All categories

2 years ago

What is the ninth term of the arithmetic sequence defined by the rule A(n)= -14+(n-1)(2)

1 answer:

3 0

If you start counting from 0, you ninth term will be 8. Replace n=8 and calculate:
A(8) = -14 + (8-1)(2) = -14 + (7)(2) = -14 + 14 = 0

If you start counting from 1, your ninth term will be 9. Replace n=9 and calculate:
A(9) = -14 + (9-1)(2) = -14 + (8)(2) = -14 + 16 = 2

You might be interested in

BIG POINT FOR WHOEVER HELPS ME! PLEASE!!!!!Simplify and determine the coefficient of (-2/3X)(3Y).-X)

rewona [7]

You multiply like terms first, which means -2/3x*-x. It becomes 2/3x*3y. The coefficient of x is 2/3. The coefficient of y is 3. You can’t combine them because they are not like terms with the variables.

6 0

3 years ago

Is this a function? Why or why not? * 10 points Captionless Image

GrogVix [38]

Answer:

Wheres the function, what do u mean by captionless image

3 0

3 years ago

Find the inverse of 2∛(x+2)

Artemon [7]

$y=2\sqrt[3]{x+2}\ \ \ |divide\ both\ sides\ by\ 2\\\\\sqrt[3]{x+2}=\dfrac{y}{2}\to x+2=\left(\frac{y}{2}\right)^3\ \ \ |subtract\ 2\ from\ both\ sides\\\\x=\dfrac{y^3}{2^3}-2\\\\x=\dfrac{1}{8}y^3-2\\\\\boxed{f(x)=2\sqrt[3]{x+2}\to f^{-1}(x)=\frac{1}{8}y^3-2}$

5 0

3 years ago

What is the median of 0.8, 1.0, 2.7, 2.8, 3.1, 13.3

tresset_1 [31]

Answer:

$2.75$

Step-by-step explanation:

Step 1: Determine the median

$0.8, 1.0, 2.7, 2.8, 3.1, 13.3$

The median of a set is the middle of the set. In this instance, we have 6 numbers so we don't have a number directly in the set representing the median. Instead, we need to find the average or middle between the 3rd and 4th number. So we take 2.7 and 2.8, add them together to get 5.5 and then we divide by 2 to get 2.75 which is our median.

Answer: $2.75$

5 0

1 year ago

Read 2 more answers

What is the sum of the complex numbers 3 − 4i and 5 + 3i ?

Mandarinka [93]

Answer:

8 - i

General Formulas and Concepts:

Algebra I

Combining Like Terms

Algebra II

Standard Form: a + bi

Step-by-step explanation:

Step 1: Define

(3 - 4i) + (5 + 3i)

Step 2: Simplify

Combine like terms (Z): 8 - 4i + 3i
Combine like terms (i): 8 - i

7 0

3 years ago