Solve the following equation for x.det
= 7
A. {7}
B. {3}
C. {-
, 
}
D. {-3, 3}
Answer: D
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Rationalize the denominator and simplify. Assume all variables represent nonnegative real numbers.
A. 
B. 
C. 20
D. 3
Verify that each equation is an identity.csc2t - cos t sec t= cot2 t
What will be an ideal response?
The consumption function of the U.S. economy from 1929 to 1941 is 
, where C(x) is the personal consumption expenditure and 
is the personal income, both measured in billions of dollars. Find the rate of change of consumption with respect to income,
class="wirisformula" data-wiris-created="true" src="https://sciemce.com/media/3/ppg__cognero__3.4_Marginal_Functions_in_Economics__media__64938824-1169-48a9-93ae-824e96253055.PNG" style="vertical-align: middle;" />. This quantity is called the marginal propensity to consume.
?
Round the answer to three decimal places, if necessary.
?
__________
Fill in the blank(s) with the appropriate word(s).
Solve the problem.
What were the total sales for 2006?
A. $382,000 B. $582,000 C. $682,000 D. $482,000