Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use Euler's method with the specified step size to approximate the solution.Use Euler's method with h = 0.2 to estimate y(2) if y' = -y and y(1) = -2. Round your answer to four decimal places.
A. y(2) ? -0.0554 B. y(2) ? -0.4554 C. y(2) ? -0.2554 D. y(2) ? -0.6554
Mathematics
Find the curvature ? and radius of curvature R for the curve at the given point.y = cos x, 
A. ? = 
, R = 
B. ? = 
, R = 
C. ? = 
, R = 
D. k = 
, R = 
Mathematics
Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 75°
A. - 
B. 
C. 
D. - 
Mathematics
Provide an appropriate response.Factor completely: y2 - 49
A. (y + 7)(y - 7) B. (y - 7)2 C. (y + 7)2 D. (y - 7)(y - 7)
Mathematics