Find the exact value.
Mathematics
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Find any x-intercepts.f(x) = x2 + 4x - 7
A. -4 and 3
B. -2 + 
and -2 - 
C. none
D. 4
Mathematics
Rewrite the equation such that each resulting term or combination is in an integrable form.5 sin(5x - 7y) dx - x dy = y dx + 7 sin(5x - 7y) dy
A. [5 sin(5x - 7y) dx - 7 sin(5x - 7y) dy] + (y dx - x dy) = 0 B. [5 sin(5x - 7y) dx - x dy]- [7 sin(5x - 7y) dy + y dx] = 0 C. [5 sin(5x - 7y) dx + 7 sin(5x - 7y) dy] - (x dy + y dx) = 0 D. [5 sin(5x - 7y) dx - 7 sin(5x - 7y) dy] - (x dy + y dx) = 0
Mathematics
Solve the equation for 0 ? t < 2?. Approximate the solution to four decimal places.sin t = 
A. 0.8481, 2.4119 B. 0.7297, 2.6180 C. 0.5236, 2.6180 D. 0.9273, 2.2935
Mathematics
Factor the expression.
?
What will be an ideal response?
Mathematics