Answer:
<u>56.5 ft</u>
Step-by-step explanation:
See the attached figure which represents the explanation of the problem.
We need to find the length of the tree to which is the length of AD
From the graph ∠BAC = 90° and ∠ABD = 76°, AB = 18 ft
At ΔABD:
∠BAD = ∠BAC - ∠DAC = 90° - 4° = 86°
∠ADB = 180° - ( ∠BAD + ∠ABD) = 180 - (86+76) = 180 - 162 = 18°
Apply the sine rule at ΔABD
∴
∴ 18/sin 18 = AD/sin 76
∴ AD = 18 * (sin 76)/(sin 18) ≈ 56.5 (to the nearest tenth of a foot)
So, The length of the tree = 56.5 ft.
<u>The answer is 56.5 ft</u>
Answer:
4 m/s²
Step-by-step explanation:
Acceleration = (106-70)/9
= 36/9
= 4ms^-2
Answer:
30
Step-by-step explanation:
The Pythagorean Theorem is c2 (c squared) = a2 (a squared) + b2 (b squared).
The side lengths (24 and 18) can be plugged in for a and b. C is the length of the hypotenuse.
24 Squared + 18 Squared= c squared
Use a calculator to help you.
24 squared is 576
18 squared is 324
So, 576+324=c squared
Simplify
900=c squared
Now use the squre root on both sides to get rid of the c squared. (use a calculator)
30=c
Answer
A≈7853.98cm²
Step-by-step explanation:
A=πr2=π·502≈7853.98163cm²
hope this helped
