Math

Recent Questions

Math
Yassir's grades on four quizzes were 65%,71%,84% and 75%. What grade must he get on the next test to get an average of 76%

Math
if sec theta = -13/5 on the interval(90,180), find the exact value of sin 2 theta

math
Which trigonometric function requires a domain restriction of [0,pi] to make it invertable? a. f(x)= sin x b. f(x)= cos x******* c. f(x)= tan x d. f(x)= csc x e. f(x)= sec x f. f(x)= cot x Which of the following points could be the initial point of vector v if it has a ...

math
Andy said that any shape with more than three sides or angles has the same number of lines of symmetry. Select the choice that correctly critiques Andy’s reasoning.

conversions math
convert 70.5 in^3 to cubic feet? how would you convert this

math
suppose u = (1, 2, 3, 4, 5, 6, 7, 8) is the universal set and p = (1, 2, 3, 4). what is p? a.) (5, 6, 7, 8)*** b.) (1, 2, 3, 4, 5, 6, 7, 8) c.) (1, 2, 3, 4) d.) cannot be determined i think it's a.) (5, 6, 7, 8)- am i right?

Math
What are the solution of the system? y=x^2+3x-4 y=3x+2 A (-3,6) and (2,-4) B(-3,-4) and (2,6) C (-3,-4) and (-2,-2) D no solution I think it is D

Math
(3-4sin^2a)(1-3tan^2a)=(3-tan^2a)(4cos^2​a-3)

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...

math
1. a coin is tossed, and a standard number cube is rolled. what is the probability that the coin lands heads and the cube rolls an even number?

math
1.you mix the letters s,e,m,i,t,r,o,p,i,c,a, and L thoroughly. Without looking, you draw one letter. find the probability that you will select a vowel. Write your answer as a fraction in simplest form. a. 12/5 b.5/12**** c.1/3 d.7/12

Math
Do the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table. x 1 3 5 10 y 4 12 20 40 a. direct variation; y=4x b. direct variation; xy=1/4 c. inverse variation; xy=4 d. inverse variation; xy=1/4

math
on friday night at a local diner serves a three main enter'ee, each with a choice vegtabel. the enter'ees are beef,chiken,and fish. the vegtable is spinich,broccoli,and carrots.how many possable dinners (enter'ee and vegtable combanation)does dinner serve?List them.

Math
Martin has scored an average of 12 points per game this season Game 1 he scored 8 points, game 2 he scored 11 points, game 3 he scored 12 points, and game 4 he scored 16 points. Use numbers from the box (2,3,4,5,8,11,12,13,16,n) to write an equation that can be used to find ...

math/statistics
What would be an example with solution of the Poisson distribution in the frequency of repurchases?

math
a figure is made up of a big square and 4 smaller identical squares. The area of the whole figure is 980 square inches. What is the unknown length?

Math
A bag contains 6 red marbles, 3 white marbles , and 7 blue marbles. you pick a marble without looking. find the probability of drawing a white marble.

Math
In how many ways can 14 basketball players be listed in a program? A. 87,178,291,200*** B. 14 C. 1 D. 17,297,280

Math
While attending a film festival you decide that there are 12 movies that you are interested in seeing. However, you only have time to see 7 movies. In how many different ways can you watch 8 of the 12 movies? A. 19,958,400 B. 12 C. 9,979,200*** D. 1,663,200

math
Evaluate the following Expressions a 11 to the 0th power B 11 squared / 11 squared C are the answers to Parts A & B the same, explain why or why not

Math
Help pls A number cube is rolled 450 times. The number 3 comes up 67 times. a. What is the theoretical probability of rolling a 3? Write your answer as a fraction in simplest form b. What is the experimental probability of rolling a 3? Write your answer as a fraction in ...

math
1 point Andrea is making a sandbox for her children. She has made a wooden frame her backyard that is 2 feet long, 5 feet wide, and 2 feet deep. She can purchase sand for the sandbox for $15 per cubic meter. How much will it cost for her to purchase sand? (Hint: 1 foot = 0....

Math (Help please!)
Tanya wants to gift-wrap a container that is in the shape of a right circular cylinder. The radius and height of the container are given below in centimeters. Radius is 2.1 cm. Height is 8.8 cm. Which estimate is closest to the minimum amounr of giftwrap Tanya needs to cover ...

Math
Can someone check a few answers for me? Thank you. 1. Simplify. (-14x^3) / (x^3) - (5x^4) = -14/1-5x Where x is not equal to 1/5, 0 2. Simplify. x - 2 / (x^2) + (4x) - 12 = 1/x+6 Where x is not equal to -6

math
Find the vertices of the ellipse. (x + 7)^2 + (y + 5)^2/(1/4) = 1

Math
Christopher mixes the letters s, e, l, e, c, t, e, and d thoroughly. without looking, allen draws one letter. expressed as a fraction, decimal, and percentage, what is the probability that allen will not select a consonant? A. 3/8 , 0.375, 37.5% B. 3/5 , 0.6, 60% C. 5/8 , 0....

math
Find the vertices of the ellipse. (x + 5)^2/4 + (y − 4)^2/49 = 1

Math
The table show the colour preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random from the 50 surveyed, prefered the color red or blue?? ||7 Red, 3 Yellow, 13 Blue, 15 Green, 12 Orange|| A:2/5** B:7/50 C:1/2 D:2/3 am I correct?

Math
The fifth term of an exponential sequence is greater than the fourth term by 27/2 and the fourth term is greater than the third term by 9. Find the first term and the common ratio

Math
Math Unit 6 Lesson 7: Exploring Probability Unit Test Connexus I already answered the questions and I just need to check them so pls help. Thx 1. A single standard number cube is tossed. What is the probability of getting a number greater than 3? A.2/3 B.1/3 C.1/6 D.1/2** 2. a...

Math
1. Simplify & state any excluded values c-5 ―--------- c²-25 2. Simplify & state any excluded values x² - x - 6 ---------------- x² + 7x + 10 9. Find the constant of variation, k, for y= –8 when x = 12. 10. Write an inverse variation to model the situation and answer ...

math
1.The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) (6,1)|(6,2)|(6,3)|(6,5...

Math Test Help Please!!
1. What are the next three terms in the sequence? -6, 5, 16, 27,... A. 38, 49, 60 B. 37, 47, 57 C. 36, 45, 54 D. 36, 46, 57

math
you rolled a standard number cube once. find p(0) a. 7/6 b. 1 c. 1/2 d. 0****

Math
Choose the graph that shows the solution of the inequality on the number line. c < -1 please help!!!

Math
A number cube is rolled 360 times and the results are recorded as follows:41 ones, 54 twos, 62 threes, 33 fives, and 95 sixes. What is the experimental probability of rolling a two or a three? Answers: 0.32 0.18*** 0.07 0.68

math
A bag contains 4 white, 3 blue, and 5 red marbles. 1. Find the probability of choosing a red marble, then a white marble if the marbles are replaced 1/12 5/36 5/6 5/12 2. Find the probability of choosing 3 blue marbles in a row if the marbles are replaced. 2/11 1/220 1/27 1/64...

Math
A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of drawing a white marble. Can someone please explain how I would work this out?

math
Which rule matches the function shown in the graph? Points are: -1, 2 0, 0 2, - 2 A. y = 2x B. y = x + 3 C. y = x - 3 D. y = x/ -2 I was doing it checking each one using these rules and so -1, 2: -2, 2, -4, -0.5 0, 0: 0, 3, - 3, 0

math
please i need your help guys. A rectangular cake measuring 120 cm by 72 cm is to be divided into square pieces of the same size and the largest size possible. What will be the measure of the side of each square and how many pieces will there be?

math
please people i need your help. *Equal squares as large as possible are drawn on a rectangular board measuring 50 cm by 70 cm. Find the size of the square. Steve today at 8:18pm assuming you mean to cover the entire board, then since GCD(50,70)=10 The largest square which ...

math
Please i need a help also to this question Mwajuma needs 70% to receive a grade C in a certain subject.If the exam has 120 questions and each question carry one mark(1%), how many questions should she answer correctly?

math
please people i need your help. *Equal squares as large as possible are drawn on a rectangular board measuring 50 cm by 70 cm. Find the size of the square.

math
Please guys i need your help tomorrow i have a test. *How many plant should my uncle need to plant around his farm of a circular shape of a radius 140 m, If the distance between plants is 50cm?

math
jennifer must complete any 10 of the 25 math problems on a test what percent must she complete

science/math
Jane runs a track race at 7.0m/s for 40 seconds using a force of 140N. How much work has she done? (remember s=d/t)

math
Write the equation of a line that is perpendicular to the given line and that passes through the given point. y - 4 = 5/2 (x + 3); (-7, 8)

Math
Submarine is traveling parallel to the surface of the water 492 feet below the surface. The submarine begins a constant I sent to the surface so that it will emerge on the surface after traveling 3974 feet from the point of its initial ascent? What horizontal distance did the ...

math
game wardens use experiments to help determine the number of squirrels in a specific area. suppose 150 squirrels are caught, tagged, and released back into the wild. Six weeks later, 300 squirrels are caught with 12 found to have tags. using this information, estimate the ...

math
for a school project, alice surveyed several male students in her class to determine whether there is a relationship between their heights and their weights. which scatter plot represents the data in the table below.? height: 54,56,58,61,63,65,70,71 weight: 100,110,122,135,146...

math
1. Tammy mixes the letters S, C, H, O, O, and L thoroughly. Without looking, Allen draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that Allen will not select a consonant. 5/6, 0.833, 83.3% 2/3, 0.667, 66.7% 1/3, 0.333, 33.3%**? 3/2, ...

math
A netball team scored 60,42,48 and 46 goals in thier first four matches. a)What is the mean number of goals for the first four matches? b)The team shoots only 39 goals in the fifth match.What is the mean number of goals scored for the fine matches? c) The team shoots goals in ...

Math
Paul is 20 years older than joy four years ago; the ratio of their ages was 7:3 find the present age of Paul

Math
A netball team scored 60 42 48 and 46 goals in their first four matches.What is the mean number of goals for the first for matches?What score will the team need to shoot in the next match so that they maintain the same mean score. the team shoots only 39 goals in the fifth ...

math
She scores 76 marks for the next test. What is the mean mark for the four tests?How to calculate?

Math
A milk company unconditionally guarantees that an unopened, properly refrigerated container of its milk will be fresh for 5 days after the date stamped on the carton. The company's data shows that unopened containers remain fresh on average for 6 days, with a standard ...

MATH
7. 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, in choose again. What is P(red, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41 I absolutely know is is C. 90/1681 but I need someone ...

Math
Hello peeps Could someone help me with this please. This is the problem: You have $5 for lunch. You bought a turkey sandwich for 2.25. A. Write an inequality that represents how much more money you can spend. B. Solve your inequality Explain your answer.

math
a researcher tagged 40 giant turtles in 2008. in 2009 she returned and captured 50 turtles, 16 of which were tagged. In 2010, she returned again and captured 30 turtles, 8 of which were tagged. a. use a proportion to estimate the turtle population for 2009 b. use a proportion ...

math
what is the mean, median, and mode of 86,75,97,58,94, and 58?

Math
Show that the function F( x)=∫(from x to 3x)1/t dt is constant on the interval (0, +∞). Okay so I'm not sure if I should use the FTOC Part 1 or something else but this question is just really confusing. I asked my brother and he said I should just solve the integral but ...

math
The ___ of a function consists of the set of all output values.

math
Find the standard form of the equation of the parabola with the given characteristics. Vertex: (-9, 8); directrix: x = -16

math
Write the equation of the circle in standard form. 9x^2 + 9y^2 + 72x − 108y + 368 = 0 Identify its center and radius. center (x, y) = radius =

MATH
a borrower received a 30 year ARM mortgage loan for 200,000. Rate caps are 3/2/6 the start rate is 3.50% AND the loan adjusts every 12 months for the life of the mortgage, The index used for this mortgage is LIBOR which for this exercise is 3% at the start of the loan, 4.45% ...

math
Lesson 10: displaying and analyzing data unit test GT grade 5 connections academy 4.which of the following types of information is suited for display on a double line graph? a.annual changes in melodys height and weight from 5 to 10 years old b.number of democrats and ...

Math
A bus company has 4000 passengers daily, each paying a a fare of For each each $0.15 increase, the company estimates that it will lose 40 passengers. If the company needs to take in $10 450 per day to stay in business, what fare should be charged?

Math - trigonometry
Point P (8, -4) is on the terminal arm of angle theta What quadrant would this be in? Cosine?

Math
The chart below shows the possible options for pants, shirts, and shoes in Tom’s closet. Which tree diagram correctly shows the possible outfits he can wear?

Math
How many different lunch combinations can be made from two sandwich choices, three side item choices, and three beverage choices if you choose one sandwich, one side, and one beverage? 8 9 18 11

math
How many plant should my uncle need to plant around his farm of a circular shape of a radius 140 m, If the distance between plants is 50cm? #Please guys i need your help#

Math
Three sisters shared some mangoes in the ratio of 5:3:2.if one with the smallest ratio received 25 mangoes, find the number of mangoes shared?

Math
Create a word problem system of equation that has an answer x=1.25 and y= 2.75.

math
AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50°. (a) Find the length BC, (BC)^2 = (AB)^2 +(AC)^2 -2(AB)(AC)cosA (BC)^2 = 64 +36 - 96cos(50) BC =sqroot100-96cos(50) BC = 6.188 (b) angle ABC, (c) angle CAD , (d) area of triangle ACD

math
Find the standard form of the equation of the circle with the given characteristics. Endpoints of a diameter: (1, −7) and (7, −5)

MATH
It cost $5 for one snow cone. Which function rule correctly relates the number of snow cones purchased which stands for s, to the total cost which is c.

math
1. What are the minimum, first quartile, median, third quartile, and maximum of the data set? 18, 20, 11, 10, 8, 6, 12, 4 A: Minimum: 4; First Quartile: 7; Median: 10.5; Third Quartile: 17.5; Maximum: 20 B: Minimum: 4; First Quartile: 5.5; Median: 12.75; Third Quartile: 15; ...

Math
If you were to sketch a circle graph for the data shown in the table bellow, about what fraction of the circle would represent a baseball? Type Number Baseball 33 Soccer 62 Football 5 Answers 1/4 1/3 1/2 (I CHOOSE THIS) 2/3 if some one can help me thanks

Math
What is the simplified form of The quantity x to the fourth power minus 81 divided by the quantity x plus 3 ? A. x cubed minus 3 times x squared plus 9 times x minus 27 B. the quantity x squared plus 9 times the quantity x squared minus 9 C. x cubed plus 3 times x squared plus...

math
You and your family attend your brother’s championship baseball game. Between innings you decide to go to the snack stand. You go to the snack stand with $15 and find that sodas are $2.50 and that popcorn is $3.75. Write an inequality that models the number of sodas you can ...

12th math
A biologist determines that the path of a bee from its hive to its foraging site can be described by the parametric equations x= 4t-1 and y=2t^2+3t-4. Which of the following equations is the curve described by these parametric equations? y=20x-9 y=20x+16 y=x^2+8x-25/8 y=x^2+4x...

Math
How many toothpicks are needed for nth design? Explain how do you figure out.

Math
How many toothpicks are needed for nth design? Explain how do you figure out.

math
Express x times square root of x as a complete radical

Math
A baker is decorating the top of a round cake with cherries. The diameter is 10 inches. Each cherry is 2 inches in diameter. About how many will the baker need to decorate the top of the cake?

math
find [dy/dx] x^2 Using this : limit as the change of x —-> 0 for f(x + deltax) - f(x) —————————- deltax run through each step

Business Calculation
Hello! I was not sure how to put the subject as, because the question is a calculation. However, it is not math. I just need a little help understanding the question, as I think I'm correct, but I'm not 100% sure. Any help is appreciated, thanks! Question: Given a simple ...

Math: Unit 5: Graphing,Equations,and Inequalities
Solve the equation. 5x + 2 = 62? A. 11.5 B. 12 C. 12.8 D. 36

Math
(9m+6)+(-5m-6)

Math (help as soon as possible)
. Point A(4, 2) is translated according to the rule (x, y) (x + 1, y – 5) and then reflected across the y-axis. a) In which quadrant of the coordinate plane is point A located? b) What are the coordinates of translated point A’? In which quadrant of the coordinate plane is...

Math
Which is a rule that describes the translation of a point form (4, -8) to (7, -10)?

math;)
Find the unit vector in the direction of u=(-3,2). Write your answer as a linear combination of the standard unit vectors i and j. a. u=-3[sqrt(13)/13]i+2[sqrt(13)/13]j b. u=-3[sqrt(5)/5]i+2[sqrt(5)/5]j c. u=3[sqrt(5)/5]i-2[sqrt(5)/5]j d. u=3[sqrt(13)/13]i+2[sqrt(13)/13]j I do...

math plz heeeeelp!!!
Rolinda's first five spanish test scores are 85, 85, 60, 62,and 59. a.find the mean, median, and the mode of her test scores. round your answers to the nearest tenth if necessary. b.which of these measures supports her claim that she is doing well in her spanish class? c.why ...

math
Pete recently bought whiteboard supplies for employees in his office. He spent $140 on whiteboards, markers, and erasers. The markers came in packs of 5, which cost $6 per pack. One (1) eraser was 1/3 of the cost of 1 pack of markers and 1 whiteboard was 5 times the cost of 1 ...

Math
Can I have help with this question? Write an inequality for the sentence. Then solve the inequality. Twelve less than a number is at most 7. A. x - 12 <_ 7; x <_ -5 B. x - 12 <_ 7; x <_ 17 C. x - 12 <_ 7; x <_ 9 D. x - 12 <_ 7; x <_ 19 If anyone can ...

math, algegra
A Freight train is traveling 30 miles per hour. An automobile starts out from the same place 1 hour later and overtakes the train in 3 hours. What was the rate of the automobile?

Math
If a quilt was being made and the quilt had an 8 ×8 array of patches and each patch is 2 2/3 in long what is area of whole quilt?

Math
Mandy had three Maths tests and her mean mark is 84.What is the total of Mandy's marks for the three test?

Math
A pizza shop offers 5 toppings. How many different 3-topping pizzas can you make? 1)6 2)10 3)4 4)5 I think #2

Math
What common word would we have after following these steps? - write down a zero -put 50 on its left and 5 on its right -add 1/5 of eight at the end

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