Answer:
r=4
Step-by-step explanation:
Hi, I'm happy to help!
Parallel means that two lines are lined up in the same directions and will never intersect even if they were extended forever in directions.
Let's look at the first option of AB, and AD. We can see that both lines intersect at point A, so AB and AD are not parallel.
For the next option of CD and BE, we can see that both lines don't intersect and won't ever even if the lines were extended. So, CD and BE are parallel.
For the third option, we have BC and DE. These lines don't intersect and aren't in line to ever do so. Therefore, BC and DE and parallel.
The last option is AD and BC. These two lines will never meet, but, they aren't line up in the same directions. AD is traveling upwards while BC isn't. Think about being able to make a road out of the two lines, it would never work. AD and BC are not parallel.
<u>To sum it up: You should select the 2nd and 3rd options because those lines are parallel.</u>
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I hope this was helpful, keep learning! :D
Let t be the time passed in years and y be the value of baseball card.
You know that
- when x=0, then y=2;
- when x=5, then y=25;
- when x=10, y=8.
The equation in standard form is 
Substitute given data into the equation:
Solve the system of equations:
Then the parabola equation is
Answer:
182
Step-by-step explanation:
2( \frac{1}{2} \times 4 \times 6 ) + 2( 5 \times 10 ) + ( 6 \times 10 )
= {182cm}^{2}
Answer: 99% confidence interval would be 
Step-by-step explanation:
Since we have given that
Sample size = 30
Sample mean = $1450
Standard deviation = $220
We need to find the 99% confidence interval.
So, z = 2.58
So, confidence interval would be
Hence, 99% confidence interval would be
