Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 + 18x - 8y + 97 = 36
A. (h, k) = (9, -4); r = 36
B. (h, k) = (4, -9); r = 6
C. (h, k) = (-4, 9); r = 36
D. (h, k) = (-9, 4); r = 6
Answer: D
You might also like to view...
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. x + 4 B. x - 4 C. x - 2 D. x + 2
Round to the place value indicated.9,999,999 to the nearest ten
A. 10,000,090 B. 9,999,990 C. 10,000,000 D. 100,000,000
In electrical circuits, the impedance Z (or opposition to the flow of electricity), voltage V, and current I can all be represented by complex numbers. They are related by the equation Z = 
. Use this equation to find the value of the missing variable.I = 8 + 6i, Z = 4 - 9i
A. V = - 
- 
i
B. V = 32 - 54i
C. V = -22 - 48i
D. V = 86 - 48i
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
(log6 x + log6 y)
A. log6 
B. log6 
+ log6 
C. log6 
D. 