Evaluate. 102 ÷ 25 • 20 + 4 ÷ 2 – 14 (2 in 102 is an exponent)evaluate.  5 • [(14 + 3 • 30) + 120] + 103 – 10(3 in 103 is the exponent

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

Amanufacturer knows that their items have a normally distributed lifespan, with a mean if 9.1 years, and standard deviation of 2.9 years. if you randomly purchase one item, what is the probability it will last longer than 10 years?