Hence, the number is 27