Solve the inequality. Express your answer using interval notation.x + 4 < 11
A. (-?, 15)
B. (-?, 15]
C. (-?, 7)
D. (7, ?)
Answer: C
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Use a power regression model for the following data to estimate 
. Round your answer to two decimal places.
x 1 3 4 7 8 y 4.67 14.34 20.94 41.18 45.49?
A. 18.79 B. 19.31 C. 80.46 D. 78.82
Solve the problem.Given that the polar equation r = 
models the orbits of the planets, estimate the smallest possible distance between Earth, for which 
and 
and Venus, for which 
and 
A. About 2 astronomical units B. Zero astronomical units C. About 0.4 astronomical units D. About 0.2 astronomical units
Translate to a proportion and solve. When necessary, round to the nearest hundredth.41% of what is 82?
A. 0.5 B. 2000 C. 200 D. 50
Simplify the expression. Assume that all variables are positive when they appear.(3
)(9
)
A. 162
B. 162
C. 27
D. 972