9 × 9 = 81
9 plus itself 9 times equals 81
the nines table goes 9,18,27,36,45,54,63,72,81,90
To check the two numbers add up to 9 for 1-10 multiples
Algebra would be m × m =m^2
^means to the power and the 2 means we are doing it to the power of two [Also known as squaring]
This works because they are both the same number
The answer will be $29.9K
The answer to that is 774
If you would like to know the mass of the kettle when it is empty, you can calculate this using the following steps:
2900 grams - 2050 grams = 850 grams (half of water)
2050 grams - 850 grams = 1200 grams (no water)
The correct result would be 1200 grams.
Step-by-step explanation:
½ [cos(a − b) − cos(a + b)]
Using sum and difference formulas:
½ [cos a cos b + sin a sin b − (cos a cos b − sin a sin b)]
Distribute the negative:
½ (cos a cos b + sin a sin b − cos a cos b + sin a sin b)
Combine like terms:
½ (2 sin a sin b)
Simplify:
sin a sin b
