3 years ago

What is the 8th term in the sequence? 14, 18, 116, 132, ...

1 answer:

4 0

$a_1=14;\ a_2=18\\\\d=a_2-a_1\to d=18-14=4\\\\a_n=a_1+(n-1)d\\\\a_n=14+(n-1)\cdot4=14+4n-4=10+4n\\\\a_8=10+4\cdot4=10+16=36\\\\Answer:\boxed{a_8=36}$

You might be interested in

George has two dogs.

Stella [2.4K]

Uhhhhhhhhhhhhhhhhhhhhhhhh

7 0

3 years ago

Read 2 more answers

What is the 50th term of the sequence that begins -4, 2, 8, 14....?

vagabundo [1.1K]

Answer:

$a_{50}=290$

Step-by-step explanation:

Notice that we are in the presence of an arithmetic sequence (there is a common difference of 6 between a term and the next). So thisis an arithmetic sequence with first term $a_1=-4$ . and common difference "<em>d</em>" = 6.

Recall now the formula for the nth term ( $a_n$ ) of an arithmetic sequence:

$a_n=a_1+(n-1)\,d$

Then, using our values in the formula, we get:

$a_n=a_1+(n-1)\,d\\a_{50}=-4+(50-1)\,6\\a_{50}=-4+(49)\,6\\a_{50}=290$

7 0

3 years ago

The original price of a skateboard was $25. New owners of the store raised the price to

Paha777 [63]

Answer:
D. 20%
Explain:
30-25=5
5/25= 20%

4 0

3 years ago

30 pens cost $12.50. how much is 75 pens cost

Mice21 [21]

Answer:$31.25

Step-by-step explanation:

$12.50/30=$.42each*75=$31.25

5 0

3 years ago

Which three of the following mixed numbers will produce a whole number when added?

Wewaii [24]

Answer:

$4\frac{1}{8} , 4\frac{3}{8} , 2\frac{1}{2} = 11$

6 0

3 years ago

Read 2 more answers