Solve the problem.Let f(N) be the value (in cents) of N nickels, and let g(D) be the number of nickels worth D dollars.a. Find equations of f and g.b. Find an equation of f ? g.c. Find (f ? g)(4)
What will be an ideal response?
a. f(N) = 5N; g(D) = 20D
b. (f ? g)(D) = 100D
c. 400
Mathematics
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Add or subtract. Express the answer as a mixed number.19
+ 16
A. 34
B. 36
C. 19
D. 35
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Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?20%
A.
 ? | 2 |
B.
 ? | 2 |
C.
 ? | 0.2 |
D.
 ? | 0.2 |
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Factor by grouping.12x2 + 20xy - 9xy - 15y2
A. (4x - 3y)(3x + 5y) B. (4x - 3)(3x + 5) C. (12x - 3y)(x + 5y) D. (4x + 3y)(3x + 5y)
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Identify the equation without applying a rotation of axes.4x2 - 7xy + 2y2 + 4x + 3y + 9 = 0
A. hyperbola B. parabola C. ellipse D. not a conic
Mathematics