Use the distributive law to multiply.9(a + b)
A. 18ab
B. 9a + 9b
C. 9a + b
D. 9ab
Answer: B
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Find the GCF of 24, 27, and 30. ?
A. 10 B. 8 C. 1 D. 3
Answer the question(s) based on the following situation: For a population of 2000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 590 and standard deviation ? = 70.Approximately how many students scored between 450 and 730?
A. 1900 B. 1994 C. 1950 D. 1360 E. none of these
Find the distance between the two points on the coordinate plane. If necessary, round the answer to the nearest thousandth.(-3, -4) and (1, 5)
A. 5 units
B. 
units ? 9.849 units
C. 65
units ? 524.047 units
D. 65 units
Verify that each equation is an identity.cos(4u) = 2 cos2(2u) - 1
What will be an ideal response?