3 years ago

What is the explicit formula for this sequence? 7, 2, -3, -8

Mathematics

1 answer:

inn [45]3 years ago

8 0

Answer:

Common difference (d) = -5

Step-by-step explanation:

formula=>

an = a + (n-1)d

=> -8 = 7 + (4-1)d

=> -15 = 3d

=> 3d = -15

=> d = -15/3

=> d = -5

You might be interested in

URGENT Part A: Solve –mk – 90 > 85 for m. Show your work. Part B: Solve 3c – 5f = 55 for f. Show your work.

GarryVolchara [31]

I think I only know the second part.

3c=55t+5f
3c=60f
c=20f

4 0

4 years ago

Read 2 more answers

What’s 1 Whole and one sixth multiplied by 2 and two over seven

irga5000 [103]

Answer:

.45714285714

Step-by-step explanation:

multiply then divide

8 0

3 years ago

Which is bigger 52L or 5200mL

mel-nik [20]

52L, because there are 1000 mL in one L, so 52L is equal to 52000mL. clearly, 52000mL is greater than 5200mL.

5 0

3 years ago

Read 2 more answers

How do I do -9+-2x+9x-1

SVETLANKA909090 [29]

You combine like terms.
-2x+9x
whatever answer that is you then combine the like terms -9+-1 the you just make an expression out of them.

3 0

3 years ago

Read 2 more answers

Hello pls help I'm dumb thx it's pre calc

Bumek [7]

(f-g)(x)=f(x)-g(x)=
$\frac{2x+6}{3x}-\frac{\sqrt{x}-8}{3x}=$
$\frac{2x+6-(\sqrt{x}-8)}{3x}=$
$\frac{2x+6-\sqrt{x}+8}{3x}=$
$\frac{2x-\sqrt{x}+14}{3x}$
answer is A

3 0

4 years ago