Find an equation for the tangent to the curve at the given point.y = x2 - x, (-3, 12)
A. y = -7x - 6
B. y = -7x - 9
C. y = -7x + 9
D. y = -7x + 6
Answer: B
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Provide an appropriate response.A student argued that it is impossible to use the substitution method to determine if a system of equations has no solution or an infinite number of solutions. Is the student correct?
Fill in the blank(s) with the appropriate word(s).
On the Richter scale, the magnitude R of an earthquake is given by the formula 
where I is the intensity of the earthquake being measured and I0 is the standard reference intensity. Suppose an earthquake is measured with a magnitude of 5 on the Richter scale with an error of at most 2%. Use differentials to find the error in the intensity of the earthquake. Round your answer to the nearest integer.
?
A. 23,026I0 B. 23,086I0 C. 22,966I0 D. 22,906I0 E. 23,146I0
Write the sum of the geometric series as a rational number.0.04 + 0.004 + 0.0004 + 0.00004 + ...
A. 
B. 
C. 
D. 54
Determine if the statement is a rational equation.
= 
A. Yes B. No