PLEASE HELP! Rewrite the radical expression as an expression with a rational exponent.

the fourth root of seven to the fifth power

seven to the five fourths power
x20
x
seven to the four fifths power

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean