# Math

1. MATH
The diameter of acilindrical unshapen pencil 8mm and its length 17.5 cm find the surface area?
2. Math
Simplify. 3ab^2/4ab * 3a^2 b4a
3. Math
A shopkeerper lost 10%by selling an article for Rs 1200.at what price should he have sold the article gain 10% with statement
4. Math
A shopkeerper lost 10%by selling an article for Rs 1200.at what price should he have sold the article gain 10%
5. Math
How do I go about proving that: cos(4θ) + 4cos(2θ) ≡ 8cos^4(θ) - 3 Thanks in advance!
6. math
illustrate using examples the three methods of showing scale
7. Math
Given that exterior angle of a regular hexagon is x, find the size of each interior angle of the hexagon.
8. Math
A trade bought corn for sh 20 per kilogram and beans for sh 60 per kilogram. She mixed the corn and beans and sold the mixture at sh 48 per kilogram. If she made a 60% Profit, determine the ratio corn: beans per kilogram in the mixture.
9. math
9. The polynomial -x^3 -x^2 + 12x represents the volume of a rectangular aquatic tank in cubic feet. The length of the tank is (x + 4). a. How many linear factors should you look for? b. What are the dimensions of the tank? c. Find the value of x that will maximize the volume ...
10. Math
what are the steps in solving quadratics using the Quadratic Formula method?
11. Math
The 3rd term of an ap is 9 while the 11th term is -7 find the first five term of the ap
12. math
I know that theoretical probability observes how may outcomes are possible and assumes that each outcome is as likely as any other to occur and empirical probability is based on actual facts or experiments. So theoretical is what we expect to happen and empirical is what ...
13. math
A farmer has 90 meters of fencing and would like to use the fencing to create a rectangular garden where one of the sides of the garden is against the side of a barn. Let L represent the varying length of the rectangular garden (in meters) and let A represent the area of the ...
I am working with absolute value. I understand this concept for |x| When x= Greater or equal to 0 |-x| when x= less than 0 Now I don’t understand this below. -|x| Please help. Thank you!
15. Math
6 The first flowerbed that Marita made used 1 1/2 bags of barkdust. The flowerbed she is now making is times 2 1/5 as large as the first. How much barkdust will be used for this flowerbed?
16. Math
The first term of an A.P is 5 and the common difference is -3/2, find the term whose value is -20
17. Math
Methods: Factoring, completing the square, quadratic formula. for these equations: 1. x^2 - x = 6 2. -2x^2 + 5x - 3 = 0 3. 3x^2 + x + 1 = 0 4. 2x(x - 5) = -12 is there any reason to chose one method over the other to solve the equations if so which one for each?
18. Math
Peter and mary have total Rs 80.After peter spends Rs 5.25 on a pencil ,he is left 4 times as much money as mary , how does mary have ?
19. Math
what are the similarities and differences found in long division of polynomials and synthetic division?
20. Math
4. Solve the equation using all three methods below. Factoring, completing the square, quadratic formula. x^2 + 3x - 4 = 0 and 4x^2 = 9 it seems like x^2 + 3x - 4 = 0 equals x = 1, -4 from all three methods but Im not sure 4x^2 = 9 equals x = 3/2, -(3/2) when using quadratic ...
21. Math
Carlos Martin received a statement from his bank showing a balance of 55.75 as of March 15. His checkbook shows a balance of 87.37 as of March 20. The bank returned all canceled checks but to. One was for 5.00 and the other was for 13.25. How much did Carlos deposit in his ...
22. math
the greatest common factor of 2x4x6x8x10 and 1x2x3x4x5 is A. 2 B. 4 C. 8 D. 120
23. math
from a collection of 6 paintings, four are to be chosen to hang on a wall. how many different arrangements are possible if every painting is different? a. 24 b. 120 c. 360 d. 720
Can you find a set of 3 different numbers that make this equation true? ?^3+?^3=?^3 I tried but couldn’t think of any possibility. Please help.
25. math
find the angle of inclination of x/3 - y/2=
26. Math...again
Check my answers? The table below shows the scores for two teams playing a series of four card games. Game1|Game2|Game3|Gm4 Team1: -3 | 2 |-4. | 4 Team2: 4. |-5. | 9. | -9 A. Find the totals for each team after two games B.if the winner is the team with the greatest score ...
27. Math
Solve the equation using de moivre's theorem (1) xto the power 7+x to the power 4+x to the power 3+1=0
28. MATH
Write a vector an parametric equation for the plane which contains the point P(9, 1, -2) and is parallel to [x, y, z] = (4, 1, 8) + [1, -1, 1) and [x, y, z] = (-5, 0, 10) + t(-6, 2, 5).
29. math
the H.C.Of two numbers is 7and their L.C.M is 140.If one of the numbers is 28,find the other number
30. math
If (a+b)^2 = a^2 + 6b +b^2 ,what is the value of a?
31. Math
Why does the same method of completing the square fail when the value of "a" does not equal 1 for a quadratic? ax^2 + bx + c
32. math
the sum of two different numbers is 40 . if the smaller number is divided by 4 and the larger number by 12 the sum of the quotients is 6.find the larger number
33. math
URGENT In rectangle ABCD, the point X is chosen on CD so that, Y is the point of intersection of AC and BX, |CXY | = 2 and |BCY|= 3. What is the area of the quadrilateral ADXY?
34. Math
what is true about the relationship between the value of b and the value of c? B. (x - 5)^2 Trinomial form: x^2 – 10x + 25 C. (x + 4)^2 Trinomial form: x^2 + 8x + 16
35. Math
Put these operations in order. The operations with the greatest impact should go on the top level. (Add, Subtract, Multiply, Divide) Top Level-Multiply and Add Least Impact-Divide and Subtract Multiply, Add, Divide , Subtract-Is this in the right order?
36. Math
Adding or subtracting will change the original number by the same amount. Is this true or false?
Last year you mowed grass and shoveled snow for 10 households. You earned \$200 per household mowing for the entire season & \$180 per household for shoveling the entire season. If you earned a total of \$1880 last year, how many households did you mow and shovel for?!
38. Math
The ratio of strawberry to bannana is 2:3 We need 30 cups of batter total. How much banna batter do we need to make? How do I find this out? Please help
39. math
The average gas mileage m in miles per gallon for a compact car is modeled by m(s)= -0.015(s - 47)^2 + 33, where s is the car’s speed in miles per hour. The average gas mileage for an SUV is modeled by my(s)= -0.015(s - 47)^2 + 15. What kind of transformation describes this...
40. Math help?
What is the difference between |–3| And –3 I personally think it’s nothing but idk plz help
41. math
if p(x) is of degree 3 what is the degree of P(x)/(x+1)
42. Math
Convert 2pi^c /9 into degrees = 2pi^c/9 * pi/180
43. Math
A construction company employs technicians and artisans. One a certain day 4 technicians and 2 artisans were hired and paid a total of sh 9000. On another day the firm hired 4 technicians and 1 artisans and paid a total of sh 9500. Calculate the cost of hiring 2 technicians ...
44. math
part of a timetable is shown below windermere 13 45 14 17 14 44 15 17 staveley 13 53 14 25 14 52 15 25 Burneside 13 57 14 29 14 56 15 29 Kendal 14 02 14 34 15 01 15 34 Q2 . sam arrived at kendal on the train that left windermere at 14 17 . how long does he need to wait at ...
45. Math
Simplify -3(4a-5b) A(b-c) = ab - ac -3 x 4a - -3 x 5b -12 - -15 = 3 Is this this the distributive property? Is this correct? If not, please explain. I am not sure if I fully understand it or not :-)
46. math
An archaeologist in Turkey discovers a spear that contains 80% of its original amount of C-14. Find the age of the spear head to the nearest year.
47. math
Sam makes a cube out of blue, red and yellow bricks in the ratio 3:4:8. He uses between 400 to 410 cubes. Calculate the exact number of cubes he has used. Explain your answer.
48. math
what is the solution to 5-t=23 a:t=28 b:t=18 c:t=-18 d:t=-23 what is the value of b if -7+b=-8 a:b=15 b:b=1 c:b+-1 D:b=-15
49. Math
a shark at -80 feet. it swims up and jumps out of the water to a height of 15 feet. write a subtraction expression for the vertical distance the shark travels.
50. math
what is a function that Contains no vertical asymptotes but has a hole at x=2 and another function that contains a horizontal asymptote of 1, vertical asymptotes of 2 and -3, and a hole at x=4.
51. Math
If Gasp cigarettes have 5 mG tar and 0.4 mG nicotine per cigarette and there are 20 cigarettes per pack, how many packs of cigarettes would have to be smoked to coat your lungs with 8 oz of tar? How many packs would you have to smoke to coat you lungs with 1 gram of nicotine?
52. Math
A construction company employs technicians and artisans. One a certain day 4 technicians and artisans were hired and paid a total of sh 9000. On another day the firm hired 4 technicians and 1 artisans and paid a total of sh 9500. Calculate the cost of hiring 2 technicians and ...
53. Math
Write an expression to represent 4 more than the product of 3 and a number X
54. Math
A piece of ribbon 25m long is cut into pieces of equal length.Is it possible to get a piece with irrational length?Explain.
55. Math
The education of a curve is given as y = 2x^3 -9/2 x^2 -15x + 3. Find the value of y when x = 2
56. math
57. Math
You are making balloon arrangements for a birthday party. There are 16 white balloons and 24 red balloons. Each arrangement must be identical. What is the greatest number of arrangements you can make using every balloon?
58. Math
The Mega Middle School cafeteria has small square tables that seat one person on each side. How many of these tables must be pushed together to make one long table that seats 18 people?
59. math
How can you use an equation to make a prediction from a pattern?
60. Math
(-1.15) • 3.5 need help how I got it
61. Math
A mechanic's ruler uses decimal parts of an inch instead of fractions. The ruler reads decimals to the ten-thousandths place. What decimal would the mechanic look for on the ruler to see if a part was 3/8 inch in diameter?
62. Math
3ab^2/4ab , 3a^2 b /4a can someone write these in simplest form?
63. Math
Consider the monomials 15x^2, y^2, and 6x^3 a. Factor the monomials. b. What factors of these monomials are common factors? c. Find the greatest common factor of 15x^2, y^2, and 6x^3
64. Math
√√2-1/√2+1
65. Math
Decide whether the numbers are relatively prime. If not, find the greatest common factor. 19, 299
66. math
67. Math
0 Seventy minus the product of 8 and a number is 86. Write the verbal sentence as an equation. Then solve the equation
68. Math
Which fraction equals a repeating decimal? a) 5/80 b) 11/88 c) 17/85 d) 18/81
Determine the sign of your answer then find the sum or difference. (-10)+1 A.-9 B.-11 C.9 D.11
70. Math
What is the sum of the first 16 terms of the AS 11,15,15,33...? Find the last term of the general term and S16. A. An B. General term C. S16
71. math
A set M=(1,2,......100) is divided into seven subsets with no number in 2 or more subsets. Show that at least one subset either contains four numbers a,b,c, and d such that a+b = c+d or three number p,q and r such that p+q=2r
72. Math
what rational expression will fit each of the descriptions? a. Contains 2 vertical asymptotes. b. Contains a Horizontal asymptote of 3. c. Contains no vertical asymptotes but has a hole at x=2. d. Contains a horizontal asymptote of 1, vertical asymptotes of 2 and -3, and a ...
73. math
the charge for telephone call ,t,partly constant and partly varies with the number n of call. the bill for 420 units of call is 806,while the bill for 200units is 410 A)calculate the charge for 460 unit of electricity B)find a formula for T
74. Math
The shot used in men’s shot put has a volume of about 905 cubic centimeters. With V = (4/3) pi r^3 i need help to find the radius of the shot with the formula. is the shape supposed to be a cylinder ?
75. math
A set M=(1,2,......100) is divided into seven subsets with no number in 2 or more subsets. Show that at least one subset either contains four numbers a,b,c, and d such that a+b = c+d or three number p,q and r such that p+q=2r
76. math
Hence show that 5*7^n+3*11^n-8 is divisible by 60 for all natural numbers n
77. Math
A tire can hold C cubic feet of air. It loses a percentage of its air during each period of time, t. This rate of loss, written as a decimal, is r. This situation can be described using the following formula: C(1-r)^1. What effect, if any, does increasing the value of r have ...
78. Math
A bank account balance for an account with an initial deposit of P dollars earns interest at an annual rate of r. the amount of money in the account after n years is described using the following expression: P(1+r)^n. What effect, if any, does decreasing the value of r have on...
79. Math
In order for a pet to lose weight in a healthy manner, a veterinarian suggested an overweight large-breed dog lost 2 pounds per week. If the expression x-2y represents this situation what must be true about the value of y?
80. Math
Solve for x, 9^x-1 = 3^1+x How do I get the X out of the Exponent?
81. Math
Hello I truly need some help on the below math problem. The mass of the sun is 2 x 10 to the 27th power metric tons, or 2 x 10 to the 30th power kilograms. How many kilograms are in one metric unit? One metric ton is equal to _____ kilograms. How would I go about finding out ...
82. math - scaled drawing
if 1" = 120 inches, how many inches does 1/16" represent?
83. math
i need help with this math XL question. In a​ week, 18 hens laid 90 eggs. What is the unit rate for eggs per​ hen? The unit rate is ??? ​egg(s) per hen.
84. math
1056 divided by 40
85. math
find the greatest common factor of 20,22, and 32. The greatest common factor is?
86. math
is y = 2x^2 + 3 a function? and what is the domain and range for it?
Your group has 12 red tiles and 18 blue tiles. Your job is to arrange the tiles in rows. You must use all the tiles, a row can only contain only blue or only red tiles, each row can only contain the same number of tiles, and the rows should be as long as possible. Solution: ...
88. Math
is the definition of a straight angle see below reversible? if yes, write as a true biconditional. A straight angle is an angle that measures 180 degrees. I’m stuck. Can someone help me?
89. Math
What is the relationship between the point (4,7) and the vector (4,7)? Illustrate with a sketch.
90. Math
now write the biconditional for the statement. Remember to use the phrase if and only if to combine the original statement and it's converse. Please help me through this!
91. Math
1.If two angles have equal measures, Then the angles are congruent. True*** False Write the converse of the conditional and problem 1. Can someone help walk me through this please?
92. math
1÷2(6+4x)-1÷4(8x-12=1÷2(2×-4)
93. Math Geometry
Eratosthenes knew that in Aswan the sun was directly overhead at noon on the summer solstice. At the same time, he measured the angle of the sun to a vertical line in Alexandria. He found this angle to be one(1/50) fiftieth of a circle a. What was Eratosthenes's ...
94. math
part of a timetable is shown below windermere 13 45 14 17 14 44 15 17 staveley 13 53 14 25 14 52 15 25 Burneside 13 57 14 29 14 56 15 29 Kendal 14 02 14 34 15 01 15 34 Oxenholme 14 06 14 38 15 05 15 38 Q1 how long will the train journey take from stavely to kendal Q2 sam ...
95. math
which expression can be written as 4*(3+8) 4+(3+8) (4*3)+(4*8) (4+3)*(4+8) 4*3+8
96. Math
What is the value of 4 ( with a exponent of 2)(3x5+1)
97. Math
Round to the nearest thousand the nearest hundred and the nearest ten 2,565
98. math
I am asked to plot points on a coordinate system and then state what quadrant they are in. If I have a point such as (4,0), which is right on the line), what quadrant is that in? What about (0, -8)? That one is right on the line also. Thank you.
99. math
A ball is shot straight up from the top of a 15-story building. The motion of the ball could be described by the function: h(t)= -16t^2 + 144t + 160 where t represents the time the ball is in the air in seconds and h(t) represents the height in feet . What is the height of ...
100. Math
X={1, 1/2, square root of 3, -3/4} B={0.5, -0.75, 1.7321} Is B a subset of X?