This would be communicative property cause when solve the left side then the right they both come up to being 30=30.
Answer:
Mary's brother practiced 4 times as long.
Step-by-step explanation:
Mary practiced violin for 2 hours.
Her brother practiced trombone t times as long or 8 hours.
t times of 2 hours = 2t hours
But, 2t = 8
Divide both sides by 2.
t = 4
Hence, Mary's brother practiced 4 times as long as Mary.
1. The triangle is Isosceles and acute A (since there are two equal sides and the angles are less than 90)
2. Right triangle E (since there is a right angle)
3. The triangle is obtuse scalene T (since there are no equal sides and one angle is greater than 90)
4. Right isosceles O
5. Acute equilateral N
6. Obtuse scalene T<span />
Based on the information given the number of calls did the center make per hour is 676 per hour.
Using this formula
Number of call per hour=Number of telemarketing calls/Number of hours
Where:
Number of telemarketing calls=4,732
Number of hours=7 hours
Let plug in the formula
Number of call per hour=4,732/7 hours
Number of call per hour=676 per hours
Inconclusion the number of calls did the center make per hour is 676 per hour.
Learn more about time here:brainly.com/question/23560939
Answer:
Step-by-step explanation:
we take the LHS so here goes,
since , 
the identity becomes,
now, we know,
and 
the identity becomes,
sin A and cos A cancel out it becomes zero
Splitting the denominator the identity becomes
Hence,
