3 years ago

I think some people deserve these points, I have gotten so much help in this subject. You are welcome.

Mathematics

2 answers:

Elenna [48]3 years ago

6 0

you’re so sweettttttt

Cerrena [4.2K]3 years ago

5 0

Es genial que no mientas, pero acepto puntos que necesitan ayuda

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Find a formula for the nth term of the arithmetic sequence

vagabundo [1.1K]

Answer:

11+2n

Step-by-step explanation:

Arithmetic sequence=a+(n-1)d

a=first number

n=nth term

d=difference

a=9

n=?

d=-2

So let's solve

9+(n-1)(-2)

9+(2n+2)

9+2n+2

Collect like terms

9+2+2n

11+2n

So the nth term is 11+2n

7 0

4 years ago

Which of the following statements is true

kolbaska11 [484]

Answer:

D. This quadratic equation two complex solutions.

Step-by-step explanation:

$5x^2 +6x +2= 0\\$

Equating it with

$ax^2 +bx +c= 0\\$

a = 5, b = 6, c = 2

$b^2 -4ac\\= 6^2 - 4\times 5\times 2\\= 36-40\\b^2 -4ac= - 4\\$

$\because b^2 -4ac$ is negative.

Therefore, this quadratic equation two complex solutions.

5 0

3 years ago

What is the anserw to round to the nerst hunder with 872

katrin2010 [14]

900. You round up, because it is above 850. :-)

5 0

3 years ago

Do fractional solutions make sense in this cobtext? Why or why not?

Alenkinab [10]

Answer:

yes

Step-by-step explanation:

8 0

3 years ago

1/2a=1/4a+2<br> Solve for a:<br> Check your solution:

vekshin1

Answer:

a=-1

Step-by-step explanation:

1/2a=1/4a+2

by cross multiplying,

2a=4a+2

2a-4a=2

-2a=2

a=2/-2

a=-1

hope you understood :)

7 0

3 years ago