Answer:
Step-by-step explanation:
A rectangular has opposites sides of the same length
so, 10 = 2y+4
10-4=2y
6=2y
y=6/2
y =3
Answer:
25
Step-by-step explanation:
Answer: 5√2
Step-by-step explanation:
√50= √25×2= 5√2
We can break √10 into √2 • √5, and √8 into √2 • √4, or, simplifying √4 to 2, 2 • √2. Our expression now becomes
(√2 • √5) / (4 • 2 • √2)
Cancelling the √2 in the numerator and denominator gets us
√5/(4 • 2), or √5/8.
