What is (-7)^4 in scientific notation?

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

Which of the following values cannot be probabilities? 0.08, 5 divided by 3, startroot 2 endroot, negative 0.59, 1, 0, 1.44, 3 divided by 5 select all the values that cannot be probabilities. a. five thirds b. 1.44 c. 1 d. startroot 2 endroot e. three fifths f. 0.08 g. 0 h. negative 0.59

Combine like terms to make a simpler expression 3z+z