Solve for x.4x = 256
A. 3
B. 5
C. 64
D. 4
Answer: D
Mathematics
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The magnitude M of a star is related to the relative intensity I of light reaching Earth from the star. The relationship is
.
A: Star A has a relative intensity 8.77 times that of star B. How do their magnitudes compare?B: Make a graph of M versus I. Include relative intensities up to 100.C: If the magnitude of a star is 3, what is the relative intensity of light reaching Earth from the star?
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Round your answers to two decimal places if necessary.
?
What will be an ideal response?
Mathematics
Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics
Solve the equation.
= 
A. {2} B. {-16} C. {16} D. {-2}
Mathematics
Find the amplitude.y = -4 sin(2?x + 3)
A. 2? B. 4 C. ? D. -8
Mathematics