Multiply the following using the vertical multiplication method: 3x2 - 5x+1
x2 + 2x + 4
A. 3x4 – x2 + 3x2 +18x + 4
B. 3x4 + x + 10x2 + x + 4
C. 3x4 + x2 + 3x2 - 18x+4
D. 3x4 + x2 +10x2 - 18x + 4

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?