2 years ago

Does the equation xy + 6y = 9 define y as a function of x? O Yes O No

Mathematics

2 answers:

vlabodo [156]2 years ago

8 0

Answer:

no. a function doesnt contain an = sign

Step-by-step explanation:

emmainna [20.7K]2 years ago

6 0

Answer:

Yes, it is a function.

Explanation:

xy + 6y = 9

y(x + 6) = 9

y = 9/(x + 6)

It is a inverse variation function.

Where equation: xy = k ["k" is constant]

<h3>Each value of x corresponds to a single value of y.</h3>

You might be interested in

Four ponds of banana cost $6 what is the cost per pound of bananas

vodomira [7]

Answer:

1.50

Step-by-step explanation:

6÷4=1.50, 1.50×4= 6.00

3 0

3 years ago

Read 2 more answers

Tim earns $280 every week in his paycheck. If he saves 10% of each

Alex73 [517]

Answer:

336

Step-by-step explanation:

10 times 280 over 100 equals 28 time 12 equals 336

6 0

3 years ago

Please help me <br><br>If 180°<α<270°, cos⁡ α=−8/17, what is sin -α?

rewona [7]

Starting from the fundamental trigonometric equation, we have

$\cos^2(\alpha)+\sin^2(\alpha)=1 \iff \sin(\alpha)=\pm\sqrt{1-\cos^2(\alpha)}$

Since $180$ , we know that the angle lies in the third quadrant, where both sine and cosine are negative. So, in this specific case, we have

$\sin(\alpha)=-\sqrt{1-\cos^2(\alpha)}$

Plugging the numbers, we have

$\sin(\alpha)=-\sqrt{1-\dfrac{64}{289}}=-\sqrt{\dfrac{225}{289}}=-\dfrac{15}{17}$

Now, just recall that

$\sin(-\alpha)=-\sin(\alpha)$

to deduce

$\sin(-\alpha)=-\sin(\alpha)=-\left(-\dfrac{15}{17}\right)=\dfrac{15}{17}$

6 0

3 years ago

Read 2 more answers

Given the diagram below, find the measure in degrees of angle b & angle c

kifflom [539]

The answer is B=34,C=68

8 0

3 years ago

Evaluate 2b^2 − 4a + 4a^2 for a = 3 and b = −8.

kipiarov [429]

(2*(-8)^2)-(4*3)+(4*3^2)

128-12+36

152

6 0

3 years ago