Describe the graph of the polar equation. r2sin 2? = 42
A. Parabola centered at the origin opening to the right
B. Hyperbola with asymptotes y = ±21x
C. Parabola centered at the origin opening upward
D. Hyperbola with the x- and y-axes as asymptotes
Answer: D
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What is the most efficient way to determine if A = 7 X 13 is a prime number?
a. Multiply 7 by 13. Then check to see if the product has any factors besides 1 and itself. b. Deduce that A must be prime because the product of two prime numbers must be another prime number. c. Deduce that A cannot be prime because it is shown that 7 and 13 are two of its factors. d. Multiply 7 by 13. Then apply divisibility rules for 7 to the product.
Find the value of the ordinary annuity. Interest is compounded annually unless otherwise stated. Round to the nearest cent.R = $10,000, i = 9% interest compounded quarterly for 9 years
A. $130,210.36 B. $990,140.63 C. $523,908.25 D. $545,696.19
Solve the equation by completing the square.x2 + 8x - 3 = 0
A. {-4 - 1
, -4 + 1
}
B. {-1 - 
, -1 + 
}
C. {4 + 
}
D. {-4 - 
, -4 + 
}
By how much did the price of a sofa decrease if the regular price of $2,795was reduced by 40%? ?
A. 70 B. 1,118 C. 1,398 D. 2,236