Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 7)(x2 + 1)
A. 0, touches the x-axis and turns around;
-7, crosses the x-axis;
-1, crosses the x-axis;
1, crosses the x-axis;
B. 0, touches the x-axis and turns around;
-7, crosses the x-axis
C. 0, touches the x-axis and turns around;
7, crosses the x-axis
D. 0, touches the x-axis and turns around;
-7, crosses the x-axis;
-1, touches the x-axis and turns around
Answer: B
You might also like to view...
Find the mean for the given frequency distribution.
A. 27.9 B. 6.8 C. 23.3 D. 24.6
Find the reciprocal.0
A. 0
B. 0 has no reciprocal.
C. -1
D. 
Solve the problem.Newton's Law of Cooling states that the temperature of a heated object decreases exponentially over time toward the temperature of the surrounding medium. Suppose that a coffee is served at a temperature of 132°F and placed in a room whose temperature is 70°F. The temperature ? (in °F) of the coffee at time t (in minutes) can be modeled by ?(t) = 70 + 62e-0.08t. When will the temperature be 105°F?
A. 3.6 minutes B. 2.9 minutes C. 1.5 minutes D. 7.1 minutes
Use a calculator to approximate the root to the nearest thousandth.-
A. -3.254 B. -3.246 C. -3.236 D. -3.268