Provide an appropriate response.An acute angle is less than __________ degrees.
Fill in the blank(s) with the appropriate word(s).
90
Mathematics
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Solve the problem.A bead is formed from a sphere of radius 4 by drilling through a diameter of the sphere with a drill bit of radius 1. Find the volume of the bead.
A. 27?
B. 
?
C. 54?
D. 
?
Mathematics
Provide an appropriate response.When the numerator is the same as the denominator, for example 
, the fraction is called a(n) 
fraction.
A. whole B. proper C. uncommon D. improper
Mathematics
Use Euler circles to check the validity of the argument. ? No politicians are honest. Some dishonest people are found out. Therefore, some politicians are found out. ? The argument is __________. ?
A. not valid B. valid
Mathematics
For the piecewise function, find the specified function value.f(x) = {
f(4)
A. 4 B. 27 C. -9 D. 3
Mathematics