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Rus_ich [418]
3 years ago
11

30 POINTS!!! Which choice is equivalent to the fraction below when x is greater than or equal to 3?

Mathematics
2 answers:
Bond [772]3 years ago
6 0

Answer:

the answer would be c

Step-by-step explanation:

like the hint says, rationalize the denominator by multiplying the numerator and denominator by the conjugate

(\sqrt{x} + \sqrt{x-3}), and then simplify after that...hope this helps :)

Mashcka [7]3 years ago
4 0

Answer: C.

\frac{9}{\sqrt{x} -\sqrt{x-3} }=\frac{9(\sqrt{x} +\sqrt{x-3} )}{x-(x-3)}=\frac{9(\sqrt{x} +\sqrt{x-3} )}{3}=3(\sqrt{x} +\sqrt{x-3})

Step-by-step explanation:

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garri49 [273]
Answer: c and e
explanation: put the equation in the graphing calculator and look at the graph and table the answer will show
4 0
3 years ago
Simplify (1234567)^0
Daniel [21]

Answer:

every \: number \: by \: power \: 0 \: is \: equal1 \\  {x}^{0}  = 1

4 0
3 years ago
Can any one please help me in number 4 please I really need help please
Reil [10]

Answer:

24

Step-by-step explanation:

4 0
3 years ago
Kendra found this relationship between the quantities in the table.
slava [35]

Answer:

Kendra should have multiplied the x-values by 75 to get the y-values

Step-by-step explanation:

Given

Table

X|| Y

1 || 75

2 || 150

3 || 225

4 || 300

5 || 375

Given that Kendra multiply x by 7.5 to get y

The relationship of x and y can be calculated as thus;

y = rx

Where y and x are the values at the y and x column respectively and r is the constant of proportionality

When y = 75, x = 1.

Plug in these values in the above formula

y = rx becomes

75 = r * 1

75 = r

r = 75

When y = 150, x = 2

150 = r * 2

Multiply both sides by ½

150 * ½ = r * 2 * ½

75 = r

r = 75

When y = 225, x = 3

225 = r * 3

Multiply both sides by ⅓

225 * ⅓ = r * 3 * ⅓

75 = r

r = 75

Notice that r remains 75 and the difference between y values is 75

If you apply these formula on when y = 300 or 375 and when x = 4 or 5, the constant of proportionality will remain The value of 75.

Hence, Kendra mistake is that; Kendra should have multiplied the x-values by 75 to get the y-values

6 0
3 years ago
Read 2 more answers
This number is equivalent to seventeen and fifty thousandths
Novay_Z [31]
Seventeen and fifty thousandths in stander form is this:
<em><u>17.05</u></em>
5 0
3 years ago
Read 2 more answers
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