Provide an appropriate response.Solve the following system of equations by reducing the matrix:
What will be an ideal response?
x = 
; y = 0; z = - 
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Solve the problem.The intensity L(x) of light x ft beneath the surface of a lake satisfies the differential equation 
. At what depth, to the nearest foot, is the intensity one tenth the intensity at the surface?
A. 49 ft B. 22 ft C. 16 ft D. 33 ft
?Hot dogs come in packages of 8 and hot dog buns come in packages of 10. Which of the following shows how we cannot find the number of packages of each in order to obtain a perfect match of dogs and buns? What concept is used? ?
A. ?Prime factor 8 and 10 and find the LCM. B. ?Find the union of the prime factors of 8 and 10: LCM concept C. ?Prime factor 8 and 10 and find the GCF. D. ?Find the smallest number that both 8 and 10 go into: LCM concept E. ?Add 8's together and add 10's together until you find a common sum: LCM concept
Use the graph of the quadratic function to determine the sign of the leading coefficient, the vertex, and the equation of the axis of symmetry.
A. Positive; (-2, 3); x = -2 B. Positive; (2, 3); x = 2 C. Negative; (2, 3); y = 3 D. Negative; (2, 3); x = 2
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 7x - y + 9z = 70-5x - 2z = -30 6y + z = 23
A. (4, 5, 3) B. (-4, 3, 8) C. (4, 3, 5) D. No solution