Answer:
(5x + 7y)² = 25x² + 70xy + 49y²
Step-by-step explanation:
(5x + 7y)² = 25x² + 70xy + 49y²
Because,
(5x + b)² = (5x)² + 2(5x)(b) + b²
2(5x)(b) = 70xy
b = 7y
b² = (7y)² = 49y²
Answer:
<h2>
X = 3</h2>
Step-by-step explanation:
Move constant to R.H.S and change its sign:
Calculate the difference
Hope this helps...
Good luck on your assignment..
Given:
Nora has a day off every 4 day while Amirah has day off every 6 days .
Nora last day off was on 29 april while Amirah was on 1 may.
To find:
When they have same day off.
Solution:
Nora last day off was on 29 april and she has a day off every 4 day.
So, her off days are
29 april, 3 may, 7 may, 11 may, 14 may, ...
Amirah last day off was on 1 may and she has day off every 6 days .
So, her off days are
1 may, 7 may, 13 may, ...
From the above two lists of off days, it is clear that they have same day off on 7 may.
Answer: 1 fourth
Step-by-step explanation:
7 - 17x - 5 - 4x = 5
7 - 21x - 5 = 5
2 - 21x = 5
-2 -2
---------------
- 21x = 3
----------
- 21
----------
- 3/21
=
- 1/7
The answer will be 16 because you multiply then add
