Reduce the fraction to simplest form.
A. x3 - x2a + xa2 - a3
B. x3 + a3
C. Cannot be simplified
D. x3 + x2a + xa2 + a3
Answer: D
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A hypothesis test is to be performed. State the null and alternative hypotheses.Carter Motor Company claims that its new sedan, the Libra, will average better than 32 miles per gallon, which is the gas mileage of its competitor.
A. Null hypothesis: mean gas mileage > 23 mpg Alternative hypothesis: mean gas mileage = 23 mpg B. Null hypothesis: mean gas mileage < 23 mpg Alternative hypothesis: mean gas mileage > 23 mpg C. Null hypothesis: mean gas mileage = 23 mpg Alternative hypothesis: mean gas mileage ? 23 mpg D. Null hypothesis: mean gas mileage = 23 mpg Alternative hypothesis: mean gas mileage > 23 mpg
Find  figure.png)
(t) and  figures 4.png)
(t) for r(t) = 10ti+7t²j+5t³k.
What will be an ideal response?
Use even and odd properties of the trigonometric functions to find the exact value of the expression.sin 
A. - 
B. 
C. 
D. - 
What is the basic SI unit for molecular substance?
A. mole B. kilogram C. radian D. watt