Answer:
7
Step-by-step explanation:
45/9 = 5
12 - 7 = 5
Correct me if i'm wrong but i think the best answer choice would be B.
Answer:
e = 6
Step-by-step explanation:
→ Mnus 31 from both sides
4e = 24
→ Divide both sides by e
e = 6
Height of a trapezoid:
h = 5 · sin 80° = 5 · 0.985 = 4.924
x = 5 · cos 80° = 5 · 0.17365 = 0.868
7 - x = 7 - 0.868 = 6.132
By the Pythagorean theorem:
d² = 6.132² + 4.924²
d² = 37.6 + 24.25
d² = 61.85
d = √61.85
d = 7.86 ≈ 8
Answer: The length of a diagonal brace is 8 feet.
