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horsena [70]
3 years ago
13

Multiply. (3x + 1)(2x – 1) Answer plz

Mathematics
2 answers:
DENIUS [597]3 years ago
8 0

Answer:

= 3x + 1 + 2x - 1 \\  = 3x + 2x + 1 - 1 \\  = 5x + 0 \\  = 5x

SIZIF [17.4K]3 years ago
4 0
Here is the answer and the steps

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Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hu
dolphi86 [110]

Answer:

The monthly cost for 9 HCF is $38.54

Step-by-step explanation:

<em>The graph is missing; however, the question can still be solved</em>

Given

Slope = 1.55

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Required

Determine the monthly cost for 9 HCF

From the question, we understand that it is a linear function;

Linear functions are of the form

y = mx + b

Where y is the function of x and m is the slope

In this case; the function is the monthly water bill

and x is the amount of water

Solving for b

When monthly cost = $47.84, Amount of water = 15 HCF

The function is as follows;

47.84 = 1.55 * 15 + b

47.84 = 23.25 + b

Subtract 23.25 from both sides

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x = Amount\ of\ water = 9

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b = 24.59

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<em>Hence, the monthly cost for 9 HCF is $38.54</em>

5 0
3 years ago
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