Answer:
Step-by-step explanation:
Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level.
The confidence interval of mean
=32.9 ± 1.96 × 6.9/250
Confidence Interval = 32.9 ± 0.5382
The answer to this question is the second choice, SOMETIMES, because there are those systems of linear equations that the lines are parallel and do not intersect therefore has no solution. There are also other systems representing the same line and has therefore infinite number of solutions.
Answer:
Angles 1 & 2 are vertical angles, and angles 3 & 4 are adjacent angles.
Step-by-step explanation:
Vertical angles are angles across from each other. Adjacent angles are always beside each other.
It's not a linear pair because a linear pair is adjacent angles that add up to 180°, which is not true for your 2 angles in the picture. Hope this helps!!!
Answer:
7/3 minutes
Step-by-step explanation:
The speed if the runner is given by:
We have that: speed =3/8 miles per minute and distance =7/8 miles
We substitute into the formula to get:
This simplifies to
Therefore it will take 7/3 miniutes to finish the race.
