Translate the sentence into an equation. Use x to represent the unknown number. Do not solve.The ratio of a number and 10 is equivalent to the difference of 15 and the number.
A. 
= 15 - x
B. 
= x - 15
C. 
= x - 15
D. 
= 15 - x
Answer: A
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Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. -
B. -3
C. -
D. -
Write the whole number.Seven thousand, four hundred sixty-three
A. 7063 B. 700,463 C. 70,463 D. 7463
Factor the trinomial, if possible.(x + 4y)2 + 6(x + 4y) + 9
A. (x + 4y - 3)(x - 4y + 3) B. (x - 4y + 3)2 C. (x + 4y + 3)2 D. (x + 4y - 3)2
Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.
Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).
A. 0.818 B. 0.340 C. 0.720 D. 0.107