Answer:
The answer is
B. Compatible Numbers Strategy
Step-by-step explanation:
According to learnalberta "The compatible numbers strategy is a method of estimating computations by using "friendly" or "nice" numbers that can be easily calculated mentally. Compatible numbers can be used in estimating sums, differences, products and quotients."
So the closest number to 249 that can be divided by 12 is 240
240/12= 20
For this case we have that by definition of trigonometric relations that, the sine of an angle is equal to the opposite leg to the angle on the hypotenuse. So:
Clearing x:
Rounding off we have to:
Answer:
Option D
X-A=B
+A
X=A+B
i hope i helped you out
300 cm/s = (300*60*60/100000=10.8) km/h
