Answer:
690 km per hour
Step-by-step explanation:
4830 divided by 7 is 690 km per hour
Answer:
80v
Step-by-step explanation:
Multiply the numbers: 12 * 4 = 48
=48v + 8 * 4v
Multiply the numbers: 8 * 4 = 32
=48v + 32v
Add similar elements: 48v + 32v = 80v
Answer: 80v
Answer:
Step-by-step explanation:
sheeeeeeesh
The cosine repeats itself every 360 degrees, and it mirrors at 0 and 180 degrees. It inverts around 90 and 270.
So without using a calculator, you can tell that:
cos(520)=cos(520-360)=cos(160)
cos(160) = cos(180-20) = cos(180+20) = cos(200)
cos(160) is NOT equal to cos(20), it would be -cos(20).
cos(160) = -cos(20) = -cos(-20)
So C is the only one unequal.
