At which value in the domain does f(x)=0?
•x=-3
•x=0
•x=1
•x=4
PLEASE HELP

Nine more than four times a number is the same as one less than twice the number. find the number?

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.