A carpenter’s square can be used to find the distance across a pond, as follows. Place the square on the top of a pole which is tall enough to allow you to sight along one side of the square to the opposite side of the pond. Fix the square and sight along the other side of the square to a point Q on the ground. If QA = 1' and AB = 5', find AP, the distance across the pond.
25'
Mathematics
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Evaluate the line integral of f(x,y) along the curve C.f(x,y) = 2y2, C: y = e-x, 0 ? x ? 4
A. 
B. 
C. 1[2
- (e- 8 + 1)3/2]
D. 
[2
- (e- 8 + 1)3/2]
Mathematics
Determine whether the statement makes sense. If the statement is possible then it makes sense. If it is clearly impossible, it does not make sense. My age in seconds is about 5 × 109.
A. Yes B. No
Mathematics
Solve.If a rectangle has length l and width w, then it has an area of l?w square units. Find the area of a 38 by 33 rectangle.
A. 142 square units B. 38 square units C. 1254 square units D. 33 square units
Mathematics
Solve the equation for x.
= -1
A. {-1} B. {3} C. {1} D. ?
Mathematics