1Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestSource question 1. Refer to the source image.AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
2Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestTbe top surface of a rectangular table has an area of 144 square feet and a width of 4 feet. What is the length, in feet, of the surface? 12 140A36BChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
3Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe price of a coat decreased from $50 to $40. The price decreased by what percent? ACT.7CC 14 GO ON TO THE NEXT PAGE.AIOYOB1410C15YoD20foE25Yo
4Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe word average indicates arithmetic mean. l. The table below gives the healt rates, in beats per minute (bpm), for 8 participants in a fitness study after each participant completed 45 minutes of aerobic exercise. What is the mean heart rate of the 8 participants, to the nearest O. I bpm ? DO YOUR FIGURING HERE. Participant Heart rate (bpm) 130 155 162 148 177 162 170 156 Sum 1,260A137.3B153.5C157.5D162.0E162.5
5Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestBelinda plans to use landscaping timbers to buiId a border for her 8-foot-by-12-foot rectangular garden. To determine the number of timbers she needs, she must calculate the perimeter of the garden. What is the perimeter, in feet, of the garden?A20B24C40D48E96
6Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math Test+x 36 DO YOUR FIGURING HERE.A14B16C24DChoice J — see source imageEChoice K — see source image
7Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe first question on a 2-question quiz offers 2 answers, and exactly l answer must be chosen. The second question offers 5 answers, and exactly l answer musi be chosen. Thc quiz has how many possible combinations of answers?. 10 25 ACT-70C GO ON TO THE NEXT PAGE. For what value of x is the equation 2(x true?A20B100CChoice C — see source imageDChoice D — see source imageEChoice E — see source image
8Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestSource question 8. Refer to the source image.AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
9Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhat value of a will make the equation true? 4+a 9+a 19 30AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
10Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe I st term in the oeometric sequence below is -6. If it can be detern]ined, what ks the 6th term? -6, 12, -24, 48, -96, 192 144 144 192ACannot be deteimined from the 1Vell infor]nationBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
11Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIn the standard (x,),) coordinate plane, A has coordinates (-4,-9), Point A is translatcd 4 units to the right and 9 units up and labeled A,. What are the coordinates of A, ?A(-13,-13)B( -8,-18)CChoice C — see source imageDChoice D — see source imageEChoice E — see source image
12Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestA formula used to compute the volume, V, of a rectangular prism is V - livh, where l is the length of the base, w is the ,]dth of the base, and h is the height of the prism. What is the height, in centimeters. of a rectangular prism that has a volume of 510 cubic centimeters and a base that measures 5 centimeters by 12 centimeters?AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
13Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestSolar panels that produce 150 amps of electric current each are needed for a proposed space station. If the solar panels are manufactured to produce 0.75 amps per square meter of surface area, the surface area of cach solai panel needs to be how many square meters? 20 75 DO YOUR FIGURING HERE.A112.5B150C200DChoice D — see source imageEChoice E — see source image
14Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIf cantaloupes sell at $1.49 each or 3 for $3.90, how much is saved, to the nearest cent. on each cantaloupe by buyiiig them 3 at a time?A12¢B19¢C31¢D47¢E92¢
15Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following expressions is equivalent toA12a'b'B12a'b'CChoice C — see source imageDChoice D — see source imageEChoice E — see source image
16Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIn the standard (x,y) coordinate plane, the coordinates of the endpoints of DM are (11,3) and (17,15). What is the y-coordinate of the midpoint of DM ?A14B16C18DChoice J — see source imageEChoice K — see source image
17Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe distance-versus-time graph below represents Barbara Jean's walk to school on Friday. time (minutes) Which of the following statements could describe what Barbara Jean did during the time interval covered by the horizontal line segment BC ? ACT-70C GO ON TO THE NEXT PAGE.AShe walked due east.BShe walked up some steps.CShe walked on level ground.DShe walked at a faster speed.EShe stopped to talk to friends.
18Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIn the diagram below, lines m and n are cut by transversal t. Lines nt and pi are NOT parallel. Which of the following statements must be true? DO YOUR FIGURING HERE.AZl-Z2BZl-Z3C£l-Z5DZ3-Z5
19Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe expression 5 - 3(2x- l) is equivalent to: -2+4x 2-6x 8-5x 9-6xAChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
20Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following anLTle measures CANNOT be the measure of any angle in an obiuse triantsle? (Note: An obtuse triangle is a triangle that has l anole WLth a measure greater than 90° but less than 180°.) 30° 90°A60°BChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
21Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhat is the value of f(-5) when f(x) -3(x' + 3x + 2) 151+15 19 10 12 25 19 io ACT-70C 18 GO ON TO THE NEXT PAGE.AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
22Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIn the standard (x,y) coordinate plane, what LS the slope of the line with equation 3.¥ + 2y- 6 ? DO YOUR FIGURING HERE.AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
23Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following is a simplified form of 45 ? 5<5A-5BChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
24Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestA formuIa for simple interest is l = Prt, where l is the interest in dollars, P is the principal in dollars, r is the annual interest rate expressed as a decimal, and t is the time in years the money is invested. Which of the following expressions gives t when the annual interest rate is 5(YoAChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
25Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhen t= 2,005, the value of the function f(t) is 100 more than twice the value of f(t) when i- 1,998. Which of the following equations expresses this relationship. ACT-7C 19 GO ON TO THE NEXT PAGE. DO YOUR FIGURING HERE. Use the following information to answer questions 26-28. Shown below is right triangle ZSABC with the given dimensions in meters.Af(2,005) - 2f(1.998) + 100Bf(1,998) = 2f(2,005) + 100Cf(1) - 2f(i) + 100Df(t + 2,005) - 2f(t + 1,998) + 100Ef(2,005) + 100= 2f(1,998)
26Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhat is the lenoth, in meters, of BC ? 10 20 52AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
27Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following statements about the measures of the interior angles in AABC is true? (Note: MZA represents the degree measure of ZA.) niZA = InZB mZB= nizc FnZA - MZB + MZC ntZB + mZC= 180° MZA + 171ZB + mZC= 360°AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
28Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following expressions iepresents cos B ? AC AB BC AC BC AC AB BC ABAChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
29Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestGiven the functions f and g defined by f(x) = x + 3 and g(x) x + I, what is the value of flg(l)) ? 20 GO ON TO THE NEXT PAGE. ACT-7(A17BChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
30Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following expressions is equivalent to DO YOUR FIGURING HERE.A3xB9xC271DChoice J — see source imageEChoice K — see source image
31Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestMar.%ha is making a sail for a model boat. In the figure below, the sail is represented by LABC. Base BC is 18 inches long, and legs AB and AC are each 15 inches long. The mast, represented by AD, is perpendicular to the base and extends 4 inches below tbe bottom of the sail. How many inches long 18 the mast? 15 15 18A12B16C33DChoice D — see source imageEChoice E — see source image
32Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following inequalities orders the nuTnbers below fiom least to greaiest? (-3.5) < 3- < 3- ACT-70C 21 GO ON TO THE NEXT PAGE. DO YOUR FIGURING HERE. Use the following information lo answer questions 33-35. The table below gives the prices for dog orooming at Pretty Pooches. Size of dog Shampoo Haircut Small Large $20 $35 $30 $55AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
33Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestHoakoa brouoht 10 dogs to Pretty Poochcs and paid $260 to have all 10 shampooed. How many large dogs did Hoakoa have shampooed?AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
34Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestJim took his large dog to Pretty Pooches for a haircut 3 times. Jim paid full price for the first 2 haircuts, and had a coupon for the 31-d haircut, giving him a 15¥0 discount on the 3rd haircut. How inuch did Jim pay for the 3 haircuts?AS 99.75B$118.25C$137.50D$150.00E$156.75
35Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhen the owner of Pretty Pooches increases the price to have a small dog shampooed, the number of small dogs shampooed per day decreases. The expiession ax + b represents the number of small dogs shampooed in I day whenever the price is x dollars per dog. The number of small doos shampooed per day was 12 when the price in the table was in effect. The niimber of small dogs shampooed per day decreases by 2 for every $5 increase in price. What are the values of a andb? 62 20 200 ACT-70C 22 GO ON TO THE NEXT PAGE. 36. DO YOUR FIGURING HERE.AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
36Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestSource question 36. Refer to the source image.AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
37Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIn the standard (x,y) coordinate plane, what is the x-intercept of the line represented by y = _2x + 8 ?AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
38Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestA toy rocket is launched from the ground. Its height, h feet above the ground, t seconds after it is launched, is given by h 161 + 48t. During the rocket's ascent, at what value of t is the rocket 32 feet above the ground?AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
39Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following graphs illustrates the solution set for the system of inequalities 3x 2>9 and -2x>-10? empty set ACT-70C 23 GO ON TO THE NEXT PAGE.AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
40Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestA cab picks up a passenger at a point that is designated on the map as (7,-3) and is 7 miles east and 3 miles south of the cab company's hcadquarters. From (7,-3), the cab travels 4 miles due north, 5 miles due east, and then 2 mile8 due west, where the passenger 18 dropped off. Which of the following is closest to the straight- line distancc. in miles, the cab is from the cab company's headquarters? DO YOUR FIGURING HERE.A21B17C14D10
41Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestDuring a competition, a swimmer will be swimming the width of a river. from X io Y in the figure below. The swimmer wants to know how wide the river is. The right triangle shows the measurements the swimmer obtained by walking 100 feet from X to Z, sighting to Y from both points. From this siuhting, it is determined that the measure of ZZ is 40° How wide, in feet, is the liver? 40° 100 loo sin 40° 100 tan 40°A100 sin 40°B100 cos 40°C100 tan 40°DChoice D — see source imageEChoice E — see source image
42Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe figure below shows a support wire for a television transmission tower. The wire, which is fastened to the tower at a point 125 feet above the level ground: has an angle of elevation of 65° Which of the following expressions gives the length, in feet, of the wire? 125 sin 65° 125 cos 65° 125 tan 65° 125 feet 125 sin 65° 65° ACT-70C 24 GO ON TO THE NEXT PAGE.A125 tan 65°BChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
43Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestA circle is inside a rectangle 6 inches wide and 8 inches long and is tangent to 3 sides of the rectanole. What is the area, in square inches, of the circle? 67[ DO YOUR FIGURING HERE.A97[B167[C36DChoice D — see source imageEChoice E — see source image
44Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following equations represents the circle with center (2,1) shown in the standard (x,y) coordinate plane below? A(2,1) (2,-1)A(x-2)'+(y- l),B{x-C(x-2)'+(y+l)'D(x+2)'+(y+l)'E(x+2) +(y+l)'
45Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestOne of the following inequalities, where both coiistants a and b are positive real numbers, is graphed in the standard (-r,y) coordinate plane below. Which inequality is it? ci ACT-70C 25 GO ON TO THE NEXT PAGE.Ay>__x+aBy<-_x+aCy<-_x+aDy< _x+a
46Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestCircles A, B, and C have diameters of x inches, 2x inches, and 4x inches, respectively. What is the ratio of the radius of Circle B to the diaineter of Circle A ? DO YOUR FIGURING HERE.AI'.1B1.4C2.1D4.1
47Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIn trapezoid KLMN shown below, ZM measures 45° and ZK and ZN are both right angles. The given side lengths are in feet. Wbich of the followinu values is closest to the area, in square feet, of KLMN ? 18 10 45°A43B127C152DChoice D — see source imageEChoice E — see source image
48Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestFor tbe 2 O'clock hour on Milena's grandfather clock (Shown below), the bell is struck 2 times. For the o'clock hour, the bell is struck 3 times. For every hour, 2 seconds elapse between consecutive strikes of the bell. For the 9 O'clock hour, how many seconds elapse between the 1st strike of the bell and the 9th strike of the bell?A11B16C18DChoice J — see source imageEChoice K — see source image
49Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestFor positive real numbers a, b, and r such that 2a and c, which of the following inequalities is 3b true? c<b<a c<a<b a<b<c ACT-70G 26 GO ON TO THE NEXT PAGE.AbBbCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
50Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThis month, Malcolm has $100 saved, and his goal is to have a total of $310 saved 12 months from now. After adding to his savings next month, each month he will add $1 more than what he added the previous month. For the next 12 tnonths, Malcolm will not remove any money from what he has already saved. What is the minimum amount of money Malcolm must add to his savings ncxt month so that he reaches his goaL? DO YOUR FIGURING HERE.A$12B$17C$18D$26E$34
51Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestFor all pairs of nonzero real numbers a and b, the product of the complex number a + bi and which of the followinLT complex numbers is a real number? abi a+biAb+aiBl)-aiCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
52Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestFour congruent semicircles touch only at their corners, as shown in the figure below. If the paih from A to B along tbe diaTncters of the semicircles is l 00 centimeters long, how many centimeters long is the path from B back to A along the arcs of these semicircles? 25 507[ 150A1007tBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
53Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestFor all a > I, which of the folIowing statements describes the function g defined by g(x) ACT-70C 27 GO ON TO THE NEXT PAGE.Ag is constant for all xBg is increasing for x > OCg is decreasing for x > ODg is increasing for O < x < l and decreasing for x > IEg is decreasing for O < x < l and increasing for x > I
54Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestA magnet attracts a nail with a force that varies inversely with the square of the distance between them. The nail is 12 inches from the magnet. How many inches from the magnet would the nail need to be to have twkce as much attractive force on it as it currently has? DO YOUR FIGURING HERE. 6<2A12xf2BChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
55Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhat is the area, in square meters, of a rhombus (a parallelogram having 4 congruent sides) with side length 4 meters and 2 angles that each measure 600 ? 8%f3A16<3B24C48DChoice D — see source imageEChoice E — see source image
56Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestThe right triangle shown below with hypotenuse 13 inches long and vertical leg 5 inches long is rotated 360° around the vertical leo to form a right circular cone. What is the volume of this cone, in cubic inches? (Note: V I Ph, where V is the volume, r is the radius, and IT is the heigbt.) 80 13 407C 320 240A960BChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
57Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following fractions is equal to 20 22 11 10 li 10 li, 21 ACT.7CC 28 GO ON TO THE NEXT PAGE.AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
58Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestWhich of the following is equal to tan 8 cos g when sin0= andO<O< DO YOUR FIGURING HERE. 2if5 2<5AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image
59Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestAn equilateral triangle is partitioned into 4 smaller congruent equilateral triangles. What is tbe ratio of the perimeter of l of the smaller trianoles to the perimeter of the original triangle?AChoice A — see source imageBChoice B — see source imageCChoice C — see source imageDChoice D — see source imageEChoice E — see source image
60Tools:★✎▥Paper 51 · ACT June 2012 · Form 70C · Math TestIf Ixl -x, which of the following statements must be true? x<0 x#0 x is not a real nurnber. END OF TEST 2 STOP! DO NOT TURN THE PAGE UNTIL TOLD TO DO SO. DO NOT RETURN TO THE PREVIOUS TEST. ACT-70C 29AChoice F — see source imageBChoice G — see source imageCChoice H — see source imageDChoice J — see source imageEChoice K — see source image