MATH-UA-009 — Algebra, Trigonometry and Functions
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MATH-UA-009 — Algebra, Trigonometry and Functions
Homework Assignment #2
2022
1. Find the sum or difference and simplify.
(a) (3 points) +
(b) (3 points) 2t2 + 13t + 20 − t2 + 7t + 12
2. (3 points) Simplify the following compound fraction. 1 +
1 −
3. If two electrical resistors with resistances R1 and R2 are connected in parallel, then their total resistance R is given by
1
R = 1 1
R1 + R2
(a) (2 points) Simplify the expression for R
(b) (1 point) If R1 = 10 ohms and R2 = 20 ohms, what is the total resistance
R?
4. (3 points) Rationalize the denominator and simplify, if possible.
x
^x2 + 1 + 1
5. Solve for the specified variable.
mM
(a) (2 points) F = G for m.
(b) (2 points) Solve y = for x.
(c) (2 points) Solve y = for x.
6. Solve the following quadratic equations by factoring, if possible, or using the quadratic formula. If no real solutions exist write ”no real solutions” .
(a) (4 points) 6x(x − 1) = 21 − x
(b) (4 points) x2 + 3x = 9
(c) (3 points) 3x2 + 4x + 3 = 0
7. (4 points) Solve the following quadratic equation by completing the square. 8x − 2x2 = 1
8. Solve the following rational equations for x.
x − 12 x + 4
3 − x x + 7
(b) (4 points) + =
2022-09-19