The lengths of 3 pieces of wire are in the ratio of wire are in the ratio 10: 15: 8 if the length of the shortest piece of wire is 2.4m find the difference between the length of the other two

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

Can someone me with my math problem pls my teacher is on my back about this

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0