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Answer: 5</h3>
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Explanation:
Let's consider the expression (x-y)^2. It expands out to x^2-2xy+y^2. The terms are:
Each of those terms either has a single variable with an exponent of 2, or has the exponents add to 2. Think of 2xy as 2x^1y^1.
In short, this means that the degree of each monomial term is 2.
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Now consider (x-y)^3. It expands out into x^3-3x^2y+3xy^2+y^3.
We have terms that either have a single variable and the exponent is 3, or the exponents add to 3. The degree of each term is 3.
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This pattern continues.
In general, for (x-y)^n, where n is any positive whole number, the degree of each term in the expansion is n. If you picked any term, added the exponents, then the exponents will add to n.
Answer:
Step-by-step explanation:
To solve the given quadratic equation you can apply the Quadratic formula, which is shown below:
Where:
Therefore, when you substitute values into the Quadratic formula shown above, you obtain the following solution:
The vertical angles have equal measures.
Therefore, if ∠ a and ∠b are vertical angles, then m∠a = m∠b.
Answer: m∠b = 115°
The critical values for a 90% confidence interval are approximately
, so the confidence interval in this case is roughly