Find the equation of the parabola determined by the given information.Focus at (1, 7), directrix x = -9
A. x = 
y2 - 
y - 
B. y = 
x2 + 
x + 
C. y = 
x2 - 
x + 
D. x = 
y2 + 14y + 31
Answer: A
You might also like to view...
Solve the problem.How long will it take for $9500 to grow to $35,400 at an interest rate of 10.1% if the interest is compounded continuously? Round the number of years to the nearest hundredth.
A. 13.02 yr B. 1302.4 yr C. 1.3 yr D. 0.13 yr
Solve.For a resistor in a direct current circuit that does not vary its resistance, the power that a resistor must dissipate is directly proportional to the square of the voltage across the resistor. The resistor must dissipate 
watt of power when the voltage across the resistor is 8 volts. Find the power that the resistor must dissipate when the voltage across it is 16 volts.
A. 4 watts
B. 
watt
C. 
watt
D. 
watt
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525
Solve.A package of trail mix, contains 0.2 kg of nuts, 0.18 kg of chocolate bits, and 300 g of dried fruit. Find the total weight of the package.
A. 0.68 kg B. 3.38 kg C. 30.38 kg D. 300.38 kg