?Use an inverse matrix to solve (if possible) the system of linear equations.
?
A. ?( 
, 
)
B. ?( 4, 
)
C. ?( 
, 
)
D. ?( 
, 
)
E. ?( 
, 3 )
Answer: C
Mathematics
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State whether you think the difference between what occurred and what you would expect by chance is statistically significant.In eighteen of the last twenty years the annual precipitation in a certain region has been less than in the previous year.
A. Statistically significant B. Not statistically significant
Mathematics
Solve the problem.The sales tax on the purchase of a car is $3131.68. If the tax rate is 7.4%, find the purchase price of the car.
A. $31,316.80 B. $45,451.68 C. $1,325,326.98 D. $42,320.00
Mathematics
Factor the trinomial completely.3x5 + 6x4 - 45x3
A. 3x3(x2 + 2x - 15) B. x3(x + 5)(3x - 9) C. 3x3(x + 5)(x - 3) D. x3(3x + 15)(x - 3)
Mathematics
Solve.
log5 x + 9 = 8
A. - 
B. 125
C. -125
D. 
Mathematics