I have the same question so confused
Answer:
1) b
2)d
3)a
Step-by-step explanation:
1) count the number of different betwwen 2 cycles
2) take 5/160 time 8
3) take 12/9.6 then times 6.4
Answer:
m∠D = 32°
Step-by-step explanation:
From the figure attached,
In ΔABE,
By the property of a triangle,
m∠AEB + m∠ABE + m∠AEB = 180°
14° + 45° + m∠AEB = 180°
m∠AEB = 180° - 59°
m∠AEB = 121°
Since, m∠AEB = m∠CED = 121° [Vertical angles]
Similarly, in triangle CDE,
m∠ECD + m∠CED + m∠EDC = 180°
27 + 121 + m∠CDE = 180
m∠CDE = 180 - 148
m∠D = 32°
<h3>
Answer: 24pi feet</h3>
Work Shown:
The area is 144pi square feet. So A = 144pi is plugged into the formula below to isolate r
A = pi*r^2
144pi = pi*r^2
144 = r^2 .... divide both sides by pi, the pi terms cancel
r^2 = 144
r = sqrt(144) ... take the square root of both sides
r = 12
This is plugged into the circumference of a circle formula
C = 2*pi*r
C = 2*pi*12
C = 2*12*pi
C = 24pi
This is approximately equal to 75.36 when you use the approximation pi = 3.14
Answer:
1. x = 40°
2. 4x - 25 = 135°
3. x + 5 = 45°
Step-by-step explanation:
1.
<u><em>According to the figure and since m//n then </em></u>
<u><em>The two angles of measures (respectively) 4x - 25 and x + 5 are supplementary .</em></u>
Then
4x - 25 + (x + 5) = 180°
Then
5x - 20 = 180
Then
5x = 200
Then
x = 200/5
Then
x = 40°
……………………
2.
x = 40
Then
4x - 25 = 4(40) - 25 = 160 - 25 = 135°
…………………………………………………………
3.
x = 40
Then
x + 5 = 40 + 5 = 45°