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solmaris [256]
3 years ago
11

Give the domain and range of the relation.

Mathematics
2 answers:
Fofino [41]3 years ago
6 0
I’am doing this rn it’s soooo hardddd!! Let me see if I know this one
Nuetrik [128]3 years ago
6 0
It’s the first one because remember that domain is the x - value and the range is the y- value .
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The cost for an order of 100 kilograms of steel bars is $230. The cost for an order of 150 kilograms of steel bars is $320. Writ
luda_lava [24]

Answer:

y = 9x/5 + 50

Step-by-step explanation:

We are represent the information as coordinate (x,y)

If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)

Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;

(150, 320)

Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c

m is the slope

c is the intercept

Get the slope;

m = y2-y1/x2-x1

m = 320-230/150-100

m = 90/50

m = 9/5

Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c

230 = 9/5(100)+c

230 = 9(20)+c

230 = 180 + c

c = 230-180

c = 50

Get the required equation

y = mx+c

y = 9/5 x + 50

Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50

4 0
3 years ago
Wesley has 480 stamps in his collection. He puts these stamps into display cases. Each display
disa [49]

Answer:

Wesley needs 32 displays for his stamp collection

Step-by-step explanation:

480 stamps in total.

15 stamps in each case

480/ 15= 32

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2 years ago
What do you know about parallel slopes; perpendicular slopes?
sukhopar [10]

Answer:

<em>Parallel slopes</em>: two lines that has the same slopes but have different y-intercept

<em>Perpendicular slope</em>: two lines that are negative reciprocals(common) of each other

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An entry level price for Car A is R220 000, while an entry level price for Car B is approximately 81.818% of Car A. Explore Moto
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2 years ago
Name the postulate or theorem you can use to prove
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AAS

A for <SUR and <TVR

A for <SRU and <TRV

S for SU and TV

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2 years ago
Read 2 more answers
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