No product results in -1, hence δlmn is NOT a right triangle showing that lydia's assertion is incorrect
<h3>Perpendicular lines</h3>
In order to determine whether triangle lmn is right-angled, we need to determine the slope of lm, ln, and mn first as shown:
For the slope of lm:

For the slope of ln:

For the slope of mn:

- If any of the two lines is perpendicular, hence the triangle lmn is right-angled.
- To check, we will take the product of the slopes and see if it is equivalent to -1.
Product of slope lm and ln

Since no product results in -1, hence δlmn is NOT a right triangle showing that Lydia's assertion is incorrect
Learn more on slopes here: brainly.com/question/3493733
Health plans are the medical insurances that are used to cover medical bills or expenses. Using the standard plan she can pay $7,000, and using the economy plan $6,000.
<h3>What are economy and standard plans?</h3>
An economy plan is a health plan that covers the cost and the spending of the health care industry. To buy health care plans she needs to approach in-network doctors.
The standard plan is the health plan that pays approximately 60% of the total cost. The maximum out-of-pocket cost that is supposed to be paid in the standard plan is $7,000.
Therefore, economy and standard are the health care plans.
Learn more about economy plans here:
brainly.com/question/26217317
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Answer:
union membership increased .
Explanation:
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Stare at them and give them the look