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3 years ago

Help pleaseeeeeghffffffff

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

6 0

Step-by-step explanation:

TPC and DPC are supplementary angles so

DPC=180-123=57°

Vinil7 [7]3 years ago

3 0

Answer:

m arc BDT = 270°

Step-by-step explanation:

m arc BDT = 360° -90° = 270°

________________

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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>

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)

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