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Vikentia [17]
3 years ago
13

Which represents the domain of the relation {(–1, 4), (2, –3), (0, –2), (1, –3)}? {–3, –2, 4} {–3, –2, –1, 0, 1, 2, 4} {–1, 0, 1

, 2} {–3}
Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

(2, -3)

Step-by-step explanation:

(2,-3)

(0, -3)

(1, -3)

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Delia is a graphic designer who charges an hourly rate. She made the graph to show her total earnings for various numbers of hou
stich3 [128]

Answer:

approximately 7 hours

see the explanation

Step-by-step explanation:

The picture of the question in the attached figure

Let

x ----> the time worked in hours

y ----> the amount earning in dollars

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u><em>and the line passes through the origin</em></u>

so

In this problem we have a proportional relationship

step 1

Find approximately how many hours would it take Delia to earn $250 ?

Looking at the graph

For y=$250 The value of x is approximately 7 hours

see the attached figure N 2

step 2

Find the exact value

from the graph take the point (5,175)

Find the value of k

k=\frac{y}{x} ----> k=\frac{175}{5}=\$35\ per\ hour

The linear equation is

y=35x

For y=$250

substitute

250=35x

solve for x

x=7.14\ hours

8 0
3 years ago
What is the value of X? inscribed angles <br><br> a. 30<br> b. 15<br> c. 35<br> d. 25
OlgaM077 [116]

Answer:

a. 30

Step-by-step explanation:

Rotate the image and observe, you will see the difference between 30° and 35°

Hope this helps

3 0
1 year ago
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