Lewis Harvey
2021-01-23
Answered

equilaterat triangle has sides of 20 to nearest tenth what is altitude of triangle

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pierretteA

Answered 2021-01-24
Author has **102** answers

the altitude of the triangle is 17.3

asked 2020-11-26

Match each of the trigonometric expressions below with the equivalent non-trigonometric function from the following list. Enter the appropriate letter(A,B, C, D or E)in each blank

A .$\mathrm{tan}\left(\mathrm{arcsin}\left(\frac{x}{8}\right)\right)$

B .$\mathrm{cos}\left(ar\mathrm{sin}\left(\frac{x}{8}\right)\right)$

C.$\left(\frac{1}{2}\right)\mathrm{sin}\left(2\mathrm{arcsin}\left(\frac{x}{8}\right)\right)$

D.$\mathrm{sin}\left(\mathrm{arctan}\left(\frac{x}{8}\right)\right)$

E.$\mathrm{cos}\left(\mathrm{arctan}\left(\frac{x}{8}\right)\right)$

A .

B .

C.

D.

E.

asked 2021-05-31

Find an equation of the plane. The plane through the points (2, 1, 2), (3, −8, 6), and (−2, −3, 1)

asked 2021-05-19

Find the point on the line

asked 2022-01-16

Proving $\frac{1}{{(\mathrm{tan}\left(\frac{x}{2}\right)+1)}^{2}{\mathrm{cos}}^{2}\left(\frac{x}{2}\right)}=\frac{1}{1+\mathrm{sin}x}$

asked 2021-03-05

Find the perimeter of the triangle.

asked 2022-01-21

What is the inradius of the octahedron with sidelength a?

1) Determine the height of one of two constituent square pyramids by considering a right triangle, using the fact that the height of the equilateral triangle is

2) Now cut the (solid) octahedron along 4 of these latter heights, i.e. across two non-adjacent vertices and two midpoints of parallel sides of the ''square base''. (Figure 1)

Consider the resultant rhombic polygon, whose sidelength is

So the question becomes: Is there a still simpler proof?

asked 2022-01-03

How do you solve $5{\mathrm{sin}}^{2}\left(x\right)+8\mathrm{sin}x\mathrm{cos}x-3=0$ ?

I have tried using compound angle, sum to product, pythag identities but nothing seems to work. I tried turning it into$\mathrm{sin}2x$ but then I have ${\mathrm{sin}}^{2}x$ and $\mathrm{sin}2x$ together.

I have tried using compound angle, sum to product, pythag identities but nothing seems to work. I tried turning it into