Write the standard form of the equation of the circle with radius r and center (h, k).r = 4; (h, k) = (5, -9)
A. (x + 5)2 + (y - 9)2 = 16
B. (x - 5)2 + (y + 9)2 = 4
C. (x - 5)2 + (y + 9)2 = 16
D. (x + 5)2 + (y - 9)2 = 4
Answer: C
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Determine by matrix multiplication whether or not A is the proper matrix of solution values.
A = 
A. Yes B. No
Solve the problem.Let u = ln a and v = ln b. Write the following expression in terms of u and v without using the function ln.ln (
)
A. 
- 
v
B. 
+ 
v
C. 
- 4v
D. 
u + 
v
Solve the problem.A retailer knows that n games can be sold in a month at a price of 
dollars per game. Assume that he buys each game for 
and sells every one that he buys. If he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. 25 ? n ? 35 B. 20 ? n ? 50 C. 20 ? n ? 70 D. 0 ? n ? 20
Multiply the polynomials.(4y - 9)(16y2 + 36y + 81)
A. 16y3 + 729 B. 64y3 + 324y2 - 729 C. 64y3 + 729 D. 64y3 - 729