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
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There are different kinds of functional group. The answer to the functional group, is below.
- (OH) Alcohol is one of the most polar and may act as a weak acid
- (COOH) Carboxylic acid serves as the acid.
- (C=O) Aldehyde: can be an isomer of a chemical ketone
- (S-H) Thiol usually transform to a disulfide bond
- (NH2) Amine serves to be the base of chemical compounds
- (PO4) Organic phosphate carries a negatively charged atom.
<h3>What is functional group ?</h3>
A functional group in organic chemistry is known to be a composition of atoms that is found inside a molecules that often bind together to react in certain ways.
The Examples of functional groups are the group hydroxyl, ketone, amine, and others.
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Stories could either have a single or multiple narrator(s). Hence, stories having multiple narrators would usually have a non-linear plot.
- Multiple narrators in a story means that characters in the story are numerous, hence, acts and scenes would have to be passed on to these characters from time to time.
- As for single narrator, this is not the case as the number of actors are very limited.
Hence, because multiple narrators often hinders a story to be chronologically ordered, then it would result in a non-linear plot.
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An unsaturated solution is formed when 80. Grams of a salt is dissolved in 100. Grams of water at 40. °c. This salt could be.
Solubility is the maximum amount of soluble solid that can be dissolved in a 100-gram of water at a specific temperature. The solubility of a compound is directly proportional to the temperature which means that more solids can be dissolved at a higher temperature. Moreover, a solution which has a concentration below its solubility is an unsaturated solution. When both concentration and solubility are the same, then the solution is saturated. Lastly, when the concentration of a solution is higher than the solubility at a specific temperature, then the solution is called supersaturated.
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Answer:
He combined the like terms 2y^2 and -3y^2 incorrectly.
Explanation:
2y^2 + (-3y^2) = -1y^2. Not -5y^2.