Write a matrix equation equivalent to the system of equations.9x - 8y + 10z = 3-3x + 9y - 7z = 9
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: C
Mathematics
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Solve by using the quadratic formula.7x2 + 12x = - 1
A. 
B. 
C. 
D. 
Mathematics
Find 
for the given function.y = -3x6(2x - 6)2
A. -84x7 + 504x6 - 648x5 B. -672x6 + 3024x5 - 3240x4 C. -156x6 + 864x5 - 90x4 D. -12x7 + 72x6 - 18x5
Mathematics
Simplify the exponential expression using the rules for exponents.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Snell's Law states that 
Use this law to find the requested value. If 
find 
Round your answer to the nearest degree.
A. ?1 = 40° B. ?1 = 42° C. ?1 = 43° D. ?1 = 45°
Mathematics