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:
x=-2/3+2y/9-3y=8
Step-by-step explanation:
solve the equation for y
y=-6
put y=-6 into the equation x=-2/3+2/9×(-6)=-2
(x,y)=(-2,-6)
Answer:
(5, 10)
Step-by-step explanation:
If AP : PD = 2 : 1, then ...
P = (2D +1A)/(2+1)
P = (2(7, 13) +(1, 4))/3 = (14+1, 26+4)/3 = (5, 10)
The coordinates of point P are (5, 10).
Answer:
The answer is D. A regular octagon has only four lines of symmetry.
Step-by-step explanation:
Answer:
100 for 6 years a 6 mnt i.r of 8%
100×6÷12
=50
50÷12×6
25 of 8%
25×8÷100
2 ans..