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Math B Regents Exam Questions by <strong>Type</strong> - 2 Point Free Response Page 9<br />

www.jmap.org<br />

86. In the accompanying diagram of square<br />

ABCD, F is the midpoint of AB, G is the<br />

midpoint of BC, H is the midpoint of CD,<br />

and E is the midpoint of DA.<br />

Find the image of ΔEOA after it is reflected<br />

in line .<br />

Is this isometry direct or opposite? Explain<br />

your answer.<br />

87. If sin x = 4 ,<br />

5<br />

value of cos (x + 180°).<br />

where 0° < x < 90°, find the<br />

88. If the probability that it will rain on any given<br />

day this week is 60%, find the probability it<br />

will rain exactly 3 out of 7 days this week.<br />

89. When air is pumped into an automobile tire,<br />

the pressure is inversely proportional to the<br />

volume. If the pressure is 35 pounds when<br />

the volume is 120 cubic inches, what is the<br />

pressure, in pounds, when the volume is 140<br />

cubic inches?<br />

90. The brightness of the star MIRA over time is<br />

given by the equation y = 2 sin π x + 6,<br />

4<br />

where x represents time and y represents<br />

brightness. What is the period of this<br />

function, in radian measure?

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