# Math

1. math
in the sequence 0.07,0.12,0.17,... what term has a value of 1.67?
2. math
in the sequence 2,6,10,... what term has a value of 106?
3. MATH
Can somebody show me how to get to the answer? How do 2pi[((-6561/4)+2430-(729/2))-((-1/4)+(10​/3)-(9/2))]=2560pi/3. My answer is always= 10184pi/12 or 2546pi/3. I don't know what I did wrong that cause my answer to be wrong.
4. Math
What must be added to X2+10x+23to make it perfect square
5. math
a girl spent 1/4 of her money on taxi fare and 2/3 of the remaining on drink. what original amount of money was (a) spent (b) left
6. MATH
how does y=x^3/2 become y^2/3=x
7. MATH
I don't understand how √ 4x=2x. Is this a mistake? I thought 4x can not be square root because the 4 has an x next to it.
8. math
My soccer team has 16 players. I have to choose a starting lineup of a goalie and 10 regular players (the regular players are interchangeable). How many different starting lineups can I choose?
9. math
Our school's girls volleyball team has 14 players, including a set of 3 triplets: Missy, Lauren, and Liz. In how many ways can we choose 6 starters if the only restriction is that not all 3 triplets can be in the starting lineup?
10. math, calculus
Interference Two identical tuning forks are struck, one a fraction of a second after the other. The sounds produced are modeled by f1(t) = C sin ωt and f2(t) = C sin(ωt + α). The two sound waves interfere to produce a single sound modeled by the sum of these functions f(t...
11. MATH
How do I find the intercept with y=√4x and y=x^2/4
12. Math
A picture is 42 cm long and 32 cm wide. It has a 5 cm frame around it.all around the picture, 1 cm of the picture sticks into the frame so that the frame can hold it. What is the area of the frame? Plz help
13. math
Find each unit rate. Detirmine wich is lower brand A: 240mg sodium for 1/3 pickle Brand B: 325 mg sodium for 1/2 pickle
14. math
what are today's resuilt
15. Math
The price of gasoline increased 25% from July to August. If c = cost of gasoline in July, write two expressions that represent the price of gas in August. If you know the cost of gas in July, which expression do you think would be easier to use to calculate the cost of gas in ...
16. math
what are the winning number for today games?
17. math and science
what Will be 21/06/2018 next draw and 22 /06/2018 next draw
18. math
is this a function or not? because it has two same y's and x's... {(-6,3), (-3,-6), (4,-6), (4,-3)} thank you!
19. Math
Simplify: (X^2 + 2x + 1) + (2x^2 + 4)
20. Math
Simplify: (2a+1)-(4a+2)
21. Math
Using probability unit test for Connexus kids.....can anyone help
22. math
Percents Unit Test 1.   Write a ratio and a percent for the shaded area.  (1 point) , 25% , 31.25% , 20% , 25% 2.   Model 25% on a  grid.  (1 point) 3.   Write the ratio as a percent. In the small country of Varia, a bill becomes law only if  of the senators ...
23. math
Jenny bought scrapbooking supplies for \$123.00. She paid \$8.61 in sales tax. What was the sales tax rate on the supplies? If necessary, round your answer to the nearest tenth.
24. Math
A gasoline tank is 1/6 full. When 21 liters of gasoline were added, it became 3/4 full. How many more liters more is needed to fill it?
25. Math
Prove that sin 13pi/3.sin 8pi/3+cos 2pi/3.sin 5pi /6=1/2.
26. Math
The chart below shows the population distribution for the 2,400 occupants of the city of Centre Hill. Adult Male Adult Female Child % Living in Uptown 9 8 6 % Living in Midtown 22 20 15 % Living in Downtown 21 22 12 % Living in Suburbs 48 50 67 If there are an equal number of ...
27. Math probability
Suppose x is random variable with normal distribution (u,sigma^2) distribution and p(x<=0)=1/3 and p(x<=1)=2/3 what are the values of u and sigma? Please show me the steps to solve such a question Thank you
28. math
tim has nickles,dimes, & quarters in his pocket. he has twice as many dimes as nickles. there are 63 coins in all. the coins in his pocket have a total value of \$5.75. how many of each coin does he have
29. Math-trig
So how do find the arcsec(-3)? secy = x secx = -3 1/cosx = -3 1 = -3cosx -1/3 = cosx Now what angle is this?
30. Math
sinØ (1+ tanØ) + cosØ(1+ cotØ) = (secØ + cosecØ)
31. MaTH
2x+y=5 4x+y=8
32. Math
If 8x + 8y = 18 and x^2 – y^2 = –3/8, what is the value of 2x – 2y? The answer is supposed to be -1/3 but I have no idea how to get that. Thanks in advance for helping out!
33. math
peter,john and james share a certain of money.peter gets ⅔ of the amount of money.John gets ¾ of the remainder and james gets \$3.00 calculate the total amount of money shared
34. math
2a+12y=-7 3a+2b=7
35. math
maria borrowed Rs 1400 at the rate of 6%(p.a) for 8 yers and 5 months .Find the amount she paid back?
36. Math
You roll a number cube twice. Find P(even, then not 2). Write the probability as a fraction in simplest form. I don't understand this question at all plz help.
37. Math
You mix the letters M, A, T, H, E, M, A, T, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability P(A). Write the probability as: a. a fraction in simplest form b. a decimal c. a percent Can somebody check my answers, Thanks 1. 1/4 2. 0.25 3. 25%
38. MATH
How does y=((h/(R-r))(R-r) become x=R-((R-r)/h)y
39. Math
The probability of winning a game is 25%. How many times should you expect to win if you play 40 times?
40. math-distinguishability
A library has six identical copies of a certain book. At any given time, some of these copies are at the library and some are checked out. How many different ways are there for some of the books to be in the library and the rest to be checked out if at least one book is in the...
41. math
By analyzing the normals, determine if the two planes intersect in a line, are parallel and distinct, or are coincident. x+2y+3z-3=0 2x-y+z-7=0
42. Math
Let ​F(x)=x^2−8 and ​G(x)=8−x. Find ​(F−​G)(−6​).
43. Math
For ​f(x)=44x−22 and ​g(x)=22x^2−11​, find the following function. (f * g)(x)
44. Math
y=​a(x−​h)^2+k and sketch its graph. y=2x^2+12x+14
45. Math
Construct triangle ABC in which/AB/=7cm,/AC/=9.5cm and B angle A C=120degree. Measure/BC/
46. Math
There is a school of 850 pupils 3/5 of them are girls how many girls are there
47. Math
Construct triangle ABC in which/AB/=7cm,/AC/=9.5cm and B line A,C=120 degree.Measure /BC/
48. Math
Find the intersection of the following planes: 2x+y+6z=7 3x+4y+3z=-8 x-2y-4z=9
49. Math
Solve: 6 - x = -12 A) -18 B) -6 C) 0 D) 18*** Solve for x. x + 1.33 = 7.82 A) 6.49 *** B) 6.52 C) 7.49 D) 9.15 Solve for x. x − 15.99 = 58.06 A) −42.07 B) −74.05 C) 42.07*** D) 74.05 Solve for x. 1.32 x = 8.976 A) 6.0 B) 6.6 C) 6.8*** D) 7.2 Solve for x. x/4 = 3/8 A) 2/3...
50. math
jenny bought scrapbooking supplies for 123.00 she paid 8.61 in sales tax
51. Math
Is sum of two whole number a natural number?
52. Math
Solve the inequality. y + 3 ≤ 5 y ≥ 2 y ≤ 8 y ≤ 2 y ≥ 8
53. Math
Mass of a chicken A 50grams B50 kilograms
54. Math
Please Check My Answer: Find the probability that you throw a dart and land in the region labeled "G" Here is a link to the image: I can't place it in here, but if you google the question, the very first image that pops up (A square with different colors and a yellow line ...
55. Math
How would you solve this problem? Please include steps for me! Solve for θ in the interval 0 ≤ θ ≤ 2π: cos(θ )sin(θ ) − 1/ 2cos(θ ) = 0
56. Math
Which expression equals 6x − 5y + 2 − 8x + 3( y + 5)? A) 3x − 2y + 17 B) −3x + 2y + 17 *** C) −2x − 2y + 17 D) −2x − 2y − 17
57. Math
There are 14 NBA teams who do not make the playoffs. Of these teams, 3 of them will be randomly selected to make the 1st, 2nd, and 3rd pick. How many different ways can the 1st-3rd pick be arranged?
58. Math
Please Check My Answers!!! What is the type of conic section is given by the equation x^2-9y^2=900 and what is the domain and range? Answer: Type is hyperbola, Domain is all real values of x, not sure what the range is. Please explain how to find these What are the vertex, ...
59. math
A farmer's land is separated into sections of size 215 acres. Suppose there are 449 such sections. How many acres of land does the farmer own? Write your answer as a mixed number in simplest form.
60. Math
The bearing of point Y from a point X is 048°. If Y is 115km away from point X and the bearing of point Z from Y is 120° at a distance of 75km. Find the distance between X and Z, using a scale of 1cm to represent 20km
61. Math
A deer population was measured to be 4000. Two years later , it was measured to be 4300. assume the population grows exponentially. A). Write an equation describe this situation. Find values of all constants. b) What will the population be four years after the first ...
62. Math
Find the simple interest of \$500000 at an annual rate of 5.6% for 9 months.
63. Math
I'm having trouble getting through these types of problems: Can someone tell me how to approach this? The point (8, -4) is on the graph of y=f(x). Find the corresponding point on the graph of g(x)=3f(1/2x)+11 Any assistance would be greatly appreciated! -Brett
64. Math
The fourth term of an arithmetic sequence is 18 and the sixth term is 28. Give the first 3 terms
65. math
How many possible distinct 5 card hands can be dealt from a standard 52 card deck? The order in which the cards are dealt doesn't matter. I know it ISN'T 52 choose 5 because the cards have to be DISTINCT, or DIFFERENT.
66. math
Julie baked cupcakes for her family at home and for a party at school. She iced 4 cupcakes with red frosting, 2 cupcakes with orange frosting, 2 with yellow, 2 with green, 3 with blue and the last 3 with violet frosting. Each cupcake is iced with exactly one color of frosting...
67. Math
For questions 2 and 3, use a calculator to find the values of the inverse function in radians. sin^-1(0.65) 0.71 + 2pi n and –0.71 + 2 pi n 0.71 + 2 pi n and –3.85 + 2 pi n 0.86 + 2pi n and –0.86 + 2pi n –0.61 + 2pi n and 2.54 + 2 pi n tan^-1(-0.09) –0.09 + 2pi n No ...
68. algebra
A math class has 3 girls and 7 boys in the seventh grade and 2 girls and 2 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys?
69. Math
It cost a family \$348 to buy a 15ft by 26ft rug. If the cost is proportional to the area, what will it cost the family to buy a 7.5ft by 8ft rug 89.66 188.50*** 249 87
70. Math
A watch loses 30 second hour. If the watch was set right on Sunday at 11:30 p.m. What day and time did it show after 10 hours? 10 * 30 = 300 5 min
71. math
There are 2.2 pounds in one kg.If Mary Catherine has 2.5 kg hamburger meat for her cookout ,how many pounds of hamburger meat does she have.
72. Math
Sofa is on sale for 28% off. Sale price is \$666.00. What is regular price?
73. Math
1) in a possible class, Rosa will take a total of 4 tests. She has already taken 2 of the tests and received scores of 81 and 83. What is the least possible score Rosa can obtain on the third test to still obtain an average score of 85 on all 4 tests? (Assume Test scores can ...
74. math
what is the surface area of 16ft on the bottom 8ft on the right and 5ft on the left???????????????
75. Math
Austin must choose a number between 67 and 113 that is a multiple of 3, 8 and 12. Write all the numbers that he could choose. If there is more than one number, separate them with commas.
76. Math
Suppose you are researching the eating habits of people your age. What sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? What is an example of a survey question that does not have bias? I have ...
77. Math
a pond is 36 m long. a duck swims 4 lengths of the pond each day. how far does the duck swim in 4 we
78. math
Today my daughter's age is one sixth of my age. If I was 40 years old two years back, what is my daughter's age today?
79. Math
The road is 7m wide. The corner is in the shape of a quarter of a circle. the inside radius of the corner is 70m. Ali walks rounds the corner on the inside, from A to B. Obi walks round the corner on the outside, from C to D. How much further does obi walk than Ali?
80. Math
an arch of a bridge is made by bending a steel beam into the shape of a semi circle, if the span (diameter) of the arch is 20m, use the value 3.14 for π to find the length of the steel beam to the nearest meter
81. English
1. Mom can solve this problem. 2. Mom can solve this math problem. ----------------------------------------​-------- What does #1 mean? Can #1 mean #2? Can #1 mean that she can solve a problem in life?
82. math
if you have a 6 foot canvas and cut off 4 inches then how many feet would be left
83. Math
Every time mr coleborn throws a ball of paper in the garbage can, the probability the ball goes in the can is 3/4. What is the probability he misses 2 times in a row?
84. Math
Two helicopters ﬂying at the same altitude are 2000m apart when they spot a life raft below. The raft is directly between the two helicopters. The angle of depression from one helicopter to the raft is 37° and the angle of depression from the other helicopter is 49°. Both ...
85. Math
Is the product of 4/7 and radical 16 a rational or irrational number? Explain.
86. Math
find the total number of possible outcomes for 4 different cell phone models, each of which has 3 different plans. A.7 B.12 C.16 D.24 my answer is 12 please tell me if its correct if not can yo help me find the right answer thankyou
87. math
which values can be substituted for x to make the inequality x - 4 >0 true? choose all that apply A. 0 B. 3 C. 4 D. 18 my answer is 0 and 4 please check my answer's
88. math
Fiona is repairing the wiring on a radio broadcast tower. She is in the basket of the repair truck 40m from the tower. if she looks up at an angle of 42° she can see the top of the tower. She can see the base if she looks down at an angle of 32°. How high is the tower?
89. math
9. which set of output values correctly completes the function table? y=6-x input (X) output (y) -2 ? -1 ? 3 ? ----------------------- 4,5,3 -8,-7,3 8,7,3 11. What is the function rule shown by the table? input(x) output(y) -2 -3 0 1 1 3 2 5 --------------------- y=x-1 y=x+2 y...
90. Math
9. which set of output values correctly completes the function table? y=6-x input (X) output (y) -2 ? -1 ? 3 ? ----------------------- 4,5,3 -8,-7,3 8,7,3 11. What is the function rule shown by the table? input(x) output(y) -2 -3 0 1 1 3 2 5 --------------------- y=x-1 y=x+2 y...
91. Math
A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there was exactly one head...
92. Math
What would the grade be for a road that has a rise of 11m and a run of 100m
93. Math
A vendor. Sold 2/5 of fruits to motorists and 1/4 to students. He also sold 3/7 of the remaining fruits to others. If the vendor was left with 168 fruits, how many fruits were sold to students?
94. math
it takes joh 2 hours to finish working in a yard, mark can work on the same yard for 3 hours. how long will it take both of them if they work as a team?
95. Math
A businessman borrowed sh 40000 from a lending institution at a simple interest rate of 2 1/2 % per month. How much did he pay back at the end of one year?
96. Math
What is the next number in the pattern 3, 10, 5, 12, 7, 14, 9, 16, ...?
97. Math
A rectangular ﬁeld is to be fenced in on four sides with a fifth piece of fencing placed Parallel to one of the shorter sides, so that the ﬁeld is split in two parts. If 1600 m of fencing is available, ﬁnd the largest possible area for this enclosure. What dimensions ...
98. Math
Justin is riding in a hot air balloon, directly over Ben, who is standing on the ground. Justin spots Patti on the ground at an angle of depression of 27 degrees. The balloon rises 35m. Now the angle of depression to Patti is 36 degrees. How far is Patti from Ben?
99. math
In pushing a desk a distance of 2.0 meters, a student accomplished 300.0 joule amount of work. How much force was expended?
100. math
prove that (n choose k) = (n-1 choose k-1) (n-1 choose k) a) By using formula of (n choose k) b) by breaking subsets of size k into two mutually exclusive classes, one class comprising all those subsets which contain a given element and the other all those which dont