3 years ago

Help with number 7 thanks

Mathematics

1 answer:

REY [17]3 years ago

3 0

The second answer is NOT a function because the X values repeat with differing Y values.

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What is 5/7-(-1/7) as a fraction?

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$\frac{5}{7} - \frac{1}{7}$

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3 years ago

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Given functions f and g, find f-g.

Eva8 [605]

Answer:

$-5x-5$

Step-by-step explanation:

original functions:

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Distribute the negative sign:

$3x-8-8x+3$

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The campsite is square in shape and has a length of 65 metres. What is the area of the campsite?

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3 years ago

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3x/4-7/2=1/4 what does x equal

LUCKY_DIMON [66]

Answer:

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Step-by-step explanation:

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2 years ago

-y varies inversely with x. When y = 9.6, x = 12. What is the value of k, the constant of inverse variation?

alisha [4.7K]

Question 1:

For this case we have an equation of the form:

$y = \frac {k} {x}$

Where,

k: inverse variation constant.

Then, substituting values we have:

$y =\frac {k} {x}$

From here, we clear the value of k.

We have then:

$k = 9.6 * 12\\k = 115.2$

Answer:

the constant of inverse variation is:

$k = 115.2$

Question 2:

For this case we have:

$y = \frac {k} {x}$

Where,

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Then, substituting the value of the constant we have:

$y =\frac {5.6} {x}$

We now substitute the value of x:

$y = \frac {5.6} {4}\\y = 1.4$

Answer:

the value of y when x = 4 is: $y = 1.4$

6 0

3 years ago