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3 years ago

I don't understand!What do i put?!

Mathematics

1 answer:

Serggg [28]3 years ago

8 0

1 x 70
2 x 35
5 x 14
7 x 10.

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FREE 100 POINT HAVE A GOOD CHRISTMAS :)

Kaylis [27]

Answer: Thank you so much you too have a wonderful Christmas!

Step-by-step explanation:

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3 years ago

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An empty box is shaped like a rectangular prism. The box has a base area of 9/10 square foot and a height of 1/3' foot. How much

sveticcg [70]

Answer: (A)

Packing material is required to fill the box = $\frac{3}{10} ft^{3}$

Step-by-step explanation:

The box is shaped like a rectangular prism

base area = 9/10 square foot

height = 1/3 foot

Volume of a prism = base area X Height

= $\frac{9}{10}X \frac{1}{3}=\frac{3}{10} ft^{3}$

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: simplify trigonometric trig expression sine cosine tangent sin cos tan absolute value modulus trigonometry

4 0

4 years ago

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Please help me (It's for a really important grade)

Sholpan [36]

Answer:

4/5

Step-by-step explanation:

Sin = Opposite / Hypotenuse

Note that hypotenuse = longest side

We want to find sinФ

The opposite side length of angle "Ф" has a length of 8 and the longest side or hypotenuse has a length of 10

So sinФ would equal 8/10 which can be simplified to 4/5

7 0

3 years ago

A shipping company charges 15 to ship a package and 5% of the shipping charge for insurance on the package what is the total cos

ddd [48]

The total cost of shipping a package with the cost of $15 exclusive if 5% insurance is 15.75 dollars. This is calculate by getting first the 5% of 15 dollars, 15 dollars multiplied by 5%, equal to 0.75 dollars. Then it will be added to the shipping cost of 15, which is equal to 15.75 dollars.

4 0

3 years ago