Coterminal, first and foremost, means that it ends at the same point that another angle ends. So, we can say that angle M is equivalent to -620°. Now, we can all agree that a circle has 360° in it, so moving an angle 360° in either direction doesn't change where the angle ends, because it just moved one full trip around the circle, and is right back where it started. Overall, we need to put -620° in between 0° and 360° by adding 360° until it's between those two angles:
-620°+360° = -260°
-260°+360° = 100°
Now, 100° is between 0° and 360°, so we can say that angle M must be equal to 100°.
This type of situation applies first order type of equation. In this case, the equation is ln( A0/A1) = kt. A is the number of bacteria cultured. A0 is equal to 150. when A1 is 300, t is 20 minutes. that is ln (150/300) = k *20 the other condition is represented by ln (A0/1200) = 60k. k is equal to -0.0347. hence the first order equation is equal to ln (150/A1) = -0.0347 t
4:5 is the same as 4x:5x where 4x is compound A and 5x is compound B.
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Solve for "x":
If amount of compound A is 4x = 477
x = 477/4
Then amt of compound B is 5x = 5(477/4) = 596.25 ml
Step-by-step explanation:
I think the 2nd one is the correct
