Answer:
D
Step-by-step explanation:
We need the formula for arc length (in radians) to solve this problem. The formula is:
Where
s is the arc length
r is the radius of the circle
is the intercepted angle
In this diagram, we can see that is beign intercepted by the big arc with measure 20 cm. So arc length, s, is 20
Also, if we look, we see that the radius is 5 cm, so r = 5
Now, we substitute into formula and find :
This is given in radians, so is 4 radians
D is the correct answer choice.
1- B
2- C
3- B
4- D
5- D
6- C
7- B
8- C
9- C
10- C
Hope I helped you!!
I really think that I got them all right.. PLEASE tell me if I got any wrong so that I can change them :) Its been a while since I've done this... XD
Answer:
37°
Step-by-step explanation:
(4x + 2)° = 150° [Vertically Opposite Angles]
=> 4x = 150 - 2
=> 4x = 148
=><u> x = 37° (Ans)</u>
It takes 8 minutes
The robot can complete 7.5 tasks in an hour
Answer:
12x - 6
Step-by-step explanation:
8x - 3 + 4x - 3
12x - 6
x = - 2