Answer:
below
Step-by-step explanation:
Geometric series with first term 3 and common ratio r.
Last variety = 3 * 2^(12-1) = 6144.
Total = 3 * (2^12 - 1) / (2-1)
= 12285
Answer:
His average speed for the rest of the journey was of 48mph.
Step-by-step explanation:
We use the following relation to solve this question:
In which v is the velocity, d is the distance and t is the time.
First 32 miles at an average speed of 64mph.
So the time for these 32 miles is:
Rest of the trip:
200 - 32 = 168 miles in 4 - 0.5 = 3.5 hours. So the average speed is of:
His average speed for the rest of the journey was of 48mph.
consecutive even integers are 2 apart
so they are x and x+2
their sum is x+x+2
the sum is -50
so x+x+2=-50 would be the equation
we can simplify it to get 2x+2=-50
the answer is the 3rd option
Answer : The measurement of a central angle is,
Step-by-step explanation :
Formula used for angle subtended by an arc is:
where,
s = arc length =
r = radius =
Now put all the given values in the above formula, we get:
Thus, the measurement of a central angle is,
Student 1,2, and 3
Student 2,1, and 3
Student 1, 3, and 2
Student 2, 3, and 2
Student 3, 1, and 2
Student 3, 2, and 1
so 6 different orders