Answer:
x = 25
Step-by-step explanation:
Multiplying both sides by 5 (to get rid of the denominator) gives us:
x / 5 * 5 = 5 * 5
x = 25
Answer:
B
Step-by-step explanation: If you put 7 2/5 - 5/8 in a calculator it comes to equal 6.775. Since the answer is asking for an estimate then the answer would be 7.
Sin angle that equals the 1/2 value is the 30 degree on the 1st Quadrant.
The angle of 30 degree on the 3rd Quadrant is equivalent to (formula and circle in the 1st photo) 180 + 30 = 210°.
So theta = 210° (3rd Quadrant) = 30° (1st Quadrant).
Now just transfer the cos 30° to the 3rd Quadrant and the signal will be negative (as shown in the 2nd photo attached).