Explain what equilateral, isosceles and scalene triangles are.
Equilateral: A triangle with all equal sides and all equal angles. (Note: The inner angles individually will always be 60 degrees; it can never have a right angle and is always an acute triangle.) Isosceles: A triangle with two sides of equal length and two equal angles. Scalene: A triangle with no equal sides or angles.
Name the three parts of an atom and their charges.
Proton; has a positive charge Neutron; has a neutral charge Electron; has a negative charge
First, multiply the first number in the first polynomial by both terms in the second polynomial. Be careful with the signs. Step 1: (2x)(x-4)= ((2x)(x))+((2x)(-4))= 2x^2-8x Second, do the same thing except using the second term of the first polynomial. Step 2: (3)(x-4)= ((3)(x))+((3)(-4))= 3x-12 Third, add both answers you found together. Step 3: (2x^2-8x)+(3x-12) Finally, add all parts with the same powers together. Step 4: -8x and 3x can be added. This results in -5x. The final answer then will be 2x^2-5x-12.