Simplify.5(-2)(5 - 3) - 1
A. -19
B. -21
C. 19
D. -11
Answer: B
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Solve.x2 + y2 = 100x2 - y2 = 100
A. (10, 0), (10, 10) B. (10, 0), (-10, 0) C. (-10, 0), (-10, 10) D. (10, 10), (-10, 10)
Graph the equation. Include the coordinates of any local extreme points and inflection points.y = 9x2 + 54x
A. local minimum: (-6,-54)
no inflection points
B. local minimum: (3,-81)
no inflection points
C. local minimum: (-3,-81)
no inflection points
D. local minimum: (6,-54)
no inflection points
Subtract. Combine like terms, and write the answer in descending order.(7z + 5z2 + 6) - (10z2 - 1)
A. -5z2 + 8z + 6 B. 15z2 + 7z + 5 C. -5z2 + 7z + 7 D. 15z2 + 8z + 6
Solve the problem.The half-life of radium is 1690 years. If 150 grams is present now, how long (to the nearest year) till only 100 grams are present?
Fill in the blank(s) with the appropriate word(s).