math

  1. In which situation are unbalanced forces acting on an object? (1 point)

    Two people stand on the same side of a large tire. Both people pull the tire with equal force. Two people stand on the same side of a large tire. One person pushes the tire and the

  2. Let f be the function with f(0) = 1/ (pi)^2, f(2) = 1/(pi)^2, and the derivative given by f'(x) = (x+1)cos ((pi)(x)). How many values of x in the open interval (0, 2) satisfy the conclusion of the Mean Value Theorem for the function f on the closed

  3. Rectangular cards,2 inches by 3 inches,are cut from a rectangular sheet 2 feet by 3 feet.What is the greatest number of cards that can be cut from the sheet?

  4. Jason is considering purchasing a new machine to make plastic silverware. The machine produces 1,000 pieces of silverware in two hours. One box contains 50 pieces of silverware and sells for $3.00.

    If the machine costs $9,000, and runs for 24 hours a day,

  5. when the price of an item was increased by sh.5, i bought 2 items fewer with sh 200. what is the current price of the item?

  6. a runner jogs 12 km north then turns and runs 16 km east in three hours.what is his displacement

  7. Compare the function with the parent function. What are the vertex, axis of symmetry, and transformations of the given function? y = |10x-2| -7

  8. A number divided by 5 gives 9 less than twice the number.Find the number.

  9. a pronghorn antelope can travel 105 miles in three hours.if it continuedntraveling at the same speed,how far could a pronghorntravel in 11 hours

  10. The sum of two numbers is 45 and the mean proportional betweem them is 18.the numbers are

  11. of a^2+b^2=2ab, prove log[(a+b)/2]=1/2(loga+logb)

  12. The lateral area of a cone is 400 pi cm^2. The radius is 10 cm. Find the slant height to the nearest tenth.

  13. arnie has between 300 and 400 stickers in her collection. when she divided them into groups of 4, 5, or 9, there is always one sticker left over. how many stickers does arnie's collection contain?

  14. the difference between three quarters and three fifths of a number is 9 determine the number

  15. How many arrangements can be made using 4 letters of the word HYPERBOLAS if no letter is to be used more than once?

  16. Terms of sequences

    15,22,31,42,55 find next 3 terms and the formula also for the sequence

  17. If a lab technician has a salary of 22000 her first year and is due to get a 500 raise each year, then what will her salary be in her seventh year?

    What is the total salary for 7 years of work for the lab technician?

  18. Ernest can walk a distance of 5 miles in 75 minutes. Which is the simplest form of 5/75

  19. two complementary angles are drawn such that one angle is 10° more than seven times the other angle find the measur of each angle

  20. 1.sarah is making her own halloween coustume. the costume requiers 2 5/8 yard of materials write the number of yards needed for sarahs halloween costume as an IMPROPER fraction.

    a 7/8 yards b 5/4 yards c 7 yards d 21/8 yards

  21. 1. Find the area of a parallelogram with base b and height h.

    b = 87 cm h = 18.6 cm (1 point) 105.6 cm2 211.2 cm2 809.1 cm2 1,618.2 cm2 2. Find the area of the triangle. A triangle has a base of 21 yards and a perpendicular height of 8.2 yards. (1 point)

  22. When 6 gallons of gasoline are put into a car's tank the indicator goes from 1/4 of a tank to 5/8. What is the total capacity of the gas tank?

  23. harun and kuna competed in a 200-m race.harun ran at a speed of 5 m/s.kuna ran at a speed of 8 m/s.if they started at the same time,

    a.find the time kuna took to reach the finishing line. b.how far was kuna from harun when kuna reached the finishing line?

  24. A dog starts chasing a cat when they are 12 meters apart. For every 7 meters that the dog runs, the cat runs 4 meters. How far does the dog have to run to catch up to the cat?

  25. a red light winks every 6 seconds, a white one every 10 seconds, and a green one every 14 seconds. how often they wink together?

  26. Two cars are side by side. One is 3.9 meters long. The other is 6% shorter. How long is the second car?

    I know the answer is 3.7, but how?

  27. A car travels 172 miles using 7 gallons of gas. At that rate, how far can the car travel using 42 gallons of gas ( i got 1,032 ) answers to choose:1,032 miles

    1,548 miles 1,204 miles or 1,376 miles

  28. Jeff find some bugs. He finds 10 fewer grasshoppers than crickets. He finds 5 fewer crickets than ladybugs. If Jeff finds 5 grasshoppers, how many ladybugs does Jeff find? How many crickets does he find? Write two equations to solve the problem.

  29. If p and q are real numbers such that p>5 and q>4, what is the smallest integer larger than the product of pq?

    a. 9 b. 10 c. 19 d. 20 e. 21

  30. solve each equation.write each equation in simplest form

    7x/8=21 a.24 b.18.375 c.1.857 d.19

  31. 108 is 36% of what number? Write and solve a proportion to solve the problem.

    First write the proportion to find the missing value, which I will replace it with n. 108/n = 36/100 Next write the cross products. So, 36n = 108 x 100 = 10,800 divide each side

  32. 1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)?

    a) -3 b) -2 c) -1/3 d) 1/3*** 2) a line has slope -5/3. Through which two points could this line pass? a) (12, 13),(17, 10) b) (16, 15), (13, 10)*** c) (0,7), (3, 10) d)

  33. what is the reciprocal of 9/11?

  34. As viewed from above, a swimming pool has the shape of the ellipse

    (x^2)/4900+(y^2)/2500=1, where x and y are measured in feet. The cross sections perpendicular to the x-axis are squares. Find the total volume of the pool.

  35. What phrase or situation could be represented by the expression 2 - 4t?

  36. order the numbers 0.64, 2/3, 65%, and 7/10 from least to greatest

  37. 1. what are the equivalent fraction and decimal for 33 1/3% ?

    a 1/33 and 0.3 b 1/33 and 3 c 3 1/3 and 0.00 d 1/3 and 0.33 <-- my answer 3. Estimate 78% of 20 a 14 b 16 c 19 d 2 (help??)

  38. 1. Which angles are adjacent angles?

    (1 point) ∠GBM and ∠FBC ∠CBX and ∠FBC ∠XBG and ∠FBC ∠MBY and ∠FBC 2. The measure of ∠3 is 101°. Find the measure of ∠1. (1 point) 101° 106° 74° 79° 3. Is line l parallel to line m? Explain. Note:

  39. 1. QTR and ______ are complementary.

    QTS * RTS PTN QT 2. QTN and _____ are supplementary. QTS QTP * RTS PTR 5. PTN is adjacent to _____. QTR PTS RTS NTS *

  40. If I make 9 brownies with 2 cups of cocoa and ! cup of sugar, how many cups of sugar do I need for 81 brownies?

  41. Which of the following statements is always true of similar polygons? (1 point)

    Corresponding angles of similar figures have the same measure. The lengths of corresponding sides form equivalent ratios. The lengths of corresponding sides have the same

  42. write a ratio the situation in three ways comparing the first quantity to the second quantity.

    A zoo has 17 monkeys and 12 chimpanzees. A. 12 to 17, 12:17, 12/17 B. 17 to 12, 17:12, 17/12 C. 17 to 22, 14:22, 17/12 D. 17 to 12, 12:17, 17/12

  43. A recipe for 24 cookies calls for 6 tablespoons of sugar. If you make 36 cookies and use 10 tablespoons, will the cookies taste the same? Explain

  44. If a pebble is dropped into a pond in the shape of an ellipse at the location of one focus, the waves will converge at the location of the other focus. If the pond has a major axis of 68 feet and a minor axis of 32 feet, how far apart are the foci?

    the

  45. Graph the equation in the rectangular coordinate system.

    -5y = -40 How should the line be going?

  46. April is training for a marathon by running no less than 55 km per week. She runs at an average rate of 10 km per hour. What is the minimum number of hours, h, she should run?

    10h ≥ 55; h ≥ 5.5; 5.5 hours 10h ≤ 55; h ≤ 5.5; 5.5 hours h over ten >

  47. 1: What is the amount of sales tax owed on a $39 jacket if the tax rate is 5%?

    A)$1.85 B)$1.90 C)$1.95 <---- D)195.00 2:A flower arrangement was marked down 12.5%. If the flowers originally cost $20, what is the amount of the discount? A)$2.40 B)$2.50 <----

  48. You win $4 if you flip a coin twice and get tails both times. For any other outcome you get nothing. What is the expected value?

  49. A package of spaghetti weighs 266 grams. How many ounces does the package weigh? 1 oz = 28 g

  50. In the order of operations what operation is completed first?

    A. addition B. multiplication C. subtraction D. parentheses*** (I think its D because of PEMDAS)

  51. Translate the following statement into an inequality: Five less than a number is at least nine.

  52. solve the equation -9p - 17 = 10

    plz help

  53. Manny makes dinner using 1 box of pasta and 1 jar of sauce. If pasta is sold in pckages of 6 boxes and sauce is sold in packages of 3 jars, what is the least number of dinners that Manny can make without any supplies left over?

  54. 1. 7 1/2 divided by 3 3/4

    2. 9 divided by 2 1/4 3. Sean runs 3 1/2 miles in 28 minutes. How long does it take him to run 1 mile? 4. 8 1/4 pounds of flour are used to make 4 1/8 papier-mache paste recipes. How much flour is used to make 1 recipe? 5. An

  55. i am a number between 60 and 100. my ones digit is two less than my tens digit. i am a prime number. what number am i? explain.

  56. leslie decides to join a gym . she must pay a monthly fee plus a one -time fee to open a membership. This situation can be modeled by the expression 55x + 80 . explain how each number and letter in the expression relates to the problem .

  57. Last Wednesday it snowed 3 1/4 in. On Sunday it snowed 3 4/5 in. On which day did it snow more? How much more?

  58. 1.During the soccer season, Michelle attempted 130 goals and made about 70% of them.

    a. How many goals did Michelle make? b. The team made a total of 456 goals. What percent of the teams made goals did Michelle make? 1. 13 goals; 2.85% 2. 39 goals; 85.5% 3.

  59. 1. Find the length of the hypotenuse of a right triangle with legs of 9 cm and 12 cm

    A. 8 cm B. 21 cm C. 15 cm D. 225 cm the length of the hypotenuse of a right triangle with legs of 13 cm the length of one leg is 5 cm find the length of the other leg A. 14

  60. Simone measures the width of one cardboard strip as 1/2 yd. A second cardboard strip measures 5/6 yd in width. Estimate the combined width of the cardboard strips.

    A. about 1/2 yd B. about 1 yd C. about 1 1/4 yd D. about 1 1/2 yd I don't understand which is

  61. A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110 ft, and the distance around should be no more than 380 ft. Write a system of inequalities that models the possible dimensions of the garden.

  62. Patsy has cheerleading practice on every fourth school day. She wants to be in the school play, but they have practice on every sixth school day. If both started on September 5th, what would be the first date that she has to choose between cheerleading and

  63. The radius r of a sphere is increasing at the uniform rate of 0.3 inches per second. At the instant when the surface area S becomes 100pi square inches, what is the rate of increase, in cubic inches per second, in the volume V?

  64. 3. write three ratios equal to 5/40

    - 2/14, 3/21, 4/28 - 1/8, 2/16, 3/27 - 5/40, 5/45, 5/50 5. write a u nit rate for the situation. round to the nearest hundreth if nesisaary: traveling 426 miles in 7 hours - 85.2 miles/hour - 71 miles/hour - 0.0426

  65. Dog Debate

    UNIT NAME: EQUATIONS AND INEQUALITIES Directions: The traditional method for calculating a dog's age in dog years is to multiply its age in human years by 7. The chart below describes a different method some veterinarians use to estimate a dog's

  66. "It takes Juwan exactly 35 minutes by car to get to his grandmother's. The nearest parking area is 4 minute walk from her apartment. One week he visited more often. He realized that he spent 5 hours and 12 minutes traveling to her apartment and then back

  67. A set of data items is normally distributed with a mean of 70. Convert the data item to a z-score, if the standard deviation is as given.

    data item: 80; standard deviation: 15

  68. Translate the phrase "nine more than two times a number" into an algebraic expression

  69. If Jason spends 2 two-thirds hours more at the camp, he will complete 7 hours of camp counseling. How many hours has he worked as a counselor so far?

  70. Your local gas stations are having a price war. During the past 7 days they have lowered the price of regular gas by $.02 each day. Define a variable. Then write and solve an equation to find the total change in gas price. Show your work.

    n-7x$0.2 n-$1.4 it

  71. Which ratio forms a proportion with 9/15?

    (A)6/10 (B)16/21*^* (C)36/50 (D)45/70 If my answer was incorrect don't yell at me, just correct me please.

  72. James has a model heicopter. the model is 8 inches long and 7 inches wide. the actual helicopter is 56 inches long. what is the helicopter's actual width, if we assume the model's proportions are accurate?

    40 inches 49 inches@@@@ ^&^^^^^^^^^^^^ 56 inches 60

  73. If a and b are parallel lines and m 3 = 128º, what is the measure of 8?

    134º 54º 52º 49º

  74. how many diferrent 9-letter words (real or imaginary) can be formed from the letters in the word ECONOMICS?

    the ans. must be 90,720

  75. can somebody show me how to do this?

    at what point on the graph of y= 3^x +1 is the tangent line parallel to the line y= 5x -1 ?

  76. A newly-opened restaurant has 5 menu items. If the first 4 customers each choose one menu item uniformly at random, the probability that the 4th customer orders a previously unordered item is a/b, where a and b are relatively prime positive integers. What

  77. find the product in simplest form

    1. 20 * 3/5 please help thankyou

  78. for questions 1 and 2 chose the equation or proportion that you can use to solve the problem

    what number is 73% of 215 A( 215=0.73n B( n=0.73 X 215 C( 0.73=n X 215 D( 215=73n what percent of 94 is 23 A( n/94=23/100 B( 23/94=n/100 C( 94/n=23/100 D(

  79. IN a scale drawing each side of a pentagon is 1.9 cm long. what is the perimeter of the actual object when the scale drawing is 1 cm=6.5

  80. If the legs of a right triangle have lengths of 6 inches and 8 inches, what is the length of the hypotenuse in inches?

    A.11 B.13 C.10 D.16 Is the answer C?

  81. 1.Which of the following numbers are equivalent to 20%? CHOOSE ALL THAT APPLY.!!

    A. 0.002 B. 1/4 C. 0.20(I PICK THIS) D. 1/5(I PICK THIS) 2.which of the following numbers are equivalent to 35%?CHOOSE ALL THAT APPLY !! A. 7/20 B. 6/20 C. 3.5 D. 0.35 (I KNOW

  82. to graph C(3,2) on a coordinate plane Translate the point left 3 units and down 1 unit.Graph the image point C.

    A. x,2,y3=x,1,y,1 B. x,2,y2=x,1,y,1 C. x,2,y3=x,1,y,1 D. x,3,y2=x,1,y,1 Is the answer D? Thank you

  83. During the soccer season, richard attempted 80 goals and made about 65% of them.

    a. How many goals did Richard make? b. The team made a total of 327 goals. What percent of the team's made goals did Richard make? 15 goals;24.5% 52 goals;15.9% 61 goals;49.2%

  84. What does it mean to solve an equation, have the variables cancel out, and have the answer be 3=3

  85. What is the ratio of 4/5 to 7/15?

  86. which matrix represents the system of equations below -12x-13y+13z=15

  87. 2 1/4 r= 10 a.4 2/5 b.4 3/4 c.4 4/9 solve for r

  88. Find the value of this integer expression: − 2(+ 3 +− 4 +− 8 ++ 7) .

    With Distribution and without Distribution.

  89. Lucy is thinking of a number. The number is greater than two hundred twenty-five. Her number is less than 2 hundreds 2 tens 7 ones. What is Lucy's number?

  90. A rope goes from one building to another. The distance between the buildings is 12m, and the rope is tied at each building at a point 8m and 3m from the ground. Find the length of the rope.

  91. a political discussion group consists of five Democrats and six Republicans. Four people are selected to attend a conference.

    A.in how many ways can four people be selected from this group of eleven? B.In how many ways can four Republicans be selected from

  92. At the half time show, a marching band marched in formation. The lead drummer started at a point with coordinates (-2,-5) and moved 3 steps up and 1 step right.

    a: write a rule to describe a translation b: what were the coordinates of the drummers final

  93. On Monday the temperature was 50 degrees the temperature increased by 22%. what was the temperature on Tuesday.

    72 degrees 65 degrees 56 degrees 61 dgrees

  94. While shopping, you purchase 4 pairs of jeans, 6 shirts, and 3 pairs of shoes. How many different outfits will you be able to make using one pair of jeans, one shirt, and one pair of shoes?

    13 22 60 72

  95. a certain brand of powdered milk is advertised as having a net weight of 250 grams. if the net weights of a random sample of 10 cans are 253, 248, 252, 245, 247, 249, 251, 250, 247, 248 grams. can it be concluded that the average net weight is less than

  96. Find

    dy/dx and d2y/dx2. x = et, y = te−t

  97. A train starting at 11 am travels east at 45 km / hr while another starting at 12 noon from the same point trivels south at 60 km / hr . how fast the train separating at 3 p. m

  98. I NEED HELP

    In a survey four out of the seven people named blue as their favorite color one out of three named red. If 1092 people were included in the survey how many named neither blue nor red as their favorite color A)192 B)104 C)148 D)212

  99. In a family with 4 children what is the probability of having 1 boy and then 3 girls, in that order? (Exclude multiple births and assume all outcomes are equally likely).

    In a family with 4 children, what is the probability of having 1 boy and 3 girls, in

  100. find a commission on a $1,250 sale with a commission rate of 5%. $62.50 $6.25 $75.00 $125.00 HELP PLSSS