Cracking The SAT Premium

(Marvins-Underground-K-12) #1
Which   of  the following   quadratic   equations   is  represented in  the graph   above?
A) y = x^2 – x − 6
B) y = x^2 + x − 12
C) y = x^2 + 6x + 9
D) y = x^2 + 5x + 6

18 .Dahlia is competing in a group stair-climbing relay challenge with two of her friends.
They will take turns climbing the stairs of two of Metropolis’s tallest buildings. The three
of them each plan to climb an equal number of stairs, and Dahlia will go first. The first
building has s stairs, and the second building has 3,639 stairs. During the race, Dahlia runs
out of energy and is only able to complete 75% of her goal. What is the total number of
stairs that Dahlia climbs?


A) 0.75( s  +   1,213)

B) 0.75( s  +   3,639)

C) 75( s    +   1,213)

D) 75( s    +   3,639)

19 .Thirty-six percent of the 315 million people residing in the United States currently hold a
passport. Of these passport-holding individuals, 8% travel internationally every year. Of
those who travel internationally every year, approximately 10% visit European countries.
How many U.S. residents visit European countries every year?

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