All categories

3 years ago

What are the first four terms of the sequence represented by the expression n(n – 1) – 5?

2 answers:

7 0

The first third terms are n^2, -n, and -5. There is not fourth.

Explanation:
To solve this, we would first distribute n(n-1) by doing n x n - n x 1. That gives us n^2 - n. Now, we add back the -5 which would be n^2 - n - 5.

Gemiola [76]3 years ago

4 0

N^2
-1n
-5
I'm not sure about the 4th

You might be interested in

The rule that maps each domain value to its range value is f(x)= ___x.

kirill115 [55]

Answer:

f(x) = 1/2x

Step-by-step explanation:

When x = -4 the output is -2

We are dividing by 2

When x = -2 the output is -1

f(x) = 1/2 x

Check when x = 2

f(2) = 1/2 (2) =1

3 0

3 years ago

The price of a sweatshirt at a local shop is twice the price of a pair of shorts. The price of a T-shirt at the shop is $4 less

fomenos

Answer:

The answer to your question is below

Step-by-step explanation:

Equation 1

$sweatshirt = 2 pair of shorts

w = 2h

Equation 2

$t-shirt = $pair of shorts - $4

t = h - 4

Equation 3

Total cost = 3 sweatshirts + 2 pairs of shorts + 5 t-shirts

Total cost = 3w + 2h + 5t = 136

5 0

3 years ago

Read 2 more answers

A population of fish starts at 8,000 and decreases by 6% per year. What is the initial value, a? A.6% B.0.6 C.8,000

EleoNora [17]

Y = a(1 - r)^t
Y = 8,000(1 - 0.06)^t

You can see a = 8,000
As the fish population starts at 8,000

3 0

3 years ago

Read 2 more answers

MAKING AN ARGUMENT You and a friend are going hiking but start at different locations. You start at the trailhead and walk 5 mil

lesya [120]

Answer:

$y = 5x$ -- You

$y = 3 + 3x$ --- Your friend

Step-by-step explanation:

Given

You:

Trailhead implies the beginning so:

$Start = 0\ mile$

$Rate = 5miles/hour$

Your Friend

$Start = 3\ mile$

$Rate = 3miles/hour$

Required

Represent as an equation

From the question, we understand that:

$y = distance$

$x = number\ of\ hours$

So, the relationship between $distance\ and\ time\ is:$

$Distance = Start + Rate * Number\ of\ hours$

In terms $of\ x\ and\ y$ , we have:

$y = Start + Rate * x$

For you, the equation becomes:

$y = 0+ 5* x$

$y = 0+ 5x$

$y = 5x$

For your friend, the equation becomes:

$y = 3 + 3 * x$

$y = 3 + 3x$

4 0

2 years ago

If you pay $25.72 for a drug and the selling price is $42.50 what is the percent gross profit?

kumpel [21]

Answer:

The Gross Profit would be 16.78.

Step-by-step explanation:

To find gross profit you need to deduct the costs associated with making and selling its products, or the costs associated with providing its services. SO you would do 42.50-25.72.

5 0

2 years ago