Determine the constant term that must be added to the expression to make it a perfect square.x2 - x

A. - 
B. - 
C.
D.


Answer: D

Mathematics

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Read the following vernier protractor.

A. 69°15' B. 72°15' C. 63°15' D. 71°15'

Mathematics

Decompose into partial fractions.

A. 2x - 9 +  - 
B. 2x - 9 -  + 
C. 2x + 9 -  + 
D. 2x + 5 -  + 

Mathematics

Solve the problem.A 1.5-lb package of seedless grapes costs $2.43. Find the unit price in dollars per pound. Round to the nearest cent.

A. $1.22 per lb B. $1.62 per lb C. $3.65 per lb D. $0.10 per lb

Mathematics

Determine whether the table gives the probability distribution of the random variable X. Explain your answer.



a. No, the sum of the probability assigned to the value of the random variable X is greater than 1.
b. No, the sum of the probability assigned to the value of the random variable X is not equal to 1.
c. No, the probability assigned to a value of the random variable X cannot be negative.
d. Yes, the sum of the probability assigned to the value of the random variable X is equal to 1.
e. No, the sum of the probability assigned to the value of the random variable X is less than 1.

Mathematics