Suppose that to find the length of the base of a triangle, you write a quadratic equation and solve it to find b = 7 or b = -8. Explain why one solution should be discarded. (Select all that apply.) O Only positive numbers make sense in this context. O It is impossible to have negative solutions for a quadratic equation. O The side of a triangle cannot have a negative length. O Substituting a negative solution back into a quadratic equation does not check. O Seven is too large of a base of a triangle.
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
![Suppose that to find the length of the base of a triangle, you write a quadratic equation and solve it to find b = 7 or b = -8. Explain why one solution should be discarded. (Select all that apply.)
Only positive numbers make sense in this context.
It is impossible to have negative solutions for a quadratic equation.
The side of a triangle cannot have a negative length.
Substituting a negative solution back into a quadratic equation does not check.
Seven is too large of a base of a triangle.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc93732b2-eae0-4627-a7be-7cdc2751ad5d%2F38cfe1f1-dad8-4891-a418-964a4ccc78de%2Fr7iwmk9_processed.png&w=3840&q=75)
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