Find the product.-9x(10x - 5)
A. 10x2 + 45x
B. -90x2 - 5x
C. -45x2
D. -90x2 + 45x
Answer: D
Mathematics
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Find the sum of the terms of the arithmetic sequence.-154, -139, -124, -109, . . ., 11 n = 12
A. 990 B. -1716 C. 858 D. - 858
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Evaluate to four decimal places using a calculator.e1.539
A. 2.3685 B. 7.3891 C. 4.1834 D. 4.6599
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Evaluate the expression.
- 
A. 
B. 
C. 
D. 
Mathematics
Find the dimensions of the null space and the column space of the given matrix.A = 
A. dim Nul A = 3, dim Col A = 4 B. dim Nul A = 5, dim Col A = 2 C. dim Nul A = 4, dim Col A = 3 D. dim Nul A = 2, dim Col A = 5
Mathematics