3. Rule: -2x
(-8,16)
(7,-14)
4. Rule: 8x+1
(3,25)
(3,25)
(4,33)
The answer is A, because it has the same value as the square root of 550.
Answer:
-5 19/25, 1/20, 34/40, 5 14/40
Step-by-step explanation:
The negative is the least because it is the furthest left on the number line followed by 1/20 because 1/20 is equal to 2/40. 2/40 is less than 34/40, which is next because 5 14/40 has a integer in the ones place.
cos(-240°) = cos 120°; the "adjacent sides" and the "hypotenuses" are the same in both cases. The supplement of 120° is 60°, and 60° is a positive acute angle. Since cos(-240°) is negative, we need to write
cos(-240°) = -cos(60°).
Check: cos(60°)= 1/2, so - cos(60°) = -1/2, which is the value of cos(-240°).
Wouldn’t you just subtract 2 from 2?