?Area. The radius, r, of a circle is decreasing at a rate of 4 centimeters per minute.Find the rate of change of area, A, when the radius is 6.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: D
Mathematics
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Solve problems using a calculator.If a mechanic's assistant earns $20,746 per year and he pays $4019 in withholding taxes, what is his take-home pay?
A. $16,812 B. $16,727 C. $16,862 D. $16,736
Mathematics
Write the number without exponents.1.946 × 10-6
A. 0.000001946 B. 0.00001946 C. 0.0000001946 D. -1,946,000
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
y
Mathematics
Find the quotient and the remainder.x4 + 6x2 + 8 divided by x2 + 1
A. x2 + 5x + 
; remainder 3
B. x2 + 5x + 1; remainder 0
C. x2 + 5; remainder 3
D. x2 + 5; remainder 0
Mathematics