First, you can factor out 625 using the 'tree' method or the 'ladder' method.
625
/ \
5 125
/ \
5 25
/ \
5 5
This means you can say that 625=5 to the power of 4
If your problem requires you to use only whole integers with exponents, then that would be the only way.
If not, then you can also do 625=25*5²
Expand the binomial:
(√2/5 + 5/2 <em>i</em> )² = (√2/5)² + 2<em>i</em> (√2/5) (5/2) + (5/2 <em>i</em> )²
… = 2/25 + √2 <em>i</em> + 25/4 <em>i</em> ²
… = -617/100 + √2 <em>i</em>
Number 1 is 1. Because it's a number pattern 10-3=7.Then 7-3=4.Finally 4-3=1.
Answer:
x=4, y=1
Step-by-step explanation:
We can solve this set of equations using elimination.
Multiply the first equation by 3:
Multiply the second equation by 5:
Now we take
Therefore, .
To solve for x, substitute y=1 into the second equation.
Hence, .
Answer:250 litres i believe
Step-by-step explanation: