Provide an appropriate response.Let A = 
and let B = 
.Does the matrix A + B have an inverse?
A. Yes
B. No
Answer: B
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Solve.Two forces of 620 and 410 N (newtons) act on an object. The angle between the forces is 57°. Find the magnitude of the resultant and the angle that it makes with the larger force.
A. 911 N, 22° B. 910 N, 22° C. 7 N, 22° D. 912 N, 22°
Provide an appropriate response.Use a graphing calculator to solve the equation 4x - 7 = 8x + 25.
A. -8 B. 0.375 C. 0 D. 8
For the given equation, determine the values of a, b, and c, the direction in which the parabola opens, and the y-intercept.f(x) = 7x2 + 3x + 9
A. 
B. 
C. 
D. 
Solve the problem.The table below gives the violent crime rate (per 100,000 people) for a particular state every five years from 1970 to 2010. 
Use technology to find the cubic function that is the best fit for this data, where x is the number of years after 1970. Use the model to estimate the violent crime rate for the year 2014.
A. 11.4 B. 11.8 C. 11 D. 11.6