Provide an appropriate response.Without using a calculator, explain why 2? must be greater than 8 but less than 16.
What will be an ideal response?
Since 3 < ? < 4, 23 < 2? < 24; that is 2? is greater than 23 (or 8), but less than 24 (or 16). This is true because 2x is an increasing function.
Mathematics
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Without using a calculator, give the exact trigonometric function value with rational denominator.cos 30°
A. 
B. 
C. 
D. 
Mathematics
Find the vertex and axis of symmetry of the graph of the function.f(x) = -3x2 - 2x - 7
A. 
; x = - 
B. (3, -7); x = 3
C. 
; x = -3
D. 
; x = 
Mathematics
Write true or false for the statement.All angles in an equilateral triangle are less than 90°.
A. True B. False
Mathematics
Use rational exponents to simplify the expression, if possible. Then, write the answer in radical form.
? 
A. 
B. 
C. 
D. 
Mathematics