Which operation is NOT closed for polynomials?

A) - (x2 + 4x + 5) (8x2 + 3x + 4)

B) (7x2 + 2x + 3) + (3x2 - 5x + 4)

C) (x2 + 2x + 5) - (x2 - 2x + 9)

D) (x3 + 4x - 5) / (x5 - 2x + 2)

At 3:25 p. m., two trains left Kalamazoo, Michigan. One train traveled westward at a constant rate of 82 miles per hour, while the other traveled eastward at a constant rate of 66 miles per hour. If they are now 11 miles apart, what time is it now?

There is a 20% chance it will rain on Thursday and a 0.75 chance s tornado will form from that storm. What are the chances there will be rain, but no tornado?

What are the prime factorization of 132 using exponents

The perimeter of a triangle is 86 inches. The largest side is four inches less than twice the smallest side. The third side is 10 inches longer than the smallest side. What is the length of each side?

1.5 times 27 minus 3

Prove that the value of expression 97+312 is divisible by 90.

Steve ordered Plastic cases for storing his baseball cards each case has a length of 12 cm a width of 6.5 cm and a height of 1.25 cm what is the volume in cubic centimeters of one baseball card case

Zareen has 24 minutes to work on her math homework, and each problem is taking her 2/3 of a minute, on average, to complete. Which expression can be used to determine the number of math problems she will be able to complete in the time she has?

Graph the linear inequality. y < 4x-3

Question 13 of 20 : Select the best answer for the question. 13. Subtract [4 - 4 - 2] - [4 - 3 5]. A. [0 - 1 7] B. [0 - 1 3] C. [0 - 1 - 7] D. [0 - 7 3]