Determine if the number is written in scientific notation. if not explain 5.6 x 10^12
2 answers:
Answer:
C. Yes, the number is written in scientific notation.
Step-by-step explanation:
We have been given a number . We are asked to determine whether our given number is written in scientific notation or not.
We know that when a number greater than 1 and less than 10 is multiplied by a power of 10, then the number is written in scientific notation.
Upon looking at our given number we can see the number 5.6 is between 1 and 10. In addition, 5.6 is being multiplied by 10 to the power 12.
Therefore, our given number is written in scientific notation and option C is the correct choice..
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Answer:
y = 5cos(πx/4) +11
Step-by-step explanation:
The radius is 5 ft, so that will be the multiplier of the trig function.
The car starts at the top of the wheel, so the appropriate trig function is cosine, which is 1 (its maximum value) when its argument is zero.
The period is 8 seconds, so the argument of the cosine function will be 2π(x/8) = πx/4. This changes by 2π when x changes by 8.
The centerline of the wheel is the sum of the minimum and the radius, so is 6+5 = 11 ft. This is the offset of the scaled cosine function.
Putting that all together, you get
... y = 5cos(π/4x) + 11
_____
The answer selections don't seem to consistently identify the argument of the trig function properly. We assume that π/4(x) means (πx/4), where this product is the argument of the trig function.
