2 years ago

Rufus works an average of 46 hours each week. He gets paid $5.70 per

Mathematics

1 answer:

fenix001 [56]2 years ago

7 0

The answer is A. $14,523.60

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Kelly practiced her flute for 30 minutes a day for 9 days. How many total minutes did she practice?

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A recursive rule for a geometric sequence is a1=49;an=3an−1.

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I think it should be an= 49x3^(n-1)

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3 years ago

The population of a town in 2000 was 430. The population is increasing at a rate of 0.9% every year. What will be the projected

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P ?
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3 years ago

If your starting salary were $35,000 and you received a 6% increase at the end of every year for 16 years, what would be the tot

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3 years ago

Determine the equation of quadratic function represented by the table of value below.

Svetllana [295]

Answer:

Step-by-step explanation:

The general rule for the quadratic function is

$y=ax^2+bx+c$

Use the data from the table:

$y(0)=6\Rightarrow 6=a\cdot 0^2+b\cdot 0+c\\ \\y(1)=4\Rightarrow 4=a\cdot 1^2+b\cdot 1+c\\ \\y(-1)=10\Rightarrow 10=a\cdot (-1)^2+b\cdot (-1)+c$

We get the system of three equations:

$\left\{\begin{array}{l}c=6\\ \\a+b+c=4\\ \\a-b+c=10\end{array}\right.$

From the first equation

$c=6,$ then

$\left\{\begin{array}{l}a+b=-2\\ \\a-b=4\end{array}\right.$

Add these two equations:

$a+b+a-b=-2+4\\ \\2a=2\\ \\a=1$

So,

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The quadratic function is

$y=1\cdot x^2-3x+6\\ \\y=x^2-3x+6$

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3 years ago