Answer:
8.5
Step-by-step explanation:
0.25 in : 12 ft
12 ft → 0.25 in
1 ft → 0.25/12
15 ft → 0.25/12 x 15 = 0.31 inches (nearest inch)
Answer: 0.31 inch
Answer:
Step-by-step explanation:
15/24 5/x
cross multiply
15x=120
x=8
Answer:
(√3)/2 -1 ≈ -0.133974596
Step-by-step explanation:
2sin²(30°)tan(60°) -3cos²(60°)sec²(30°)
= 2(1/2)²(√3) -3(1/2)²(2/√3)²
= 2(1/4)√3 -3(1/4)(4/3)
= (√3)/2 -1 ≈ -0.133974596