Provide an appropriate response.Use the Intermediate Value Theorem to prove that 7x3 + 9x2 - 6x - 5 = 0 has a solution between -2 and -1.
What will be an ideal response?
Let f(x) = 7x3 + 9x2 - 6x - 5 and let y0 = 0. f(-2) = -13 and f(-1) = 3. Since f is continuous on 
and since y0 = 0 is between f(-2) and f(-1), by the Intermediate Value Theorem, there exists a c in the interval (-2 , -1) with the property that f(c) = 0. Such a c is a solution to the equation 
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Find the exact value of the trigonometric expression without the use of a calculator.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Identify the greatest common factor.2x2y - 10xy2
A. 2xy B. 2 C. 2x2y2 D. xy
Graph the ellipse. Label the x- and y-intercepts.x2 + 
= 1
A. x-intercepts: (-5, 0), (5, 0);
no y-intercepts
B. no x-intercepts;
y-intercepts: (0, 5), (0, -5)
C. x-intercepts: (-5, 0), (5, 0);
y-intercepts: (0, 1), (0, -1)
D. x-intercepts: (-1, 0), (1, 0);
y-intercepts: (0, 5), (0, -5)
Work the application.Richard's team wants to plant 670 trees in 5 months. How many trees per month do they need to plant?
A. 139 trees B. 268 trees C. 134 trees D. 144 trees