Final answer:
In the expression 3v+2u+5+9u, none of the statements given are true. The terms in the expression do not include any factors, coefficients, or constants as described in the options, so the correct answer is E. None of these are true.
Step-by-step explanation:
Regarding the expression 3v+2u+5+9u, let's evaluate the given statements:
- A. -3v is a factor: This statement is not true because in the context of the given expression, -3v is not multiplying the entire expression; 3v simply represents a term in the addition.
- B. -2u and 9u are like terms: This statement is misleading because in the expression we have 2u and 9u as like terms, not -2u and 9u.
- C. -3v is a coefficient: This statement is incorrect because the coefficient in the term is 3, not -3, and it is attached to the variable v.
- D. -5 is a constant: This statement is false, as there is no -5 in the expression. The constant in the expression is +5.
- E. None of these are true: This is the correct statement since all the other statements A to D are false concerning the expression 3v+2u+5+9u.
Therefore, the correct answer is E. None of these are true.