Write an equation for the ellipse.center at origin; length of major axis 16; y-intercepts (0, ±5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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Evaluate the exponential expression.33
A. -27 B. 6 C. 9 D. 27
Write the statements Sk and Sk+1.Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = 
What will be an ideal response?
Solve the problem.The cost of tuition at a community college is given by C(x) = 490 + 54x, where x is the number of credit hours. Interpret the slope of this function as a rate of change.
A. The tuition at the community college increases by $490 for each additional 54 credit hours. B. The number of credit hours increases by 54 for each increase of $490 in tuition. C. The tuition at the community college increases by $490 for each additional credit hour. D. The tuition at the community college increases by $54 for each additional credit hour.
Solve the variation problem.The pressure of a gas varies jointly as the quantity of the gas (measured in moles) and the temperature and inversely as the volume of the gas. Suppose that the pressure of a particular gas is 
(kPa) when the quantity is 
the temperature is 
and the volume is 
Find the pressure of that gas when the number of
moles is 9, the temperature is 
and the volume is 
A. 1296 kiloPascals
B. 648 kiloPascals
C. 1200 kiloPascals
D. 696 kiloPascals