Graph the equation and its tangent.Graph y = -5x2 and the tangent to the curve at the point whose x-coordinate is 1.
A. 
B. 
C. 
D. 
Answer: C
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Write the ratio using the word form, the colon form, and the fraction form in lowest terms. In a three-point shooting contest, a basketball player attempted 25 shots and made 11 of them. What is the ratio of shots made to shots attempted?
A. 25 to 11; 25 : 11; 
B. 11 to 25; 11 : 25; 
C. 25 to 11; 25 : 11; 
D. 25 to 11; 25 : 11; 
Tell whether the relation is reflexive, symmetric, or transitive on the set of subsets of a nonempty set. Also tell whether the relation is an equivalence relation."Is disjoint with"
A. None; not an equivalence relation B. Reflexive; not an equivalence relation C. Symmetric; not an equivalence relation D. Transitive and symmetric; not an equivalence relation
Determine if the given vectors are orthogonal, parallel, or neither.v = 4i - 2j, w = 4i + 2j
A. Neither B. Orthogonal C. Parallel
Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, 
where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. at the time of injection B. t = 4 minutes after the injection is given C. t = 0.55 minutes after the injection is given D. t = 3.65 minutes after the injection is given