Replace the ? with the correct symbol >, <, =.
? 
A. <
B. =
C. >
Answer: C
Mathematics
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Solve the inequality, then graph the solution.-2 < x + 5 < 4
A. (-7, -1)
B. (3, 9)
C. (-1, ?)
D. (1, 7)
Mathematics
Multiply.(
- 3)(
+ 3)
A. x
+ 3
- 3
- 9
B. x
+ 
- 9
C. x
- 9
D. x
- 9
Mathematics
Solve the problem.If a rock falls from a height of 20 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 20 - 4.9x2.When does the rock strike the ground? Round to the nearest hundredth, if necessary.
A. 2.02 sec B. 4.08 sec C. 0.83 sec D. 0.91 sec
Mathematics
Solve the equation and check the solution.
x - 
= 
+ 
x
A. x = - 
B. x = 
C. x = 1
D. x = - 
Mathematics