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Sveta_85 [38]
3 years ago
14

A plumbing service costs $32.50 per hour of work. Let x represent the amount of time that a job takes and let y represent the to

tal cost.
- Is it continuous or discrete?
Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

This would be discrete

Hope this helps

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I’m honestly confused on how to solve for k. please help.
stellarik [79]

Answer:

k=9

Step-by-step explanation:

slope =  \frac{y2 - y1 }{x2 - x1}  \\  \frac{ - 5}{2}  =  \frac{ - 11 - k}{6 - ( - 2)}  \\  -  ( \frac{5}{2} ) =  - ( \frac{11 + k}{8} ) \\  \frac{5}{2}  =  \frac{11 + k}{8}  \\ 5  \times 8 = 2(11 + k) \\ 40 = 22 + 2k \\ k =  \frac{40 - 22}{2}  \\ k = 9

4 0
2 years ago
Write a linear equation in point-slope form to model the situation below:
Lilit [14]

Answer:

y - 14.95 = 18.075(x-1)

Step-by-step explanation:

If an internet company charges $14.95 per month and a setup fee, then we can say

1 month = $14.95

If the total cost for 9 months is $159.55

Then we can write both cases as a coordinate (1, 14.95) and (9,159.55)

The equation of a line in point slope form is expresses as

y-y0 = m(x-x0)

Find the slope m

m = 159.55-14.95/9-1

m = 144.6/8

m = 18.075

Substitute m = 18.075 and any of the coordinate in the equation to have;

Using the coordinate (1, 14.95)

y - 14.95 = 18.075(x-1)

Hence a linear equation in point-slope form that model the situation is y - 14.95 = 18.075(x-1)

3 0
3 years ago
Is y equals 2x + 4 linear or non-linear
Drupady [299]

Answer:

The equation listed is linear because 2x is a constant, meaning that it continuously moves in a straight line in one set direction.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help me with this question, image attached.
hichkok12 [17]

Answer:

corresponding angles

Step-by-step explanation:

<4 and <8 are corresponding angles

Corresponding angles are in matching corners on parallel lines

4 0
4 years ago
Read 2 more answers
one eighth of the brass instruments are tubas. if there are 240 instruments in the band, how many are tubas?
Andrej [43]
Just do 240 times 1/8 which is the same thing as 240/8, which is 30
6 0
3 years ago
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