Answer:
(3/5)(3/4)= 9/20 is the answer
numerator: (3×3)=9
denominator:(5×4)= 20
therefore 9/20
Answer:
a. Only 68% of the students will fall in the range of 10- 2 and 10 + 2 hours.
Step-by-step explanation:
He appies the empirical 68-95-99.7 rule, where 68% of the data is expected to be within ne standard deviation from the mean, to the right and to the left.
Half of this (68%/2=34%) will be between the mean and one deviation standard to the right. This is between 10 hours and 10+2=12 hours.
The right answer is:
a. Only 68% of the students will fall in the range of 10- 2 and 10 + 2 hours.
PR : RC = PQ : AC
so,
PQ = 2.8 inches
Hope this helps
The answer is b because d represents how many days he practices
Since August is the 8th month of the year, this means Kelli has called her grandmother 8 times so far since she calls her once a month
Since she calls her cousin every other month, Kelli has called her cousin 4 times so far because if she calls from January to August every other month, you would do 8÷2 because every other month = 2 months.
This means Kelli has called her grandmother 8 times
Therefore, 8+4=12.
Kelli so far has made 12 calls in total.