All categories

4 years ago

Find the 87th term of the arithmetic sequence -19, -13, -7,...

Mathematics

1 answer:

jasenka [17]4 years ago

5 0

Answer: 497

Step-by-step explanation:

The formula for this sequence is (x+6), and since the first three terms are given, you only need to find the last 84 terms.

Multiply 6 by 84

6 * 84 = 504

Now subtract 7 from 504 since -7 is the third term.

504 - 7 = 497

You might be interested in

I need help... how do you solve this? I'm so sorry i just dont understand it

Novosadov [1.4K]

I need a question or a problem to solve??

6 0

3 years ago

X is greater than or equal to 11

goldenfox [79]

Answer: x ≥ 11

Step-by-step explanation: We wrote an inequality to represent this situation.

3 0

3 years ago

Write a number that is gratet than 1 in scientific notation explain how you knowit is grater than 1

sweet [91]

2 x 10^2 because 2 x 10^2 is 200 in standard form and 200 is greater than 1.

7 0

3 years ago

Which expressions are equivalent to 2(25)?

nordsb [41]

The two on the bottom

7 0

3 years ago

Read 2 more answers

(x³ + ³) / (x - y)<br> Do not include parentheses in your answer.

Lubov Fominskaja [6]

The simplified expression of $\frac{x^3 + (-y)^3}{(x - y}$ is $x^2+xy+y^2$

<h3>Complete question</h3>

Simplify the expression: (x³ + (-y)³) / (x - y)

Do not include parentheses in your answer.

<h3>How to simplify the expression?</h3>

The expression is given as:

$\frac{x^3 + (-y)^3}{(x - y}$

Open the inner bracket

$\frac{x^3 -y^3}{(x - y}$

Apply the difference of two cubes to the numerator

$\frac{(x-y)(x^2+xy+y^2)}{(x - y}$

Cancel out the common factors

$x^2+xy+y^2$

Hence, the simplified expression of $\frac{x^3 + (-y)^3}{(x - y}$ is $x^2+xy+y^2$