Multiply. Write the answer in descending order and combine like terms.(2x3 + 6)(2x3 - 6)
A. 4x6 - 24x - 36
B. 4x6 - 36
C. 4x2 + 24x - 36
D. 4x3 - 36
Answer: B
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Find the area of the specified region.Inside the lemniscate r2 = a2 sin 2?, a > 0
A. ?a2
B. a2
C.
D. 0
Factor the polynomial by substitution.6y4 + 5y2 - 6
A. (3y2 - 2)(2y2 + 3) B. (2y - 3)(3y + 2) C. (6y2 - 2)(y2 + 3) D. (3y2 + 1)(2y2 - 6)
Solve the problem.The table shows the number of new AIDS cases (in thousands) in the U.S. in five consecutive years.Let x = 1 correspond to 1988 and let f(x) be the number of new AIDS cases (in thousands) in the U.S. in year x. Using the points
and
the following linear function is obtained to model the data:
Compare the number of new AIDS
cases given by the model in 1990 with the actual number of new AIDS cases that year. How accurate is the model? What will be an ideal response?
Provide an appropriate response.The only consecutive whole numbers that are both prime numbers are and
.
A. 2 and 3 B. 1 and 2 C. 0 and 1 D. 6 and 7