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3 years ago

What part of a relation is the set of all first components from each ordered pair?

2 answers:

ivann1987 [24]3 years ago

7 0

Hello there.

What part of a relation is the set of all first components from each ordered pair?

domain of the relation

Orlov [11]3 years ago

5 0

The mathematical term for a set of ordered pairs is a relation. A relation is any set of ordered pairs. The set of all first components of the ordered pairs is called the domain of the relation, and the set of all second components is called the range of the relation.

I hope my answer helped you.

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Find a10 given the geometric sequence 3, 12, 48, 192, ...

notka56 [123]

Answer:

Step-by-step explanation:

first term = a = 3

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= 12 ÷ 3

r = 4

$a_{n} = ar^{n-1}\\\\a_{10}=3*4^{9}\\\\\\ = 3 * 262144\\\\= 786432$

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3 years ago

Simplify please (n^11)^2

Citrus2011 [14]

Answer:

n^22 (I love your profile picture by the way)

Step-by-step explanation:

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3 years ago

Read 2 more answers

use the information on justines test paper to express the part of the 80 test questions she got correct as a fraction,percent an

kompoz [17]

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3 years ago

What has she done wrong?

Strike441 [17]

Answer:

see explanation

Step-by-step explanation:

Her error is in squaring (2y)²

She has (2y)² = 2y²

when it should be 2y × 2y = 4y²

Then

(2y)² = 6² + 8²

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8 0

2 years ago

A rectangular parking area measuring 5000 ft squared is to be enclosed on three sides using chain-link fencing that costs $5.5

kaheart [24]

Answer:

Dimensions: 75.3778 ft and 66.3325 ft

Minimum price: $1658.31

Step-by-step explanation:

Let's call the length of the parking area 'x', and the width 'y'.

Then, we can write the following equations:

-> Area of the park:

x * y = 5000

-> Price of the fences:

P = 2*x*5.5 + y*5.5 + y*7

P = 11*x + 12.5*y

From the first equation, we have that y = 5000/x

Using this value in the equation for P, we have:

P = 11*x + 12.5*5000/x = 11*x + 62500/x

To find the minimum of this function, we need to take its derivative and then make it equal to zero:

dP/dx = 11 - 62500/x^2 = 0

x^2 = 65000/11

x = 250/sqrt(11) = 75.3778 ft

This is the x value that gives the minimum cost.

Now, finding y and P, we have:

x*y = 5000

y = 5000/75.3778 = 66.3325

P = 11*x + 62500/x = $1658.31

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3 years ago