Eliminate the parameter t from the following and then sketch the graph:
?
?
A. ?
B.
C.
D.
E.
Answer: A
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Translate the argument into symbolic form, then use the table below to determine whether the argument is valid or invalid. Indicate valid/invalid and identify the type of answer.VALID ARGUMENTS
INVALID ARGUMENTS
We will lower the drinking age or we will require three photo IDs.
? We will lower the drinking age.
What will be an ideal response?
Solve formula for the specified variable.d = rt
for r
A. r = 
B. r = d - t
C. r = dt
D. r = 
Find the vertices and foci of the ellipse. Graph the ellipse.4x2 + 49y2 = 196
A. Foci at (0, -7) and (0, 7)
Vertices at (0, -49), (0, 49)
B. Foci at (-7, 0) and (7, 0)
Vertices at (-49, 0), (49, 0)
C. Foci at (0, - 3
) and (0, 3
)
Vertices at (0, -7), (0, 7)
D. Foci at (- 3
, 0) and (3
, 0)
Vertices at (-7, 0), (7, 0)
Solve the problem by estimating.Paul travelled for 3 weeks in Africa last year and spent $978 while he was there. Estimate the average amount he spent each day. Round the number of days to the to the nearest ten and the amount of money spent to the nearest hundred.
A. $60 B. $500 C. $600 D. $50