If √7-3√5 = √x-√y, determine the value of x and y where x>y.
1 answer:
Answer:
x = 45
y = 7
Step-by-step explanation:
To obtain the value of x and y, do the following:
√7 – 3√5
Rearrange
– 3√5 + √7
Multiply through by –1
3√5 – √7 ... (1)
Express 3√5 as a single surd
3√5 = √(3 × 3 × 5)
3√5 = √45
Replace 3√5 with √45 in equation 1
3√5 – √7
√45 – √7
Comparing
√45 – √7 and √x – √y i.e
√45 – √7 = √x – √y
x = 45
y = 7
You might be interested in
The answer is A to the first one and D to the second one
Answer:
-23
Step-by-step explanation:
The answer is A.) Length = 15, width = 9.
9x2 = 18, 18 - 3 = 15
15 x 2 = 30, 9 x 2 = 18
18 + 30 = 48.
Answer:
is you are not adding in the 24 then 40 if you are adding in the 24 then 64
Step-by-step explanation:
Answer:
40 Percent
Step-by-step explanation:
I just used a calculator.
