Answer:
(2n + k) - 7
Step-by-step explanation:
1. Let ''a number'' be presented as n
2. ''twice a number'' → 2
n
3. ''twice a number and k'' → 2n + k
4. 7 less than twice a number → (2h + k) - 7
Google it!
Answer:
41 units
Step-by-step explanation:
Rectangles have right angles, so we can use Pythagorean theorem to find the diagonal.
c² = a² + b²
c² = 9² + 40²
c² = 81 + 1600
c² = 1681
c = 41
The answer to your question is 92
It's the first one.
If you work backwords, I'd say it's easier. 3y swuared is 9y2, and 11 squared is 121. Then just keep the sign the same
