Use Descartes' Rule of Signs to find the number of possible positive real roots and the number of possible negative real roots for the function f(x) = x^4+ 2x^3-3x^2- 8x - 4. a positive 1; negative 3 or 1

b. positive 1; negative 3 or 5

C. positive 3; negative 3 or 1

d. positive 3; negative 3 or 5

a.positive 1; negative 3 or 1

Step-by-step explanation:

EDGE 2020

answer: 0.95, d

step-by-step explanation:

first, you have to combine the percentages of costumers ordering pizza or salad. 25% (percent of salads ordered) plus 70% (percent of pizzas ordered) is equal to 95%. then, turn 95% into a fraction: 95/100. lastly, divide 95 by 100 and you will get 0.95, d.

c is the correct answer

step-by-step explanation: