Write an equation for the linear function and use it to answer the given question. Normaltown High School's pool record for the 100-yard freestyle was 46.7 in 1990. Assume that the record falls at a constant rate of 0.07 second per year. What does the model predict for the record in 2017?
A. R = 46.7 + 0.07t; 48.59 seconds
B. R = 46.7 - 0.07t; 44.81 seconds
C. R = 46.7t - 0.07; 1260.83 seconds
D. R = 46.7t + 0.07; 1260.97 seconds
Answer: B
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Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.25x2 - 16y2 = 400
A. center: (0, 0)
transverse axis: y = 0
vertices: (-5, 0), (5, 0)
foci: (-
, 0), (
, 0)
asymptotes: y = - 
x and y = 
x
B. center: (0, 0)
transverse axis: y = 0
vertices: (0, -4), (0, 4)
foci: (0, -
), (0, 
)
asymptotes: y = - 
x and y = 
x
C. center: (0, 0)
transverse axis: y = 0
vertices: (-4, 0), (4, 0)
foci: (-
, 0), (
, 0)
asymptotes: y = - 
x and y = 
x
D. center: (0, 0)
transverse axis: y = 0
vertices: (-4, 0), (4, 0)
foci: (-3, 0), (3, 0)
asymptotes: y = - 
x and y = 
x
Solve.Julia went shopping for holiday presents for her family. She spent $296 on Monday, $264 on Tuesday, and $185 on Wednesday. What is the total amount of money that she spent on gifts?
A. $845 B. $655 C. $755 D. $745
Solve the inequality and write the solution set using interval notation; then graph the solution set on a number line. (c + 7)(c + 2)(c + 1) > 0
A. (-?, -2)
B. (-?, -7) ? (-2, -1)
C. (-7, -2) ? (-1, ?)
D. (-1, ?)
A building contractor estimates that 9 ethernet connections are needed for every 700 square feet of office space. Using this estimate, how many ethernet connections are necessary for an office building of 55,000 square feet?
A) 1273 ethernet connections B) 71 ethernet connections C) 919 ethernet connections D) 707 ethernet connections E) 283 ethernet connections