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gogolik [260]
3 years ago
12

An earthquake wave travels through 55 km of rock in 25 seconds.

Mathematics
1 answer:
rewona [7]3 years ago
7 0

Answer:Therefore, the relationship will be of the form, y = mx + b, or in this case, d = (max distance / max time)t + 0.

Step-by-step explanation:

You might be interested in
Mark makes commission on his sales of software. If he sells up to $20,000 in one month his commission is 10% of the total. If he
blsea [12.9K]
The answer is C. $5,355

In order to find this amount you need to find how much he makes in each month individually. We'll start with month one where he sold $13,500 worth of software. Since that number is under $20,000 we know that he makes 10%. So to find his earnings, we simply multiply the told sold by the percentage. 

$13,500 * 10% = $1,350

Now we need to find the amount for month two. Since he sold $26,700, which is more than $20,000 we know that he gets the 15% of the amount sold. Similarly to last time, we'll multiply the two together. 

$26,700 * 15% = $4,005

Now you can combine the two of them to find the overall amount. 

$1,350 + $4,005 = $5,355
3 0
3 years ago
What decimal is equivalent to 13/11​
Katyanochek1 [597]

Answer:

1.1818...

Step-by-step explanation:

Divide 13 by 11

13 ÷ 11 = 1.1818...

Answer: 1.1818...

8 0
3 years ago
A poll of 793 adults aged 18 or older asked about purchases that they intended to make for the upcoming holiday season. One of t
Ira Lisetskai [31]

Answer:

(0.5793, 0.6363)

Step-by-step explanation:

Given that a  poll of 793 adults aged 18 or older asked about purchases that they intended to make for the upcoming holiday season. One of the questions asked about what kind of gift they intended to buy for the person on whom they would spend the most. Clothing was the first choice of 482 people.

i.e. sample proportion p= \frac{482}{793} =0.608

q=1-p = 0.392

Std error of p = \sqrt{pq/n} =0.0173

For 90% Z crtiical = 1.645

Hence margin of error = 1.645 * std error = 0.0285

Confidence interval 90%

= proportion ±margin of error

=(0.5793, 0.6363)

3 0
3 years ago
The equation (2x^2 - 1)(3x+2) = (2x²)(3x) + (2x²)(2) + (-1)(3x)+(-1)(2) is an example
Nookie1986 [14]

The method used is Distributive Property.

<h3>What is Distributive property?</h3>

The Distributive Property is an algebraic property that is used to multiply a single value and two or more values within a set of parenthesis.

Given:

(2x² - 1)(3x+2) = (2x²)(3x) + (2x²)(2) + (-1)(3x)+(-1)(2)

Here the property used is Distributive property.

Because distributive property in this way

a*(b+c)= a*b+ a*c

This is how a is being multiplied by with b and c.

Learn more about this Distributive property here:

brainly.com/question/4136433

#SPJ1

8 0
2 years ago
Write a inequality to represent a number is at most two
Arturiano [62]

Answer:

x≤2

Step-by-step explanation:

8 0
3 years ago
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