Check the addition. If the answer is incorrect, find the correct answer.
1523
A. Correct
B. Incorrect; should be 1525
C. Incorrect; should be 1623
D. Incorrect; should be 1521
Answer: A
Mathematics
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Answer the question.How would you express the product of two numbers, r and s?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Expand the expression using the Binomial Theorem.(x2 + 5)4
A. x8 + 20x6 + 250x4 + 500x2 + 625 B. x8 + 20x6 + 150x4 + 500x2 + 625 C. x4 + 20x3 + 150x2 + 500x + 625 D. x8 + 20x7 + 150x6 + 500x5 + 625
Mathematics
Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.x2 + 2x - 8 = 0
A. -4, 2 B. -4, 1 C. 4, -2 D. 4, 2
Mathematics
Find the exact solutions to the quadratic equation, using a method of your choice.2x2 = 30
A. 16
B. 15
C. ±
D. 15, -15
Mathematics