Factor by grouping.18a3 + 24a2b - 15ab2 - 20b3
A. (6a2 - 5b2)(3a + 4b)
B. (18a2 - 5b2)(a + 4b)
C. (6a2 - 5b)(3a + 4b)
D. (6a2 + 5b2)(3a - 4b)
Answer: A
Mathematics
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Replace the polar equation with an equivalent Cartesian equation.r2 = 46r cos ? - 6r sin ? - 9
A. 46x - 6y = 9 B. (x - 23)2 + (y + 3)2 = 529 C. (x + 46)2 + (y - 6)2 = 9 D. (x - 23)2 + (y + 3)2 = 9
Mathematics
Find the area of the region under the graph of 
from 
to 
variablename="impvar_eec3540903e44ad1a0f326e08" />.
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Perform the indicated operation.4.991 - (-0.32)
A. 5.311 B. 1.597 C. 5.411 D. 4.671
Mathematics
List the terms of the expression. Then identify the coefficient of each term.6h - 8
A. 6h; 6 B. 6h, -8; 6, 8 C. 6h, -8; 6, -8 D. h; 6, -8
Mathematics