Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (-4, -1), perpendicular to -7x + 9y = 19
A. y = - 
x - 43
B. y = - 
x
C. y = - 
x - 
D. y = 
x + 
Answer: C
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 
B. 6.25 × 10-2
C. 3.13 × 10-2
D. 1.56 × 10-2
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Factor the following:
a. (3x + 6) b. (2a2 + 3a) c. (3x + 2ax + 4xy) d. (4a2b2 + 6ab - 8a2b3)
Mathematics
Approximate the value using a calculator. Express answer rounded to three decimal places.3.4783.878
A. 125.683 B. 13.488 C. 111.475 D. 76.339
Mathematics
Simplify.(x7y)3
A. x21y B. x10y C. x21y3 D. x10y4
Mathematics