Answer:
Step-by-step explanation:
<em>Refer to attached picture</em>
- The height = h
- Angles of elevation 22.6° and 38.3°
- Closer distance = d
<u>Use tangent to solve</u>
- tan 22.6° = h/(d + 17) ⇒ h = (d + 17) tan 22.6° ⇒ h = 0.42(d + 17)
- tan 38.3° = h/d ⇒ h = d tan 38.3° ⇒ h = 0.79d
<u>Compare the equations above and find the value of d:</u>
- 0.42(d + 17) = 0.79d
- 0.42d + 7.14 = 0.79d
- 0.79d - 0.42d = 7.14
- 0.37 d = 7.14
- d = 7.14/0.37
- d = 19.3 m
<u>Now find the value of h:</u>
- h = 0.79d
- h = 0.79*19.3
- h = 15
Wave Rock is 15 m tall
Answer:
5/6
Step-by-step explanation:
5/10 + 2/6
First find the common denominator by multiplying 5/10 by 3/3
5/10*3/3=15/30
Then to get to that same denominator multiply 2/6 by 5/5
2/6*5/5=10/30
Answer:
15/30+10/30= 25/30
Then divide 25/30 by 5/5
25/30 / 5/5 = 5/6
Since 19 is a prime number it only goes into 1 and 19 so 1 times 19 is the only possible answer
Answer:
None of the above
Step-by-step explanation:
15/45=1/3
Answer:
Step-by-step explanation:
C stands for circumference of the circle.