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3 years ago

Find an equation for the nth term of the arithmetic sequence. -13, -8, -3, 2, ...

Mathematics

2 answers:

DerKrebs [107]3 years ago

4 0

A(n) = a + (n - 1 )d

Nikitich [7]3 years ago

3 0

Https://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.798537.html

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Why is a rhombus considered a type of quadrilateral?

leonid [27]

Answer:

Well a rhombus is considered a quadrilateral because it has 4 sides and 4 angles.

Just like a square and rectangle they both are quadrilaterals with 4 angles and sides.

8 0

4 years ago

System w/Elimination -2x-9y=-25 -4x-9y=-25

Lerok [7]

x=0 and y= $\frac{25}{9}$

Step-by-step explanation:

We need to solve the system by elimination and find values of x and y

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)$

Subtract eq(1) and eq(2)

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)\\+\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\---------\\2x=0\\x=0$

Now Multiply equation (1) by 2 and subtract with eq(2)

$-4x-18y=-50\\-4x-9y=-25\\+\,\,\,\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\--------\\-9y=-25\\y=\frac{-25}{-9}\\y=\frac{25}{9}$

So, x=0 and y= $\frac{25}{9}$

Keywords: system by elimination

Learn more about system by elimination at:

#learnwithBrainly

5 0

3 years ago

Solve using elimination x-3y=7 and 2x-6y=12 *

dimulka [17.4K]

Step-by-step explanation:

(x-3y=7)2

2x-6y=14

- 2x-6y=12

__________

-12y=2

y=-1/6

No solutions

6 0

3 years ago

In the 1990s, the number of target stores increased from 420 stores to 914 stores. What was the percent increased in the number

tino4ka555 [31]

Divide 914/420, move the decimal over to the right two places and you'll get approximately 217.5%

EDIT: My mistake, read question wrong.
$914-420 = 494$
$494/420 = 1.17$
117.62%
Subtract the difference and divide by original number (: Move decimal place over two places.

4 0

4 years ago

Find the value of x

cestrela7 [59]

Answer:

1 = 120

2 = 120

Step-by-step explanation:

4 0

2 years ago