It makes studying more efficient
Well inequality, with race can bring inequality
Answer: Give audible warning with the motor vehicles horn upon approaching any curve where the view is obstructed within a distance of 200 feet along the highway. (Option D)
Explanation:
In addition to that, you should stay to the right and wait for the vehicles to pull over, and only pass until and unless you are sure that there is no vehicle nearby. Be cautious while driving and drive extra slow to avoid accidents.
It’s a homework routine. hope this wasn’t too late :)
Part A:
Side 1 + side 2 + side 3 = 11z2 - 4z +2 - 2z + 3 + 12z2 + 3 - 3z + 13z2
= 11z2 + 12z2 + 13z2 - 4z - 2z - 3z + 2 + 3 + 3
= 36z2 - 9z + 8
Part B:
The parameter of the trapezoid is the summation of the lengths of its four sides, thus:
Side 4 = Parameter - (side 1 + side 2 + side 3)
= Parameter - output of part A
= 5z3 + 40z2 + 7z - 15 - (36z2 - 9z +8)
= 5z3 + 40z2 - 36z2 + 7z + 9z - 15 - 8
= 5z3 + 4z2 + 16z - 23
Part C:
For a polynomial to be closed under addition and subtraction operations, the performance of these operations on the polynomial should give a new polynomial.
Since the addition in Part A and the subtraction in Part B both resulted in new polynomials, thus, the answers of these two parts show that polynomials are closed under addition and subtraction.