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4 years ago

What is the common difference d of the sequence?

Mathematics

2 answers:

yaroslaw [1]4 years ago

6 0

To find common difference, subtract first term from 2nd
-4 - (-15) = -4 + 15 = 11

tangare [24]4 years ago

3 0

Just calculate second term - first term = -4 - (-15)

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When completing an online shopping transaction, a typical shopper takes 9 seconds to select each product and another 8 seconds t

katrin [286]

Answer:

In 26 seconds to complete a transaction, 2 products are being purchased.

Step-by-step explanation:

Here, time taken to select 1 item = 9 seconds

Time taken in all to check out = 8 seconds

Here, time taken to shop = 26 seconds

Now as check out process takes 8 seconds , so the

Time left to ACTUALLY SHOP = Total Time - Time Used to check out

= 26 seconds = 8 seconds = 18 seconds

Shopping of 1 item = 8 seconds

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So, in 18 seconds, 2 clothing item can be selected.

Hence,in 26 seconds to complete a transaction, 2 products are being purchased.

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4 years ago

Which table shows a proportional relationship between x and y? A. x y 2 4 3 6 4 9 B. x y 3 4 9 16 15 20 C. x y 4 12 5 15 6 18 D.

KiRa [710]

Answer:

Step-by-step explanation:

The relationship is proportion if y/x is constant.

So it is C because 12/4 = 15/5 = 18/6 = 3.

3 0

3 years ago

Read 2 more answers

Alex invests $2,000 in a company's stock. After a year, the value of Alex's stock has increased to $2,500. What rate of return h

Kay [80]

The rate of interest is 25%

<u>Explanation:</u>

Given:

Principal, P = $2,000

Amount, A = $2500

Time, t = 1 year

Rate of Interest, r = ?

We know:

$Amount = P(1+\frac{r}{100})^t$

On substituting the value we get:

$2500 = 2000 (1 + \frac{r}{100})^1\\ \\\frac{25}{20}= (1+\frac{r}{100})\\$

$\frac{5}{20} = \frac{r}{100}\\ \\r = \frac{100 X 5}{20} \\\\r = 25$

Therefore, the rate of interest is 25%

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3 years ago

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Fynjy0 [20]

The correct answer is C) 900

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4 years ago

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3 years ago