Write a linear inequality that describes the shaded region.
A. y ? -2x - 2
B. y ? -2x - 2
C. y ? 2x + 2
D. y ? 2x + 2
Answer: C
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Solve the problem.The number of bacteria growing in an incubation culture increases with time according to where x is time in days. Find the number of bacteria when
and
.
A. 4800 bacteria; 1,228,800 bacteria B. 4800 bacteria; 76,800 bacteria C. 4800 bacteria; 38,400 bacteria D. 19,200 bacteria; 76,800 bacteria
Provide an appropriate response.When solving problems, why is it necessary to check the answer in the original problem rather than in the equation to which you translated the problem?
What will be an ideal response?
Translate as an inequality. Use x to represent the number.-4 is less than a number.
A. -4 ? x B. -4 > x C. -4 < x D. -4 - x
?Solve the system of linear equations
using an inverse matrix.
?
A. ?
?
B. ?
C. ?
D. ?
E. ?