Ask question

Ask question

All categories

3 years ago

8

Find the 81st term of the arithmetic sequence -10, -25, -40

2 answers:

nadezda [96]3 years ago

6 0

Answer:

-1210

Step-by-step explanation:

The nth term is -10-(15(n-1)) so

-10-(15(80)=

-10-1200=

-1210

Maurinko [17]3 years ago

5 0

Answer:

5 - (N x 15)

81 x 15 = 1215

5-1215=-1210

-1210 should be the 81st term

Step-by-step explanation:

You might be interested in

Please help me I really really need help

postnew [5]

Answer:

$B) \sqrt{2}$ ÷ $2\sqrt{5}$

Step-by-step explanation:

$A$ → $2\sqrt{5}$ ÷ $\sqrt{5}$

$= \frac{2\sqrt{5} }{\sqrt{5} }$

<u>→ </u><u>2</u><u> is a rational number</u>

$B)$ → $\sqrt{2}$ ÷ $2\sqrt{5}$

$=\frac{\sqrt{2} }{2\sqrt{5} }$

$=\frac{\sqrt{2} }{\sqrt{2}*\sqrt{2}*\sqrt{5} }$

$= \frac{1}{\sqrt{10} }$

<u>↑ is irrational number</u>

$C)$ $\frac{\pi }{2}$ ÷ $\pi$

$= \frac{\pi }{2} *\frac{1}{\pi }$

$=\frac{1}{2}$

<u>↑ is a rational number</u>

$D)$ $5\pi$ ÷ $\pi$

$= 5$

<u>↑ is a rational number</u>

<u>So,</u><u> Option B</u><u> is your answer</u>

$-----------------$

hope it helps..

have a great day!!!

5 0

3 years ago

60 is 5 times as great as k

sveta [45]

I think K is equal to seven.

6 0

3 years ago

Read 2 more answers

Which of the following is the graph of the equation y = 2x + 3?

statuscvo [17]

The correct graph would be graph c.

4 0

3 years ago

Read 2 more answers

....................................

Julli [10]

DO U HAVE A QUESTION THO FOR REAL

6 0

3 years ago

13-3-2-1+6 = please show your work.

uranmaximum [27]

Answer:

the answer is going to be 13

3 0

3 years ago

Read 2 more answers