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shepuryov [24]
3 years ago
11

A plumber charges a flat fee of $50 plus an additional $20 per hour.

Mathematics
1 answer:
weeeeeb [17]3 years ago
4 0

Answer:

a) cost = 50 + 20x, where x is the number of hours worked for.

plot cost on the y-axis and hours on the x-axis.

b) cost = 50 + 20 x 4 = $130

c) 180 = 50 + 20x

   130 = 20x

   6.5 = x

   additional charges increment every hour, so the plumber must work for 7 hours before they obtain $180.

Step-by-step explanation:

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The values of two antiques were observed for a period of 50 years. The following equations model the value of each antique, wher
netineya [11]
Hello,

y=10x+175
y=-x²+50x

==> x²+10x-50x+175=0
==>x²-40x+175=0
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8 0
4 years ago
Find the sum of the following geometric sequences. d) 3 terms a= 16 r=3/4​
kodGreya [7K]

Answer:

S₃ = 37

Step-by-step explanation:

given a₁ = 16 and r = \frac{3}{4} , then

a₂ = a₁ × \frac{3}{4} = 16 × \frac{3}{4} = 12

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7 0
2 years ago
Please help with this math question.​
V125BC [204]

The coordinate grid of the ordered pair is gotten from the combination of the y and X axis of the graph.

<h3>Finding of the ordered pair</h3>

Using the coordinates, an ordered pair for the given point is:

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The transformations are vertical translation 7 units up.horizontal translation 3 units to the left

We have given that the equations

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We have to determine the correct transformation,

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Vertically translating a graph is equivalent to shifting the base graph up or down in the direction of the y-axis. A graph is translated to k units vertically by moving each point on the graph k units vertically.

Notice that the addition of 2 units to the variable x in the exponent involves a horizontal shift to the left in 2 units.

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