Write the equation of the ellipse that has its center at the origin, focus at 
and 
is one-half the length of the minor axis.
?
A. 
B. 
C. 
D. 
E. 
Answer: A
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Write the converse, inverse, or contrapositive off the proposition, as indicated.If the alarm beeps every thirty seconds, then you have to replace the battery. (converse)
A. If you do not have to replace the battery, then the alarm does not beep every thirty seconds. B. If you have to replace the battery, then the alarm does not beep every thirty seconds. C. If you have to replace the battery, then the alarm beeps every thirty seconds. D. If the alarm does not beep every thirty seconds, then you do not have to replace the battery.
Determine whether the number used is a cardinal or an ordinal number.Hal's birthday is on February fifteenth.
A. Ordinal B. Cardinal
Multiply.- 
A. 1
B. - 
C. - 1
D. 
Estimate the quotient by rounding as indicated.235 ÷ 41 (nearest ten)
A. 9 B. 6 C. 18 D. 7