3 years ago

Explicit equation for 5,10,20,40

Mathematics

1 answer:

eduard3 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

These are the terms of a geometric sequence with n th term

$a_{n}$ = a $(r)^{n-1}$

Where a is the first term and r the common ratio

r = $\frac{10}{5}$ = $\frac{20}{10}$ = $\frac{40}{20}$ = 2

and a = 5, hence explicit equation is

$a_{n}$ = 5 $(2)^{n-1}$

You might be interested in

What are the number of possible digits to round 1_9,644 to the nearest 100,000?

damaskus [11]

4 goes in the blank.

In math, if any number like that is 5 or higher, it rounds to the nearest tenth.

so for example, 4 would round down to 0, and 5 would round up to 10.

So with the 4, it Makes 149.6k, which rounds down to 100,000.

3 0

2 years ago

Read 2 more answers

Solve the equation 3m=2(4+t) for t

Tanya [424]

3m=2(4+t)
3m= 8+2t
3m-8=2t
(divide everything by 2)
3/2m-4=t

t=3/2m-4

8 0

2 years ago

Four times a number increased by 3 is -89

sp2606 [1]

Answer:

-21.5

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Find the next term in this arithmetic sequence. 7/2, 9/4, 1, -1/4, -3/2,_

Damm [24]

Answer: -11/4

Step-by-step explanation:

5 0

3 years ago

Solve the inequality. 5/6t - 3≥3t + 6

Papessa [141]

Answer:

t ≤ $-\frac{54}{13}$

Step-by-step explanation:

$\frac{5}{6}$ t−3−3t≥3t+6−3t

$-\frac{13}{6}$ t−3≥6

- $\frac{13}{6}t$ −3+3≥6+3

$\frac{13}{6}$ t≥9

$-\frac{6}{13}$ ( $-\frac{13}{6}$ t) ≥ $-\frac{6}{13}$ (9)

t ≤ $-\frac{54}{13}$

6 0

2 years ago