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3 years ago

6/7 - 6/7 = ? Help please.

Mathematics

2 answers:

swat323 years ago

8 0

Answer:

Step-by-step explanation:

First, we should line up the fractions.

6 / 7 - 6 / 7.

Second, we subtract straight across since denomionators are the same.

6 / 7 - 6 / 7 = 0.

Therefore, the difference is 0.

Tresset [83]3 years ago

8 0

Answer: 0

Step-by-step explanation: To subtract like fractions such as 6/7 - 6/7, we simply subtract the numerators and keep the original denominator.

So in this problem, we subtract 6 - 6 to get 0 and we keep the denominator of 7 which gives us 0/7.

When we have 0 in the numerator of a fraction, it simplifies to just 0.

This means that 6/7 - 6/7 = 0.

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Answer:

Step-by-step explanation:

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2 years ago

Which equation is the inverse of y = 9x2 - 4?

m_a_m_a [10]

Answer:

The inverse will be:

$y' = \frac{\sqrt{x+4}}{3}$

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

$f(x) = 9x^{2} - 4$

$y = 9x^{2} - 4$

$x = 9y' ^{2} - 4$

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

$x + 4= 9y'^{2} - 4+4$

$9y'^{2}$ = x + 4

Second divide by 9

$9y'^{2}$ /9 = (x + 4)/9

$y'^{2}$ = (x + 4)/9

Now you will have to clear y, with the square root.

$[tex]y'^{\frac{2}{2}} = \sqrt{x + 4} / \sqrt{9}$ [/tex] =

Simplifying terms

$y' = \frac{\sqrt{x+4}}{3}$

$f^{-1}(x) = \frac{\sqrt{x+4}}{3}$

You can check the answer by doing the evaluation of the following equation:

(f o $f^{-1}$ ) (x)

substitute the equation for y' or inverse function $f^{-1}$

f( $\frac{\sqrt{x+4} }{3}$ )

Now substitue the value into f(x)

You will have

$= 9(\frac{\sqrt{x+4} }{3}} )^{2} - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} ) - 4$

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3 years ago

What two numbers multiply to 75 and add too -20

tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

-15 times -5 = 75

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3 years ago

Tamara is a real estate agent and makes 5% commission on her total sales. She sells a home for $350,000. What is her commission?

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So this is basically a ratio and the form I use to solve these is
Is. = %
Of. 100
So we're looking for 5% of the 350,000 which will be x

X. = 5
350000. 100
Cross multiply
100x=1750000
Divide by 100

X=17500

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3 years ago

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cupoosta [38]

Answer:

The answer is D. 7

Step-by-step explanation:

the degree of polynomial is 7

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