2 years ago

What is the 18th term of the arithmetic

Mathematics

1 answer:

Irina18 [472]2 years ago

3 0

Answer:

-66

Step-by-step explanation:

a1 = 2

n = 18

d = - 4

a18 = a1 + (n - 1) * d

a18 = 2 + (18 - 1)*(-4)

a18 = 2 + 17*-4

a18 = 2 - 68

a18 = -66

You might be interested in

Which is equivalent to sin-1(–0.4)?

Gekata [30.6K]

–2.50 –0.60 –0.41 –0.39

5 0

2 years ago

Read 2 more answers

ASAP please help me I need this quick <br> The question and answers are in the picture

7nadin3 [17]

Thé correct answer is the third one

5 0

3 years ago

You’ve observed the following returns on Crash-n-Burn Computer’s stock over the past five years: 14 percent, –9 percent, 16 perc

MatroZZZ [7]

Answer:

a. 9%

b. 0.01445

c. 12.02%

Step-by-step explanation:

n = 5 years

Return rates = 14%, –9%, 16%, 21%, and 3%

a. Arithmetic average return

$A= \frac{14-9+16+21+3}{5} \\A=9.00$

b. Historical variance (to 5 decimal places)

$V= \frac{\sum (X_i-A)^2}{n-1} \\V= \frac{(0.14-0.09)^2+(-0.09-0.09)^2+(0.16-0.09)^2(0.21-0.09)^2(0.03-0.09)^2}{5-1}\\ V=0.01445$

c. Standard deviation.

$s = \sqrt{V} \\s= \sqrt{0.01445}\\s=0.1202 = 12.02\%$

8 0

2 years ago

The cost of a ball is one fourth of the cost of a bat. Write this statement as a linear equation in two variables

stiks02 [169]

Answer:

y: cost of a ball

x: cost of a bat

y = 1/4 * x

6 0

2 years ago

CAN SOMEONE PLEASE HELP ME ASAP

Sunny_sXe [5.5K]

Answer:

Step-by-step explanation:

difference between coordinates of A and C is 9 because 7-(-2) is 9, one-third of nine is 3, -2+3=1 G is 1. (sorry for poor phrasing)

8 0

3 years ago