Answer: d
Step-by-step explanation:
Note that the distance to the tower and the height of the tower create a right triangle at the base of the tower. The equation to find the height of a right triangle is to multiply the length times the tangent of angle β.
Given:
b = a · tanβ
tan(30°) = √3/3
Step 1: Solve
b = (30/1) · (√3/3)
b = (30 · √3) / (1 · 3)
b = (30√3) / (3)
b = 10√3
Answer: x = 16
Step-by-step explanation:
2(x - 6 ) = 20 Apply the distributive property
2x - 12 = 20 Add the 12 to both sides
+12 +12
2x = 32 Divide both sides by 2
x = 16
y=47.38+.617x
130 = 47.38+.617x
subtract 47.38 from each side
82.62=.617x
divide by .617 on each side
133.906 =x
to the nearest minute x=134
Answer Choice C
It’s a 90 degree angle. So the equation so be 28+2x =90 and find x from there.
28+2x=90
-28 -28
2x= 62
x=31