Answer:
A. 10x^2 +53x +63
B. degree 2; quadratic trinomial
C. the result of the multiplication of polynomials is a polynomial
Step-by-step explanation:
<h3>Part A:</h3>
The area is the product of length and width. The distributive property is useful for simplifying the expression.
A = LW
A = (2x +7)(5x +9) = 2x(5x +9) +7(5x +9)
A = (10x^2 +18x) +(35x +63)
A = 10x^2 +53x +63 . . . . area expression
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<h3>Part B:</h3>
The highest power of x is 2. There are 3 terms. A degree-2 polynomial is called a "quadratic." A 3-term polynomial is called a "trinomial."
- degree 2
- quadratic trinomial
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<h3>Part C:</h3>
In part A we multiplied two polynomials and came up with a result that is a polynomial. This suggests polynomials are closed with respect to multiplication.
Answer:
Step-by-step explanation:
Since your population are the students in math class, you can use the z-score formula in order to comparing the two math test scores. Where is the mean for the class, is the standars deviation and x is Mary score.
For the first test , so ,.
For the second test , so ,
Mary do better in the second test, relative to the rest of the class (because , it means the second score is nearer to the mean score of the class than the first one )
Answer:
or decimal form 23.23790007...
Step-by-step explanation:
Rewrite 540 as * 15
Factor 36 out of 540 .
Rewrite 36 as .
Pull the terms out from under the radical.
Answer:
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Step-by-step explanation: