2 years ago

Describe a way that someone could estimate a length of a book

Mathematics

1 answer:

o-na [289]2 years ago

8 0

Look at the height and width of the book

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Using the numbers -4, 10, 8, 2, -3, -5, create two expressions that<br> equal 6.

blondinia [14]

Expressions:

10 + (-4)
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8 0

3 years ago

Find in degrees the numeric value of the acute angle of rotation that eliminates the product term from the equation 7x2+24xy−34x

lutik1710 [3]

Rotating the graph of $Ax^2+Bxy+Cy^2+Dx+Ey+F=0$ with $B\ne0$ counterclockwise by $\theta$ eliminates the $xy$ term, where $\cot2\theta=\frac{A-C}{B}.$ Plugging in, we have $\cot2\theta=\frac{7}{24},$ since $C=0.$ Solving, we have $\theta=\frac{1}{2}\cot^{-1}(\frac{7}{24})\approx\boxed{36.9^\circ}.$