# Math

1. Math
A trapezium PQRS is such that QR=4cm,PS=8cm angelPQR=105°angelSQR=135°QR//PS.if the height of the trapezium is 5cm use a ruler and a pair of compasses to construct trapezium PQRS
2. math
This was a question asked yesterday that I am stuck on also -- could you explain how to solve this using this "log" on the calculator please? I'm working on a problem where I was given a table and had to find the exponential equation of best fit. The table is about the number ...
3. Math
You draw five cards from a standard deck of 52 cards. P(hearts) = 4/5. What type of probability is illustrated and why? I need help on this and can’t figure it out
4. math
what is One more than the quotient of a number xxx and 444 in an expression?
5. math
A family has a rectangular backyard that measures 2x + 3x by 3x - 5. they are building a square patio with side lengths that measure x + 2. write an expression for the area of grass that will be left in the backyard after the patio is built
6. math
There is a 60% chance that a final year student would throw a party before leaving school, taking every 50 student from a total of 150. What is the mean value and variance
7. Math
Find a function g(x) such that all the conditions of the fixed point theorem are satisfied on [0,1]
8. Math
Express 12g as a decimal of 1kg
9. Math
A magician's stage has a trap door. a. The total area of the stage can be represented by x^2++27x+176. Write an expression for the width of the stage. b. The area of the trap door is 12 suare feet. Find the value of x. c. What fraction of the area of the stage is the area of ...
10. Math
A helicopter drops a box of supplies after a disaster. The function represents the height y (in feet) of the box t seconds after it is dropped. After how many seconds does the box hit the ground? y=100-16t^2
11. Math
In a triangle what is always opposite of the shortest side?
12. Math
0.5% of what number is 25?
13. Math~Ratios
Find the Value that makes the pair of ratios equivalent. 12:42, 2:x 8 7* 6 5
14. Math
The circumference of the base of a cylinder is 16π centimeters. The height of the cylinder is 10 centimeters.What is the surface area of the cylinder?
15. Math
The dimensions are 20 ft by 50 ft the garden is to be increased by equal amounts. The new area will increase by 1800 Sq ft. SO the new dimensions would be 40 x70 this would equal 2800 Sq ft???????
16. Math
The triangle and the trapezoid have the same area. Base b2 is twice the length of base b1. What are the lengths of the bases of the trapezoid? What do you do after you find the area of the triangle? Triangle: base=21 cm, height=6cm Trapezoid: height=6 cm, b1=?, b2=?
17. Math
Two billion six hundred million in expanded notation using power of 10
18. Math
Stem-and-Leaf plots Use stem-and-leaf plot to answer questions 1-3 ----|----- 5| 4, 5 6| 0, 6, 9 7| 2, 3, 4, 5, 5 8| 1, 2, 8, 9 9| 5, 6 Key: 5|4 = 54 1. What is the range of data? A. 40 B. 42 ** C. 54 D. 96 2. What is the median of the data? A. 64.5 B. 72.5 C. 74.5 D. 75 ** 3...
19. math
look at the given rectangle. write a polynomial expression in simplest form for the perimeter of the rectangle.
20. Math
Part A: A coach chooses 3 players from the 12 players on the team to be in a team photo for the newspaper. Which expressions represent the situation? A: 3C12 B:12·11·10 over 3·2·1 C:12! over 13! D: 12P3 over 3! Part B: How many groups of 3 players are possible? A:36 B:72 C...
21. Math
Could someone please help me with these problems? I've been working on them for a long time, but I'm not sure if I'm right 1. 12 x (-4) x (-5) Is the answer -32? 2. -18 divided by (-2) is the answer -9?
22. Math
how do I find 3/8 of 24
23. math
Sally and Kate stand some distance away from a building which is 10m high. Sally measures the angle of elevation of the top of the building to be 35(degree). From Kate's position, the angle of elevation of the top of the building is 50(degree). If the angle SOK between Sally, ...
24. math
A bag is filled with yellow and orange marbles. There are 97 marbles in the bag. If there are 25 more yellow marbles than orange marbles, find the number of yellow marbles and the number of orange marbles in the bag.
25. math
I'm working on a problem where I was given a table and had to find the exponential equation of best fit. The table is about the number of views of videos. The equation is y = 12.0143(1.7498)^x I had to estimate the number of views after 2 weeks and that is 30,307 views. The ...
26. Math
which ordered pair is a solution of the inequality y≥4x - 5 (3,4) (2,1) (3,0) (1,1)
27. math
A parabola passes through the point (3, 5) on its way to the vertex at (7, 11). Determine the equation in vertex form that represents this parabola.
28. Math
1. The ratio of the width to the of a rectangular garden is 2 to 3. Which of the following could be the width and length of the garden? A. Width = 12 feet, length = 13 feet. B. Width = 18 feet, length = 12 feet. C. Width = 24 feet, length = 39 feet. D. Width = 12 feet, length...
29. Math
Find the area of the parallelogram determined by the vectors v and w where v=2i+3k and w=2j-3k. Area? If a=i+1j+k and b=i+5j+k, find a unit vector with positive first coordinate orthogonal to both a and b. _i+_j+_k?
30. Math
Answer the question by referring to the advertisement: Multi-System CTV was \$2198 is \$1798 or \$55 x 38 no deposit What is the rate of simple interest charged for hire purechase?
31. Math
let OA,OB,OC be 3 mutually perpendicular lines through the origin whose direction cosines are<l1,m1,n1>,<l2,m2,n2>,<​;l3,m3,n3>.if OA=OB=OC=a find equation of plane ABC
32. Math
let OA,OB,OC be 3 mutually perpendicular lines through the origin whose direction cosines are<l1,m1,n1>,<l2,m2,n2>,<​;l3,m3,n3>.if OA=OB=OC=a find equation of plane ABC
33. math
Plz i need your help how to solve and arrive to the answer# A richman wants to earn one million shillings in 10 years. What amount should he invest in the bank if the interest rate is 2.5% per year?
34. Finance Math
Jason Bradley’s uncle, Maurice, is buying a \$248,500 home in Mississippi. His mortgage lender requires a 20% down payment and will finance the remainder for 30 years at 5%. Closing costs will be 1% origination fee, 1 ¼ point, mortgage insurance premium of \$2,400. Other loan...
35. Finance Math
Tristan Sandino was given a 20-year bond when he was twelve years old and would like to sell it on his 21st birthday. The bond has a coupon rate of 4.8% and was purchased for \$580. Tristan receives interest checks every six months. If Tristan sells the bond for \$1,040, less ...
36. math
Given that f(x) = -5x + 8 a. Find f^[-1](x) b. Find f(3) c. Find f^[-1](3) Thank You!!
37. Math/Statistics/Probability
Leroy and Fred play chess at a club every Wednesday. The probability that Leroy will lose is .3, that he will stalemate is .5, and that he will win is .2. The probability that Fred will lose is .25, that he will stalemate is .4, and that he will win is .35. What is the ...
38. Math
A particular fraction has a prime number in the numerator and a different prime number in the denominator. Justify whether or not this fraction can be simplified and give reasons.
39. MATH
The volume of a cone shaped hole is 16 pi ft^3. If the hole is 3 ft deep, what is the radius of the hole?
40. Finance Math
Sweets Bakery makes fat-free cookies that cost \$1.70 each to prepare. Sweets expects 20% of the cookies to be imperfect. Sweets wants a 40% markup on cost and produces 150 cookies. Assume that Sweets can sell the broken cookies for \$1.60 each. What should Sweets charge for ...
41. math
the ratio of boys to girls is 4:5. i there are 72 children on the playground how many were boys
42. math
Every great circle of a sphere passes through its center. true or false?
43. math
Why can't 3/7 be written as a terminating decimal
44. Finance Math
Wholesale Distributors sells to its contractors with a 42% markup on cost. If the selling price for cabinets is \$9,182, what is the cost to contractors based on cost? (Round your answer to the nearest cent.)
45. math
A recycling center pays 25 cents per aluminum can recycled at its facility. If Tracy recycles 5 aluminum cans there, how many dollars will she earn?
46. Educational Perspectives,
In which of the following play centers do young children learn to engage in symbolic play when they substitute objects for real ones, sequence events, and learn use of currency? A. Library B. Block C. Math D. Dramatic play my answer is d.
47. math
In a survey of 85 people, every fifth person had a pierced car. How many people had a pierced car? Which calculation would help you to find the answer? 0.5*85 85* 1/5 5+85 85- 4/5 85*0.25
48. math
#Plz i need your help guys (the answer for this question)# If you deposit sh. 100,000 in a bank which gives 12% interest rate per year. How much will you earn after 1 year and 6 months? Steve yesterday at 5:42am That would be 100000 * .12 * 1.5 kelvin yesterday at 12:13pm Why ...
49. Math
Find the number of ordered quadruples of positive integers (a,b,c,d ) such that ab +cd =10.
50. Math
I need help checking my answers. Which of the following is a true statement? A. It is possible for two rectangles to have the same area, but only if they have the same perimeter. B. It is possible for two rectangles to have the same area without having the same perimeter. C. ...
51. Math/Calculus
The region R is bounded by the x-axis, x = 2, and y = x^2. What expression represents the volume of the solid formed by revolving R around the line x = 2? It seems that I'm not allowed to post images, so I will try to type out my answer: ∫[0, 4] π * (2-√y)^2 dy Can anyone...
52. Math
Write z = 2(sqrt)2 + 2(sqrt)2i in polar form. z = 4(sqrt)2 (cos pi/4 + i sin pi/4) z = 4 (cos pi/4 + i sin pi/4) z = 4 (cos 5pi/4 + i sin 5pi/4) z = 4 (cos pi/2 + i sin pi/2) Write z = -6i in polar form. z = 6 cis 3pi/2 z = 6 cis pi/2 z = -6 cis 3pi/2 x = 6(sqrt)2 cis 3pi/2 I'...
53. math
A city planning engineer in Cleveland must check the 10 angles that make up the three intersections on the map of downtown. If any of the angles formed by the intersections of the streets is greater than 135°, different road signs have to be used due to a new rule created by ...
54. math
A radio commercial for a used car company offers loans at "20 cents today for every \$800 borrowed" to purchase a car What annual rate is the car company charging? a= 3% b= 6% c= 9/2% d=8% e=9%
55. math
which number has the same value select all that apply (-9) (-6) (4) (6) I need answers plz
56. Math
The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. Compare the ages of the patients of Doctor 1 and Doctor 2 using the mean and median of each data set. Ages of doctor's patients Doctor 1 Doctor 2 | 3 | 5 920 | ...
57. Math
The ratio of the width to the length of a rectangular garden is 2:3 which of the following could be the width and length of the garden? PLEASE HELP THIS IS FOR MY ENED OF YEAR FINAL!!!!!! W=12 L=13 W=18 L=12 W=24 L=39 W=12 L=18
58. math
PWEESE HELP. There are 18 boys and 12 girls in math class. What is the ratio of girls to total students? 18:30 12:30 30:12 30:18
59. math
Two teams of workers were scheduled to produce 680 parts in a month. The first team produced 20% more parts than planned and the second team produced 15% more than planned. The two teams together produced 118 parts more than planned. How many parts was each team supposed to ...
60. math
#Plz i need your help guys (the answer for this question)# If you deposit sh. 100,000 in a bank which gives 12% interest rate per year. How much will you earn after 1 year and 6 months? Steve today at 5:42am That would be 100000 * .12 * 1.5 kelvin today at 12:13pm Why is it ...
61. math
to play the nickel game a player tosses two coins at the same time if both coins land tails then the player wins \$1 if both coins land heads up then they win \$2 suppose you play this game 12 times and it costs \$1 to play how much money could a player win or lose explain your ...
62. math
#Plz i need your help guys (the answer for this question)# If you deposit sh. 100,000 in a bank which gives 12% interest rate per year. How much will you earn after 1 year and 6 months?
63. math
Find the radius and the diameter to the nearest hundredth when C = π yd. Use 3.14 for π.
64. Math
For some k>0 the lines 50x+ky=1240 and ky=8x+544 intersect at right angles at the point (m,n).find m+n.
65. math
choose an appropriate metric unit for the mass of a paper clip A meter B gram C kilogram D centimeter SOMEONE ANYBODY MRS SUE HELP plz......
66. Finance Math
Icelandic skis are marked up 75% on cost. What is the equivalent rate of markup based on selling price?
67. Finance Math
Miguel purchased a \$51,000 RV for the family. The dealer told Miguel that there is a 30 percent markup on selling price for this type of vehicle. a.) What was the amount of the dealer’s markup? b.) What was the dealer’s original cost?
68. Finance Math
Jose’, store manager for SportsHaven, does not know how to price a GE freezer that cost the store \$580. Jose’ knows his boss wants a 25% markup on selling price. How much should Jose’ price the freezer?
69. Math
For some k>0 the lines 50x+my=1240 and my=8x+544 intersect at right angles at the point (m,n).find m+n.
70. math;)
Casey and Tamary are standing 14 ft. apart from each other and looking up at a kite that is flying between them. Casey is flying the kite on a 70 ft. string at an angle of 72 degrees with the ground. How far is Tamary from the kite? a. 73.1 ft. b. 67.0 ft. c. 75.5 ft. d. 69.2 ft.
71. math
ms. sue, i really need help with this question i dont understand it For all real numbers b and c such that the product of c and 3 is b, which of the following expressions represents the sum of c and 3 In terms of b A. b+3 B. 3b+3 C. 3(b+3) D. B+3/3 E. b/3+3 please help ms. sue
72. math
A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 63 months and a standard ...
73. math
put 28 meters 2 meters 4 meters 8 meters and 7 meters from highest to lowest
74. math;)
Show that sin(x+pi)=-sinx. So far, I used the sum formula for sin which is sin(a+b)=sin a cos b+cos a sin b. sin(x+pi)=sin x cos pi+cos x sin pi I think I am supposed to do this next, but I am not sure. sin(x+pi)=sin x cos x+sin pi cos pi If that is right then I am not sure ...
75. math;)
What is a simplified form of the expression (sec^3 theta) - (sec theta/cot^2 theta)? a. 0 b. sec theta-tan theta c. cos theta d. sec theta***** Every time I attempt to work out this problem I end up with one. I know the answer is sec theta, but I do not know how to get there. ...
76. Math
if you spin the spinner below twice, what is P(vowel, then Q)? There is a spinner with 6 spaces, 3 being vowels. A.1/10 B.1/9 C.2/9 D.1/12 At first i thought it was D but now i don't know.
77. Math
10. Bicycle speedometers are programmed based on the number of revolutions the wheel turns per second. A bike wheel spins 480 times in 1 minute. What is the rate per second? a. 1 revolution per second b. 8 revolutions per second c. 60 revolutions per second d. 480 revolutions ...
78. Math
What is a simplified form of the expression [sec^2x-1]/[(sinx)(secx)]? a. cot x b. csc x c. tan x***** d. sec x tan x I think this is the correct answer, but I do not understand why. Can someone please explain?
79. Math
A balloon is inflated by gas and the volume is given by the formula 4/3 πr^3 cm^3 how fast is the balloon inflated when it reaches 5 seconds?
80. Math
The shopkeeper has 75 3/4 kg of sugar and sold 1/4 of it, find the amount of sugar sold.
81. Math
A doctor orders a dosage of 5 ml of medicine every 4 hours for 8 days how many fluid ounces of medicine should be purchased Help sole
82. Math
Kevin mowed 6 lawns in 8 hours. What was his rate of mowing in hours per lawn?
83. Math
The students in Mrs. Garcia's class will sell magazine subscriptions to raise money for the new playground equipment. The statistics from the magazine company show that one out of every 5 people asked will buy a subscription. Based on the company's statistics if Marcia asks ...
84. Math
Find the consumer surplus at the equilibrium point.(I keep using the formula listed below but get a completely different answer from what the book says. I am a visual person so please show me step by step so I can see where I went wrong. D(x)=(x-6)^2 ; x=3 Formula: D(x)-QP The...
85. Math
In the expression shown, w represents a rational number. 5w What value of w makes the expression equal a number less than 5? A. 3/4 <<<< B. 1 1/6 C. 5/5 D. 5/4
86. math
Solve- 4x^2-9x+3=0 What is the smaller answer? Answer -1000 if there is no real value of x that solves this equation Answer must be +,- 1.0%
87. Math - AP Calculus
The rate at which water flows into a tank, in gallons per hour, is given by a differentiable, increasing function R of time t. The table below gives the rate as measured at various times in an 8-hour time period. t (hours) 0 2 3 7 8 R(t) (gallons per hour) 1.95 2.5 2.8 4 4.26 ...
88. math
Determine whether each statement is true or false. A chord that contains the center of the sphere is a diameter of the sphere. A tangent of a sphere is a line that intersects a sphere in exactly two points.
89. math;)
The equation 2sinx+sqrt(3)cotx=sinx is partially solved below. 2sinx+sqrt(3)cotx=sinx sinx(2sinx+sqrt(3)cotx)=sinx(sinx) 2sin^2x+sqrt(3)cosx=sin^2x sin^2x+sqrt(3)cosx=0 Which of the following steps could be included in the completed solution? a. cos^2x-sqrt(3)cosx-1=0 b. sin^...
The rate of bacteria growth in a laboratory experiment was measured at 11% per hour. If this experiment is repeated and begins with 6 grams of bacteria, how much bacteria should be expected after 15 hours? Round to the nearest tenth of a gram.
91. Math
Which expression shows how many 3/8 pound hamburger patties can be made from 4 1/3 pounds of ground beef? A. 4 1/3 x 3/8 B. 4 1/3 divided by 3/8 <<<< C. 3/8 x 3/1 D. 3/8 divided by 13/3
92. math
The circle above has an area of 36 in2. What is the area of the yellow sector? Use 3.14 for .
93. math help
can you help me solve the equation 3x - 3 = -18?? PLZ HELP MEEEE
94. Math
Calculate the area of the composite figure, which is not drawn to scale. 17cm 10cm 22cm 17cm 19cm.! I have an answer but I was told by my teacher it was wrong, If anyone could give me the steps to solving it I'll be perfectly happy! :-) thank you
95. Math
You have 3/4 cup of salsa for making burritos. Each burrito requires 1/8 cup of salsa. How many burritos can you make? A. 6 <<< B. 8 C. 10 D. 12 Am I correct? Please help!!
96. Math
Scott spent \$6.24 on pet food. The food costs \$0.24 per cup. How many cups of food did he buy? A. 2.6 B. 0.26 <<< C. 26 D. 260
97. math
calculate the value of a,a and c in d ABC given that b=17.23cm,c=10.86cm and b=101.3
98. math
As part of their job, meteorologists make weather predictions from data. How accurate are their predictions? What are other scenarios in which you would use data to make a prediction? How would you defend your prediction using data?
99. Math
a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it and choose again. what is P(red, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41 Im kinda confused but i think its B
100. Math
A number cube is rolled 150 times. The number 3 comes up 43 times. What is the experimental probability of rolling a 3? What is the theoretical probability of rolling a 3? A. 43/150;1/6 B. 43/150;1/50 C. 1/6;43/150 D. 3/43;1/6 I think it's A?