Decide what number must be added to the binomial to make a perfect square trinomial.x2 + 6x
A. 3
B. 5
C. 9
D. 18
Answer: C
Mathematics
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Write the prime factorization of the number.445
A. 5 ? 89 B. 52 ? 89 C. 52 D. 5 ? 87
Mathematics
Decide if the given value is a solution to the equation.t - 1 = 2 - (t + 0); t = 5
A. Yes B. No
Mathematics
Perform the operation and write the result in the standard form.(7 - 3i)2
A. 40 - 42i B. 40 + 42i C. 58 + 42i D. 58 - 42i
Mathematics
Solve the problem.A sample of 800 grams of radioactive substance decays according to the function 
where t is the time in years. How much of the substance will be left in the sample after 10 years? Round to the nearest whole gram.
A. 1 gram B. 800 grams C. 9 grams D. 605 grams
Mathematics