Find the directional derivative of the function f(x,y) =  figures 4.png)
at the point p(7, 0) in the direction of the unit vector that makes the angle  figure.png)
with the positive x-axis.
 multiple choice.png)
b. 13
Mathematics
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Solve the problem.
The Montgomerys borrowed $86,000 at 7.50% for 30 years to purchase a house. Find the total interest the Montomerys will pay if they pay the loan on schedule.
A. $142,794.40 B. $135,673.60 C. $130,410.40 D. $119,884.00
Mathematics
Write using exponential notation.19 × 19 × 19 × 19 × 19
A. 5 × 519 B. 519 C. 195 D. 5 ? 19
Mathematics
Provide an appropriate response.Graph the relation y = x2 - 4 by plotting points. Use the graph of the relation to identify the domain and range.
A. domain: (-?, ?); range: [4, ?)
B. domain: (-?, ?); range: [-4, ?)
C. domain: (-?, ?); range: [0, ?)
D. domain: (-?, ?); range: [0, ?)
Mathematics
Find the missing factor.25x2 - 10xy - 24y2 = (5x - 6y)( )
A. 4y - 5x B. 5 + 4xy C. 4x - 5y D. 5x + 4y
Mathematics