Evaluate the expression.
?
?
A. 81
B. 12
C. 9
D. 8
Answer: C
Mathematics
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Simplify.-2(9r + 7) + 5(5r + 5)
A. 7r + 5 B. -32r C. 7r + 11 D. 7r + 7
Mathematics
Perform the indicated operations. Express the answer as a single polynomial in standard form.(7y + 11)(5y2 - 2y - 2)
A. 90y2 - 36y - 36 B. 35y3 + 41y2 - 36y - 22 C. 35y3 - 14y2 - 14y + 11 D. 35y3 + 69y2 + 36y + 22
Mathematics
Find the LCM for the given numbers by an appropriate method.60, 40, and 70
A. 120 B. 420 C. 840 D. 280
Mathematics
Find the constant of variation and construct the function that is expressed in each statement.y varies jointly as x and the square of w: y = 584.808, when x = 4.8 and w = 5.9.
A. y = 4.302x2w B. y = 3.5xw2 C. y = 20.65xw D. y = 20.65xw2
Mathematics