I think you're talking about the black spot on the surface of the Earth,
where the end of the Moon's shadow falls, and anybody inside that
circle sees the Sun completely covered for a few minutes.
The size of that spot varies. It depends on exactly how far the Moon
is from the Earth, and exactly how far both bodies are from the Sun.
The longest possible totality viewed from a single location is about
7-1/2 minutes, when all the geometry is just right. Then, I believe,
the black spot on the Earth's surface is something like 170 miles
across, moving at around 24 miles a minute, or 1,460 miles per hour.
If A=Aiden’s weight and J=Jacob’s weight, so A=J-39 or J=A+39.
J>100 so A+39>100, and A>61 pounds.
A+J>>61+100, A+J>>161. Or, A+J=2J-39=2A+39>161.
If A=62, J=101, so A+J=163 pounds.
Therefore we can say their combined weights will 161 pounds, and 163 pounds would be a typical weight.
The greatest common factor of both numbers is 6 so you would take out that 6 since both of those numbers can be multiplied by it. So, your answer would be 6(5x+1) and if you multiply that 6 back in, you will go back to the original equation.
Answer:
a. no, there are no sufficient data to use
b. assumption b is right
Step-by-step explanation:
a. for the standard deviation to be calculated at 99% confidence, the data needed should be the mean (given), the variate value to be calculated for(not given), the standard deviation(not given), the z value of the normal distribution ( not given),
since there are too many unknown, the data given are not sufficient to calculate.
b. validity of this interval requires that coating layer thickness be at least approximately normally distributed.
Answer:
7:2
7/2
Step-by-step explanation:
7:2 is also equivalent to 7/2
