Find the intervals on which the function is continuous.y = 
A. continuous on the intervals (-?, -
] and [
, ?)
B. continuous everywhere
C. continuous on the interval [
, ?)
D. continuous on the interval [-
, 
]
Answer: A
Mathematics
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Evaluate the function at the given values of the variable.f(x) = x2 + 5
a. f(-4)
b. f(-6)
A. 80, 180 B. -40, -60 C. -3, -7 D. 21, 41
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Factor a negative number or a GCF with a negative coefficient from the polynomial.-7x4 + x6
A. -7x4(1 - x2) B. -x4(7 + x2) C. -7x4(1 + x2) D. -x4(7 - x2)
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Find the reference angle for the given angle.-403°
A. 43° B. 133° C. 47° D. 137°
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Solve the problem.Assume that the probability is 
that a child born is a boy. What is the probability that both of a family's two children are girls?
A. 
B. 
C. 
D. 
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