When two musical notes are a “sixth” apart, the frequency of the lower note is 3/5 the frequency of the higher note. Using f as the frequency of the higher note, write an expression for the frequency of the lower note. HELP! 1. f - 2/5

2. 3/5 f

3. 2/5 f

4. 3/5 + f

How many solutions does the nonlinear system of equations graphed below have?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.