Differentiate implicitly to find the slope of the curve at the given point.x2 + y2 + 2y = 0; (0, -2)
A. -2
B. 2
C. 1
D. 0
Answer: D
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Solve the system of equations by the addition method.
A. Infinite number of solutions B. (16, 16) C. (3, -2) D. No solution
For the following decimal measurement, (a) find the closest fractional equivalent using the given denominator, and (b) find the error, to the nearest ten-thousandth if the fraction is used in place of the decimal number.0.729 in. (32nds)
A. (a) 
,
(b) 0.0110
B. (a) 
,
(b) 0.0415
C. (a) 
,
(b) 0.0103
D. (a) 
,
(b) 0.0728
Determine whether a linear model might fit the data.
A. Yes B. No
There is a right triangle ABC with 
, 
, and 
class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_df048d1e9e1b416994be73405" /> Use a calculator to find cos A. Round your answer to the nearest hundredth. ? A. 0.87 B. 0.86 C. 0.48 D. 0.49 E. 0.85