First four terms would be n = 1, 2, 3, 4

f(1) = 3 ( 1 )( 1 + 3 )
= 3 * 4
=12
f(2) = 3 ( 2 )( 2 + 3 )
= 6 * 5
= 30
f(3) = 3 ( 3 )( 3 + 3 )
= 9 * 6
= 54
f(4) = 3 ( 4 )( 4 + 3 )
= 12 * 7
= 84 hope this helps!

8 0

4 years ago

Read 2 more answers

Audrey and David are reading the same book.

DIA [1.3K]

Answer: C.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Ben also participated. He fell down midway, and had to walk part of the distance. Still, he finished the distance! It took him e

sammy [17]

Answer:

0.56 m/s

Step-by-step explanation:

The average speed of a body tells how fast is the body moving; it is calculated as:

$v=\frac{d}{t}$

where

d is the distance covered

t is the time elapsed

In this problem, we don't know the distance covered by Ben. Therefore, we will assume that it is 1 km:

d = 1 km = 1000 m

The time elapsed to cover this distance is:

$t=30 min \cdot 60 =1800 s$

Therefore, Ben's average speed is:

$v=\frac{1000}{1800}=0.56 m/s$

3 0

3 years ago