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2 years ago

Please hurry and I will give you brainlest if your show your work

Mathematics

1 answer:

zloy xaker [14]2 years ago

7 0

Answer:

The constant of proportionality is 2.

Step-by-step explanation:

All the y values are twice as much as the corresponding x values

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Two stores offer customers bulk DVD rates. Best Buy sells 6 CDs for $63 and Target sells 8 CDs for $96. Write the unit price for

Andrew [12]

Answer:

96÷8=12 so it wold be $12 per CD AND 63÷6=10.5 there for making the CD $10.5 making Best Buy your answe

4 0

3 years ago

Simplify sin Θ/√1-sin^2 Θ

dedylja [7]

If you're using the app, try seeing this answer through your browser: brainly.com/question/2862279

_______________

Simplify the trigonometric expression.

Call the expression E:

$\mathsf{E=\dfrac{sin\,\theta}{\sqrt{1-sin^2\,\theta}}\qquad\qquad(but~~1-sin^2\,\theta=cos^2\,\theta)}\\\\\\
\mathsf{E=\dfrac{sin\,\theta}{\sqrt{cos^2\,\theta}}}\\\\\\
\mathsf{E=\dfrac{sin\,\theta}{\left|cos\,\theta\right|}}}$

$\mathsf{E}=\left\{\!\begin{array}{rl}\mathsf{\dfrac{sin\,\theta}{cos\,\theta}\,,}&\mathsf{\quad if~~cos\,\theta>0}\\\\\mathsf{\dfrac{sin\,\theta}{-\,cos\,\theta}\,,}&\mathsf{\quad if~~cos\,\theta$

So basically E is equivalent to $\pm\,\mathsf{tan\,\theta},$ where the sign depends on which quadrant $\theta$ lies. Shortly,

$\mathsf{\dfrac{sin\,\theta}{\sqrt{1-sin^2\,\theta}}}=\left\{\!
\begin{array}{rl}
\mathsf{tan\,\theta,}&\mathsf{\quad if~\theta~lies~either~in~the~1^{st}~or~the~4^{th}~quadrant}\\\\
\mathsf{-\,tan\,\theta,}&\mathsf{\quad if~\theta~lies~either~in~the~2^{nd}~or~the~3^{rd}~quadrant}
\end{array}$

I hope this helps. =)

Tags: <em>simplify trigonometric trig expression sine cosine tangent sin cos tan absolute value modulus trigonometry</em>

4 0

3 years ago

Read 2 more answers

One electrician charges his customers a $60 service fee plus $35 per hour.

gavmur [86]

Answer:

2 hours; $130

Step-by-step explanation:

We can do this by setting up an equality since we are finding when they are the same. Say x is the number of horus:

65 * x = 60 + 35* x

30 * x = 60

x = 2 hours

The cost will be the same at two hours, and plugging it in, we can get 65*2=130.

5 0

2 years ago

An employee at a company that assembles chandeliers is packing boxes for shipping. In the first box, he packed 5 small chandelie

valkas [14]

Answer:

Step-by-step explanation:

5 0

3 years ago

HELPP PLEASE WILL GIVE BRAILIEST

Nina [5.8K]

Answer: 81 - 74 = 7

Have a great day!

7 0

3 years ago