A.
338 pounds
B.
104 pounds
C.
39 pounds
D.
2 pounds
Answer:
338 pounds
Step-by-step explanation:
True Or False?
B. 55.9%; decrease
C. 90%; decrease
D. 76.5%; increase
13
5
B
12
?
tan(B) =
Enter
Answer:
tan B = 5/12
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan theta = opp side/ adj side
tan B = 5/12
A. 840
B. -180
C. 480
2) Use the unit circle and the reference angle to determine which of the following trigonometric values is correct when theta = -90
A. Cos theta = undefined
B. Sin theta = -1
C. Tan = 0
Answer:
1. B.
2. B.
Step-by-step explanation:
Trigonometry
1) Coterminal angles can be found by adding or subtracting 360° (or 2\pi radians) to a given angle. If we have 120°, adding 360° gives 480°, adding again 360° gives 840°. There is no way to get -180°, so this option is not a coterminal angle to 120°
2)
A. , and not undefined
B. . This is correct
C. is undefined, not zero
Thus the only correct option is B.