Answer:
1.8
18
Step-by-step explanation:
![(3 \times 6) = 10 \times 1.8 = 18](https://tex.z-dn.net/?f=%283%20%5Ctimes%206%29%20%3D%2010%20%5Ctimes%201.8%20%3D%2018)
Answer:
no solution
Step-by-step explanation:
Answer:
Step-by-step explanation:
In Problem 6, 3/x = tan 30 degrees, or x/3 = 1 / (tan 30 degrees), or
x = 3 / (tan 30 degrees). Using a calculator: x = 3 / (0.449) = 6.68 units
In Problem 9, we begin by finding the length of the hypotenuse of the upper triangle: sin 60 degrees = 9√3 / hypotenuse, or
hypotenuse = 9√3/ (√3 / 2) = 9/2. Then the hypotenuse of the 45-45-90 triangle is 9/2. Thus, cos 45 degrees = x / (9/2), or
2x √3
---- = -------
9 2
9√3
Cross-multiplying, we get 4x = 9√3, so that x = -------------
4
40,000 divided by 10 is 4,000