Determine if the parabola whose equation is given opens upward or downward.y = -4x2 - 2x - 9
A. downward
B. upward
Answer: A
Mathematics
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Reduce the fraction to simplest form.
A. 
B. 
C. - 
D. 
Mathematics
Find the integral.
A. 
(2t + 5)4 + C
B. 
(2t + 5)4 + C
C. 
(2t + 5)4 + C
D. 
(2t + 5)4 + C
Mathematics
Provide an appropriate response.Light with a wavelength of 0.00000047 meters is blue in color. Write 0.00000047 in scientific notation.
A. 4.7 × 107 B. 4.7 × 10-7 C. 4.7 × 10-6 D. 4.7 × 10-8
Mathematics
State the quadrant in which ? lies if 
> 0 and 
> 0.
A. Quadrant II B. Quadrant III C. Quadrant IV D. Quadrant I
Mathematics