Solve the problem. Write ratios in simplest form.A molecule of ethanol is composed of two atoms of carbon, six atoms of hydrogen, and one atom of oxygen. What is the ratio of oxygen atoms to total atoms in a molecule of ethanol? What is the ratio of carbon atoms to hydrogen atoms?
A. 
; 
B. 
; 
C. 9; 3
D. 1; 3
Answer: B
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Write the statement as a proportion. ? 54 is to 42 as 90 is to 70 ?
A.
B.
C.
D.
E.
Give a geometric description of the set of points whose coordinates satisfy the given conditions.y2 + z2 = 4, x = 2
A. The line tangent to the circle y2 + z2 = 4 at the point x = 2 B. The circle y2 + z2 = 4 in the plane x = 2 C. All points more than 2 units from the origin D. The cylinder with the radius 2 along the x-axis
Find the power of i.i19
A. -1 B. -i C. 1 D. i
Determine the relative maxima and relative minima, if any.
?
?
A. Relative maximum: f(0) = 5; Relative minima: f(5) = 0 and f( - 5) = 0 B. Relative maximum: f(0) = 5; No relative minima C. No relative maxima; Relative minimum: f(5) = 0 and f( - 5) = 0 D. No relative maxima or minima