Change the percent to a decimal.31
%
A. 3137.5
B. 0.31375
C. 3.1375
D. 0.031375
Answer: B
Mathematics
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Solve the system. If there is an unlimited number of solutions, find one of them.x + y + z = 92x - 3y + 4z = 7x - 4y + 3z = -2
A. x = 9, y = 7, z = 2
B. x = 1, y = 1, z = 1
C. Unlimited: x = 
, y = 
, z = 0
D. Inconsistent
Mathematics
Evaluate the integral.
A. - 
B. 
C. ln 2
D. 
Mathematics
Find the values of x that satisfy the given conditions.10 ? 3x - 2 ? 19
A. -7 < x < -4 B. 4 < x < 7 C. 4 ? x ? 7 D. -7 ? x ? -4
Mathematics
Solve the problem.Given the area A of a circle, the formula r = 
can be used to calculate the radius of the circle. Rewrite the formula by rationalizing the denominator on the right hand side.
A. r = ? 
B. r = 
C. r = 
D. r = 
Mathematics