Provide an appropriate response.Which of the following space regions is (are) closed?i.The hemispherical region centered at the origin with z > 0 and radius r bounded by 0 ? r ? roii.The xy-planeiii.The half-space x > 0iv.Space itself
A. ii, iii, and iv
B. iv only
C. ii only
D. ii and iv
Answer: D
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The following table shows average tuition T, in dollars, at a regional university t years after 2010. t 3 5 7 9 T 23312 23559 23806 24053A: Complete a table of changes to show that the data are linear.B: Find a linear model for the data.C: If this trend persists, when will tuition reach $24794?
What will be an ideal response?
Find the limit.
Solve using the simplex method.Find x1 ? 0 and x2 ? 0 such that x1 + x2 ? 50 x1 + x2 ? 25 2x1 + x2 ? 60and z = 3x1 + 4x2 is maximized.
A. x1 = 10, x2 = 40, z = 190 B. x1 = 25, x2 = 25, z = 175 C. x2 = 50, x1 = 0, z = 200 D. x1 = 50, x2 = 0, z = 150
Find an equation of the secant line containing (1, f(1)) and (2, f(2)).f(x) = 
A. y = (-
+ 2)x + 
- 4
B. y = (-
- 2)x - 
+ 4
C. y = (
- 2)x + 
- 4
D. y = (
- 2)x - 
+ 4