Use the graph of a known basic function and a vertical stretch or a vertical compression to sketch the function.f(x) = 7x2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 3 feet from the base along the axis of symmetry and the opening is 10 feet across, how deep should the searchlight be?
A. 6.3 ft B. 8.3 ft C. 0.5 ft D. 2.1 ft
Mathematics
Use a half-angle formula to find the exact value of the expression.sin 
A. - 
B. 
C. - 
D. 
Mathematics
The decay rate of radium-226 is 0.043% per year. What is its half-life?
What will be an ideal response?
Mathematics
Evaluate dz.z = x3 - 5xy2 + 7y; x = -2, y = -3, dx = -0.03, dy = -0.03
A. 2.79 B. 2.58 C. -0.12 D. 0.33
Mathematics