Answer:
i did not get that
Step-by-step explanation:
Answer:
A. 56.52 cm
Step-by-step explanation:
Formula:
Circumfrence= 2πr
r (radius) = 9 cm
C = 2πr
C = 2 x 3.14 x 9 cm
C = 6.28 x 9 cm
C = 56.52 cm
Circumfrence is 56.52 cm
The pair of angles from the given options that are a pair of alternate exterior angles is:
C. ∠2 and ∠8
What are Alternate Exterior Angles?
Alternate exterior angles are pairs of exterior angles that lie alternate to each other along a transversal that cuts across two parallel lines.
Thus, in the image given, we have the following alternate exterior angles:
∠2 and ∠8
∠1 and ∠7
Therefore, the pair of angles from the given options that are a pair of alternate exterior angles is:
C. ∠2 and ∠8
the complete question is
Which angle are a pair of alternate exterior angles
A. Angle 4 and angle 6
B. Angle 3 and angle 6
C. Angle 2 and angle 8
D. Angle 1 and angle 5
Learn more about alternate exterior angles :
brainly.com/question/26111088
#SPJ4
The correct answer is (A.)hope this helps :)
9514 1404 393
Answer:
a) 320 m
b) 4.838 seconds, or 11.162 seconds
Step-by-step explanation:
a) S(8) = -5(8^2) +80(8) = -320 +640 = 320
The height 8 seconds after takeoff will be 320 meters.
__
b) S(t) = 270
270 = -5t^2 +80t
-54 = t^2 -16t . . . . . . divide by -5
10 = t^2 -16t +64 . . . . add 64
±√10 = t -8 . . . . . . . . . . take the square root
t = 8 ±√10 ≈ {4.838, 11.162}
The rocket will be at a height of 270 meters at 4.838 and 11.162 seconds after takeoff.