3 years ago

If x =root 7+root5 and y=root7-root5 find xy

Mathematics

2 answers:

kondor19780726 [428]3 years ago

6 0

final answer will be 2 because √a×√a= a

diamong [38]3 years ago

4 0

Step-by-step explanation:

x=√7+√5, y=√7-√5

therefore, xy = (√7+√5)(√7-√5) = 7-5 = 2.

Hope this helps you.

You might be interested in

At age 51 Oscar set up a 401(k) where he plans to deposit $9000 at the beginning of each year until age 75 find the amount of th

Temka [501]

Hi there
The formula of the future value of annuity due is
Fv=pmt [(1+r)^(n)-1)÷r]×(1+r)
Fv future value?
PMT payment 9000
R interest rate 0.04
N time 75−51=24 years
So
Fv=9,000×((((1+0.04)^(24)−1)
÷(0.04))×(1+0.04))
=365,813.17

It's c

Hope it helps

6 0

3 years ago

Which shows how to calculate the area of the<br> playground?

Korolek [52]

Answer:

Length (X) width

Step-by-step explanation:

7 0

3 years ago

Pls help me I’m trying my best but it’s too hard

bekas [8.4K]

Answer: