Solve using the percentage formula.21 is 3% of what number?
A. 63
B. 7,000
C. 700
D. 70
Answer: C
Mathematics
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Factor completely. If the polynomial cannot be factored, write "prime."16x2 + 81
A. prime B. (4x + 9)(4x - 9) C. (4x - 9)2 D. (4x + 9)2
Mathematics
Solve the equation. First simplify the expression by combining like terms.2(2z - 5) = 3(z + 2)
A. -4 B. -2 C. 16 D. 4
Mathematics
Use the sum-to-product formulas to rewrite the sum or difference as a product.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Use the differential to find a decimal approximation of the radical expression. Round to four decimal places.
A. 2.3500 B. 2.2500 C. 2.4500 D. 2.1500
Mathematics