Official Act Math Thread February 2013

Test Preparation
81

<p>i had 71f. and the distance was 5</p>

82

<p>There was no one with a sphere with a trinagle inside, it gave you the circles midpoint and a point on the edge of the circle. It asked for the radius, and to do that you could make a triangle where the hypotenuse was the radius, I’m fairly certain it was 5.</p>

83

<p>Kongo, distance is always positive - five would be the answer</p>

84

<p>@theKongo distance is 5, displacement would be -5 (if you started from -6)</p>

85

<p>so was the answer to 60 “A”? ? I need the letter, i got the equation part.</p>

86

<p>I believe so actstudent</p>

87

<p>@delayed yes that was 5. all you had to do was use the distance formula from the center to the point on the circle</p>

88

<p>could -2 still be a 36?</p>

89

<p>@working123- are there any other questions you did not get on your test. Isn’t that unfair that students would get different questions</p>

90

<p>yes!!! 36 then. thanks. Anyone else can confirm that for me? And the distance one is positive 5</p>

91

<p>@diddly
no</p>

92

<p>@delayed
I was referring to a different problem but yes your answer (and mine) is correct</p>

<p>I was talking about a 3D sphere with a 3D cube inside it</p>

93

<p>What was question 60 again so i could post it as there seems to be a consensus</p>

<p>Again, the distance is five</p>

94

<p>question 60 was the ellipse. you just flip the denominators from given</p>

95

<p>Curve predictions?</p>

<p>-0 36
-1 35
-2 34
-3 33
-4 33</p>

96

<p>thanks lichen.</p>

97

<p>Does anyone remember the letter answer for probability question? Had to guess last one. And for the pencil on</p>

98

<p>Here seems to be the general consensus for the questions:
Probability question = {3/4}
Period= 4 pie
Town question= 12
Total hours read question = 24n- answer choice C
Ticket one- 150 adult, { 200 children }
Pencils- 1155
Ellipse- x^2/9+ y^2/16 =1- answer choice A
Any nay sayers???</p>

99

<p>@bmirish it’s 3/4.
it’s
1/4 * 1 (the yellow cuz there’s no marbles)
for green it’s
1/4 * (how many not green /12 )
blue it’s
1/4 * (how many not blue/12)
last color it’s
1/4* (how many not /12)
then u add those up</p>

100

<p>Does anyone remember the letter answer for probability question? Had to guess last one. And how about the wording for the pencil question?</p>