All categories

4 years ago

Formar for solving an arithmetic progression

Mathematics

2 answers:

grin007 [14]4 years ago

6 0

Answer:

Step-by-step explanation: a + ( n- 1 )d

where,

'a' means first term

'n' means number

'd' means common difference

mixas84 [53]4 years ago

3 0

Step-by-step explanation:

$a_{n} = a + (n - 1) \times d$

You might be interested in

Fred bought 6 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are no

Svet_ta [14]

Fred started off with 94

7 0

3 years ago

The coordinates of the vertices of parallelogram RMBS are R(–4, 5), M(1, 4), B(2, –1), and S(–3, 0). Using the diagonals, prove

REY [17]

To prove a rhombus you need to show that the sides are congruent and the diagonals are perpendicular.

Sides:

$d_{RM}=\sqrt{(-4-1)^2+(5-4)^2}$

$=\sqrt{(-5)^2+(1)^2}$

$=\sqrt{25+1}$

$=\sqrt{26}$

$d_{MB}=\sqrt{(1-2)^2+(4+1)^2}$

$=\sqrt{(-1)^2+(15)^2}$

$=\sqrt{1+25}$

$=\sqrt{26}$

$d_{BS}=\sqrt{(2+3)^2+(-1-0)^2}$

$=\sqrt{(5)^2+(-1)^2}$

$=\sqrt{25+1}$

$=\sqrt{26}$

$d_{SR}=\sqrt{(-3+4)^2+(0-5)^2}$

$=\sqrt{(1)^2+(-5)^2}$

$=\sqrt{1+25}$

$=\sqrt{26}$

$\overline{RM}$ ≅ $\overline{MB}$ ≅ $\overline{BS}$ ≅ $\overline{SR}$

Diagonals:

Use the slope formula: $m=\dfrac{y_2-y_1}{x_2-x_1}$

$m_{RB}=\dfrac{5+1}{-4-2}$

$=\dfrac{6}{-6}$

= -1

$m_{MS}=\dfrac{4-0}{1+3}$

$=\dfrac{4}{4}$

= 1

Slopes are opposite reciprocals so they are perpendicular.

***************************************************************************

All of the sides are congruent and the diagonals are perpendicular so RMBS is a rhombus.

4 0

4 years ago

HELPPPP A GIRLLL OUT! PLSSS AND THANK YOUU

erastova [34]

The x intersect is at 2,5 and the y intersect is at -1,5

2,5 + (-1,5) = 1

The answer should be the first option.

The first option says that the sum of x + y = more or the equal than 1.

Hope it helped!

4 0

3 years ago

at the local deli chrystelle bought 2/3 pound of ham and 3/5 as many pounds of cheese as ham. cheese costs 4.95 per pound and ha

Zielflug [23.3K]

Chrystelle bought 2/3 pound of ham. (given)
She bought 3/5 * 2/3 = 2/5 pound of cheese.

The cheese cost 4.95 per pound, so she paid 2/5*4.95 = 1.98 for the cheese.
The ham cost 5/3 * 4.95 = 8.25 per pound, so she paid 2/3*8.25 = 5.50 for the ham.

Her total purchase was 1.98 +5.50 = 7.48 for the ham and cheese.

Selections B, C, E are correct.

8 0

4 years ago

I need help ☹️☹️☹️ please!!!!!!!!!!

aliina [53]

Answer: 1st one

Step-by-step explanation:

4 0

3 years ago

Formar for solving an arithmetic progression ​

Formar for solving an arithmetic progression