For the function f(x)=5x−1, find each of the following.
(a) f(p)f(p)=5p−1 (Simplify your answer.)
(b) f(−r)f(−r)=−5r−1 (Simplify your answer.)
(c) f(m−2)f(m−2)=□ (Simplify your answer.)
Use any convenient method to solve the following system of equations. If the system is dependent, express the solution set in terms of one of the variables. Leave all fractional answers in fraction form.
⎩⎨⎧−3x+3y+6z=x+7y−z=4x+4y−7z=−122739
Use a sum-to-product formula to find the exact value. Write your answer as a simplified fraction and rationalize the denominator, if nece
sin165∘−sin75∘=□延
2 . In Exercises 23-28, graph three periods of the function. Use your understanding of transformations, not your grapher. Be sure to show the scale on both axes. 23. y=5sin2x 24. y=3cos2x 25. y=0.5cos3x 26. y=20sin4x
isentity whichic expressions are equivalent to the given expression
2(2y+2) Which of the following is equivalent to the expression 2(2y+2) ? Select all that apply.
A. 4y+6
- 2 - +2=2 y
C. 4y+4
Evaluate the following without a calculator and express in scientific notation: 1. 0.0025×107−1.07×105 2. 9×106+2.4×107 3. (0.0034)(2.5×10−7) 4. 1.44×10−8÷0.000024
Evaluate these expressions without a calculator and express answers in scientific notation: 1. 0.0025×107−1.07×105 2. 9×106+2.4×107 3. (0.0034)(2.5×10−7) 4. 1.44×10−8÷0.000024