3 years ago

Find the y intercept of a line with a slope of -4 and point (2,1)

Mathematics

1 answer:

Oxana [17]3 years ago

6 0

Is this a rise over run question

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Determine the domain of the function h=9x/x(x^2-49)

Juliette [100K]

ANSWER

$( - \infty , - 7) \cup( - 7 , 0) \cup(0 , 7 )\cup(7 , + \infty )$

EXPLANATION

The given function is

$h(x) = \frac{9x}{x( {x}^{2} - 49) }$

This function is defined for values where the denominator is not equal to zero.

$x( {x}^{2} - 49) \ne0$

$x(x - 7)(x + 7) = 0$

The domain is

$x \ne - 7, x \ne0, \: and \: x \ne 7,$

$( - \infty , - 7) \cup( - 7 , 0) \cup(0 , 7 )\cup(7 , + \infty )$

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2 years ago

For homework a student had to complete 15 problems total. If she finished 6 problems in class, what is the ratio of problems she

nexus9112 [7]

Well if the student already finished 6 problems out of 15, there are 15-6 = 9 homework questions she still has to finish.

Still needs to complete: 9.

Already finished: 6

9 : 6.

Simplified: 3 : 2

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Cooper earned $214.50 at his job when he worked for 13 hours. How much money did he earn each hour?

Lerok [7]

Answer:

$16.50

Step-by-step explanation:

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