Change the word statement to an equation. Use x as the variable.Twice a number less 5 equals 7.
A. 2(x - 5) = 7
B. 5 - 2x = 7
C. 2x - 5 = 7
Answer: C
Mathematics
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = 4 cos ?
A. C(4, 0), radius = 4 B. C(4, ?/2), radius = 4 C. C(2, 0), radius = 2 D. C(2, ?/2), radius = 2
Mathematics
Simplify the expression. Write the result using positive exponents only.-5z-2
A. - 
B. 
C. - 
D. 
Mathematics
Round the whole number to the given place value.4084 to the nearest hundred
A. 4090 B. 4100 C. 4200 D. 4000
Mathematics
Find the quotient and the remainder.x4 + 6x2 + 8 divided by x2 + 1
A. x2 + 5x + 1; remainder 0
B. x2 + 5; remainder 0
C. x2 + 5; remainder 3
D. x2 + 5x + 
; remainder 3
Mathematics