Determine the coefficient and degree of the monomial.-15xy

A. coefficient: 2, degree: -15
B. coefficient: 15, degree: 1
C. coefficient: -15, degree: 2
D. coefficient: -15, degree: 1


Answer: C

Mathematics

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Find numbers a and b, or k, so that f is continuous at every point. 

A. k = 
B. k = 5
C. k = 
D. k = - 

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Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.2( + )

A. 2 + 10
B. 10 + 10
C. 2 + 5
D. 2 + 5

Mathematics

Graph the given function. Identify the vertex and the intercepts.y = 3 -x2 - 2x

A. Vertex: (1, 4)
x-intercepts: -1 and 3 
y-intercept: 3

B. Vertex: (- 1, 4) 
x-intercepts: -3 and 1
y-intercept: 3

C. Vertex: (- 1, - 4)
x-intercepts: -3 and 1 
y-intercept:-3

D. Vertex: (- 1, 4) 
x-intercepts: -1 and 3
y-intercept: 3

Mathematics

Use a coterminal angle to find the exact value of the expression. Do not use a calculator.cot 

A.
B.
C. 1
D.

Mathematics