How many real roots does the equation 
have in the interval [?1, 1]?
a. at most five real roots
b. no real roots
c. at most one real root
d. at most two real roots
e. at most three real roots
c. at most one real root
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Provide an appropriate response.Suppose x = 0.
and y = 0.
. Find x + y by adding from left to right. How many digits are in the repetend of the sum?
A. 0.
; three digits
B. 0.
; six digits
C. 0.367458; six digits
D. 0.
; three digits
A system of nonlinear equations is given. Sketch the graph of the equation of the system and then determine the number of real solutions to the system. Do not solve the system.x2 + y2 = 252y + x = 5
A. Two
B. Two
C. One
D. Zero
Solve the problem.In 1990, the population of a country was estimated at 4 million. For any subsequent year the population, P(t) (in millions), can be modeled by the equation 
where t is the number of years since 1990. Estimate the year when the population will be 21 million.
A. approximately the year 2016 B. approximately the year 2093 C. approximately the year 2088 D. approximately the year 2041
Find the median. Round to the nearest tenth when necessary.720, 789, 783, 725, 757
A. Median = 783 B. Median = 789 C. Median = 720 D. Median = 757