Provide an appropriate response.Let f(t) = t2 - 1, find (a) f(3t); (b) 3 × f(t)
What will be an ideal response?
| (a) | 9t2 - 1 | (b) | 3t2 - 3 |
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Decide whether or not the given equation is an identity.sin2 ? - cos2 ? = 1 - 2 cos2 ?
A. Yes B. No
Determine the amplitude and range of the function and sketch its graph.y = -3 sin 
x
A. amplitude: 3; range: [0, 3]
B. amplitude: 3; range: [-3, 3]
C. amplitude: 3; range: [-3, 3]
D. amplitude: 
; range: (-?, ?)
Solve the problem.A young married couple had a combined annual income of $43,000. If the wife made $3000 more than the husband, write these relationships as a system of equations. Let x represent the husband's income and let y represent the wife's income.
A. x + y = 3000 y = x + 43,000 B. x + y = 43,000 y = 3000 C. x + y = 43,000 y = x + 3000 D. x - y = 43,000 y = x + 3000
The loudness of a sound of intensity x, measured in watts per square meter, is defined as L(x) = log (
), where xo = 10-3.A company with load machinery needs to cut its sound intensity to 72% of its original level. By how many decibels should the loudness be reduced?
Fill in the blank(s) with the appropriate word(s).