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Ivahew [28]
3 years ago
10

A plumber charges $30 for a service call and an additional $25 per hour. Write an equation in slope-intercept form to represent

the cost of service, C, for h hours of service. Then find the cost if the plumber worked 7 hours on a project.
Mathematics
1 answer:
murzikaleks [220]3 years ago
3 0

Answer:

The equation is c=25h+30 and the answer is 205

Step-by-step explanation:

Plug in 7 for h.

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Can some one help he out.
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For what values of m does the graph of y 3x2 7x m have two x intercepts
Phoenix [80]

The graph has a minimum point and is a parabola. Therefore, change the minimal value in the formula y = 3x2 + 7x + m. The value at the minimum point must be smaller than zero because the graph has two x-intercepts. The minimum point of the graph, which is a parabola, lies at x=-b/2a = -7/6.

What is Graph?

In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way. The relationships between two or more items are frequently represented by the points on a graph.

The graph has a minimum point and is a parabola.

Therefore, change the minimal value in the formula y = 3x^2 + 7x + m.

The value at the minimum point must be smaller than zero because the graph has two x-intercepts.

The graph is a parabola, with x=-b/2a = -7/6 as the minimum.

3(49/36) – 49/6 + m < 0

49/12 – 49/6 + m < 0

(49-98)/12 + m < 0

-49/12 + m < 0

m < 49/12

Learn more about Graph click here:

brainly.com/question/25020119

#SPJ4

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The concept here is that if a country has a small population, then the per capita income would be large. by dividing the total income by the total population giving you the per capita income. 

-hope this helps
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