Answer:it’s 10
Step-by-step explanation:
That’s it it’s just 10 be smart
The main floor has 26 rows of 29 seats each, that is 26*29 = 754 seats
And in the balcony there is 8 rolls of 23 seats, that is 8*23 = 184 seats
So the difference is 754 - 184 = 570
Then the main floor has 570 seat more than the balcony
They added it wrong. They added it like this:
When it shouldve been this:
They just added a place marker in all numbers below 100.
No, it is not a solution, as 15 is not less-than fifteen.<span />
6. Expand the left side:
Recall the Pythagorean identity,
which leaves us with
Recall the angle sum formula for cosine:
which gets us to where we need to be:
and we're done.
7. A. The formulas you need are
This gives
7. B. Solving for gives
which holds for
where is any integer.
7. C. Factorize as
From here, we have
which hold for
where is any integer.