Wednesday
August 31, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math work
find the triple scalar product u . (v * w) for the vectors u = 9i - 7j - 3k v = -6i + j - 5k w = 2i + 8j - 9k
Wednesday, August 31, 2016 by sophie

math work
determine whether the planes are parallel, octagonal or neither a. 4x + 5y + z = -1 3x + 5y - 37z = -3 b. 2x - y - 3z = -5 -2x - 6y - z = 3
Wednesday, August 31, 2016 by sophie

math work
find the minors and cofactors of the matrix [ -3 2 -8 ] 3 -2 6 -1 3 -6
Wednesday, August 31, 2016 by sophie

math
At a halftime show marching band 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 the translation. B. What are the corrdiates of the drummer's final position? A. I'm not sure ...
Wednesday, August 31, 2016 by FluttershyK

Math
The balance listed on Kim's bank statement was $65 in April. In May, her balance was $-12. What equation represents the difference in her account balances from April to May? 1. 65 - 12 = 53 2. 65 - (-12) = 77 3. -65 - (-12) = -53 4. -65 + -12 = -77
Wednesday, August 31, 2016 by Pier

Math
the sum of the reciprocals of two consecutive positive numbers is 17/12 . Find the numbers
Wednesday, August 31, 2016 by Damien

math
A rectangle is removed from a right triangle to create the shaded region shown below. Find the area of the shaded region. Be sure to include the correct unit in your answer.
Wednesday, August 31, 2016 by Anonymous

math
3.96 x 10^2/ 1.5 x 10^6
Wednesday, August 31, 2016 by kaylee

math
Subtract 9 1/4 from 15 2/6 pls anwswer this
Wednesday, August 31, 2016 by Anonymous

math
pls answer 5 2/6 ecreased by 1/4
Wednesday, August 31, 2016 by Anonymous

math
two students are picked at random from a group of 8 girls and 6 boys,calculate the probability that the two picked atleast one is a boy.
Wednesday, August 31, 2016 by joy

math
subtract 4 2/3 - 3 2/5 ?
Wednesday, August 31, 2016 by clair

Math
A farmer uses 11/18 of his field to grow rice and 3/7 of remaning field for growing tomatoes of the area thus left he uses 1/4 of his to grow spanich and the rest to grow sweet potatoes What fraction of field is used to grow sweet potatoes??
Wednesday, August 31, 2016 by Summit

math
Prime factorization of 88 with division and factor tree method. I am not able to do this question.
Wednesday, August 31, 2016 by mauli

Math
The chef has 25 pounds of strip loin. The trim loss on the strip loin is 35% and the cooking loss is 80% of the trimmed weight. How many pounds of trimmed, cooked strip loin will the chef have left to serve to his customers?
Wednesday, August 31, 2016 by Anonymous

math
subtract the following rename if necessary.7 1/2-5 3/4=
Wednesday, August 31, 2016 by thraixie

math
An ant starts at position (0, 0) and walks north, east, south or west, one unit at a time. How many di erent paths of length 8 units finish at (0, 0)?
Wednesday, August 31, 2016 by sarah

math
find the general form of the equation of the plane passing through the point and perpendicular to the specified vector. (8, 6, 3) n =i-6j + k a. x - 6y + z - 25 = 0 b. x - 6y + z + 25 = 0 c. x - 6y + z = 0 d. 8x + 6y + 3z - 25 = 0 e. 8x + 6y + 3z + 25 = 0
Wednesday, August 31, 2016 by Sreya

math
find the triple scalar product u . (v * w) for the vectors u = 9i - 7j - 3k v = -6i + j - 5k w = 2i + 8j - 9k a. -877 b. -299 c. -19 d. 0 e. 899
Wednesday, August 31, 2016 by Sreya

math homework
use the limit process to find the slope of the graph of 'square root' x+8 at (8,4) a. 4 b. 1/4 c. the slope is undefined at this point d. 1/8 e. infinity
Wednesday, August 31, 2016 by jessie

math
solve the system of equations for x and y { x^2 - 11x -y =-24 x^2 - 11x + y = -24
Wednesday, August 31, 2016 by jessie

math homework
solve the system of equations algebraically for x and y { x^2 + y^2 = 26 x + y = 6 a. (1,5) (1,4) b. (4,5) (5,4) c. (5,1) (5,1) d. (1,5) (5,1) e. no solution
Wednesday, August 31, 2016 by lottie

math
How to Arrange multiplication and division symbol as you wish between number 1 to 9 to get a result of 1.
Wednesday, August 31, 2016 by jyothi

math
The total price of a mobile and a watch is rs8000. If 10% discount and 10% VAT IS imposed on both, their selling price becomes rs7920, find the marked price of mobile and watch separately. Well I did this question and every time I get to a point where the variable are ...
Wednesday, August 31, 2016 by A GOODSTUDENT

math
A and B play card on stake. A gains from B 1/4 of the latter's money. B gains from A 1/3 of A's original money. Each has now rs 400. How much money did each have before playing the game? Well I tried this question a lot and have no clue how to do it I made equation ...
Wednesday, August 31, 2016 by A GOODSTUDENT

Math
Insert +, -, x, or + symbols to make each statement true 17?2?3?8=3 33?3?2?5=1
Wednesday, August 31, 2016 by Bella

math
Expand (1+x+x^2)^3
Wednesday, August 31, 2016 by bhanu

Math
Several students were surveyed about their favorite class. 26 students chose art 19 English 21 math 16 music 32 science. What fraction of the of the students chose music as their favorite subject.
Wednesday, August 31, 2016 by Anonymous

Math
Several students were surveyed about their favorite class. 26 students chose art 19 English 21 math 16 music 32 science. What fraction of the of the students chose music as their favorite subject.
Wednesday, August 31, 2016 by Anonymous

Math-marine ecisytems
How do I divide 71%÷519million square kilometers and wat is the work? Need answers before 9:00pm today 8-30-16 thanks :) ;) so far I have done a dividing box with 510000000 in it and 71 as my divider my parents can't help it is to hard for them and it is hard cuz ...
Tuesday, August 30, 2016 by Anonymous

Math
Lucia and Stephen each drew a quick picture to model 2.04. Whose model is correct? Explain the error. □□:: □□|||| Lucia Stephen Lucia's model is correct because it has dots that is showing hundredths place. Stephen's model has lines that are ...
Tuesday, August 30, 2016 by Keili

math
5x10negativepower2
Tuesday, August 30, 2016 by Anonymous

math
Could you please explain why, when increasing something, you put a 1 in front of it? For example, if something is increased by 5%, why do you multiply by 1.05? What exactly does that 1 mean or represent? Thank you.
Tuesday, August 30, 2016 by Carly

math
The coach of a baseball team separates the players into groups for drills. Each group has the same number of players. Is the total number of players on baseball team prime or composite? Explain.
Tuesday, August 30, 2016 by bob

Math
which value is the "whole" in the following problem: 14 is what percent of 56? I said the "whole" is 56, due to the problem not stating whether i was to solve the problem by using proportions or whatever. May you check my answer? Thank You
Tuesday, August 30, 2016 by Jourrapide

Math
Blake watched 1/6 of a movie on Friday,3/5 of amovie on saturday, and the rest on sunday. What fraction of the movie did he watch on Sunday?
Tuesday, August 30, 2016 by MARY

math
If line BD bisects Angle ABC with the measure of abd= 5x+8 and the measure of dbc= 9x-14, then find the measure of ABC.
Tuesday, August 30, 2016 by Anonymous

Math
State the theorem or postulate that is related to the measures of the angles in each pair. Then find the angle measures. m∠3=(23x+11)°,m∠4=(14x+2​1)° Can you teach me this problem?? Please...
Tuesday, August 30, 2016 by CC

math
What are the tricks in solving words problem?
Tuesday, August 30, 2016 by ngun

4th grade math
solve the following problems using pictures, number or words. At president's inaguration in 1861, the newpaper headlines stated there were about 30,000 people in attendance. If the newpaper rounded to the nearest thousand, what is the largest number and smallest number of ...
Tuesday, August 30, 2016 by Mythreyee

4th grade math
solve the following problems using pictures, number or words. At president's inaguration in 2005, the newpaper headlines stated there were about 400,000 people in attendance. If the newpaper rounded to the nearest ten thousand, what is the largest number and smallest ...
Tuesday, August 30, 2016 by Mythreyee

4th grade math
solve the following problems using pictures, number or words. At president's inaguration in 2013, the newpaper headlines stated there were about 800,000 people in attendance. If the newpaper rounded to the nearest hundred thousand, what is the largest number and smallest ...
Tuesday, August 30, 2016 by Mythreyee

Math
How do you put 11760 825 into expanded form
Tuesday, August 30, 2016 by Lesly

Math
In 3 years, an investment earns $108 simple interest at a rate of 3%. Find the principle. Thank You.
Tuesday, August 30, 2016 by Steve

Math
Is the sum of 425 and 390 less than or greater than 800. How do you know?
Tuesday, August 30, 2016 by Jeremiah

Math
1.64 as a mixed number in simplest form
Tuesday, August 30, 2016 by Heidi

Math
The wind chill in a cold day made it feel like 5 degrees below zero outside. Write this temerpature as a integer.
Tuesday, August 30, 2016 by Amy

Math
An investment of $2050 at a rate 2% interest earned in 164 in simple interest. Find the length of the time it was invested for My answer: 4 months
Tuesday, August 30, 2016 by Steve

Math
In 748,719 change the digit in the thousands place so that the value of the new digit represents 1/10 of the value of the digit in the ten thousands place write the new # to the right.
Tuesday, August 30, 2016 by Bryce

Math
If a car travel 12 miles on 0.3 gallon of gas. How far can it travel on 1gallon?
Tuesday, August 30, 2016 by Savannah

Math
A plumb bob is a weight hung at the end of a string, called a plumb line. The weight pulls the string down so that the plumb line is perfectly vertical. Suppose that the angle formed by the wall and the roof is 123° and the angle formed by the plumb line and the roof is ...
Tuesday, August 30, 2016 by CC

Math
A penguin may swim as slowly as 3 miles per hour or as fast as 15 miles an hour. How many minutes does it take a penguin to swim 1 mile at full speed?
Tuesday, August 30, 2016 by Anonymous

Math
How many times greater is a digit in the one millions place than the same digit in the ten thousands place
Tuesday, August 30, 2016 by Marisa

Math
Using numbers 2,3,5,10, 24 make the number 120
Tuesday, August 30, 2016 by K

Math
Write an equivalent expression for the following: 3(x+2)+2x-1
Tuesday, August 30, 2016 by Amy

Math
K^9 V^8* KV^5
Tuesday, August 30, 2016 by Amy

Math
How do you write 4,000,000,000 + 20,000,000 + 500,000 + 60,000 + 1,000 + 300 + 40
Tuesday, August 30, 2016 by James

Math
A gallon of gasoline costs g dollars. Paul puts 12.5 gallons in his car and 0.75 gallon of gasoline in a portable tank. Write an expression that shows how many dollars he spent on gasoline .
Tuesday, August 30, 2016 by Amy

Math
If it takes 10 people 6 days to do a home improvement, how long would 4 take
Tuesday, August 30, 2016 by Anonymous

math homework
find a unit vector in the direction of u u = (-5, -12, 9) a. (-5, -12, 9) b. 1 / squareroot 26 (-5, -12, 9) c. squareroot 26 (-5, -12, 9 d. 1/ 5 squareroot 10 (-5, -12, 9) e. 1/ 5 squareroot 10 (5, 12, -9)
Tuesday, August 30, 2016 by lottie

math homework
solve the system by gauss jordan elimination { 1/3x + 3/4 y - 2/3 z = -8 x + 1/2 y - z = -24 1/6 x - 1/8 y - z = -24 a. (-6, 8, -24) b. (-6, -8, -24) c. (0, 8, -24) d. (6, 8, 24) e. (6, -8, 24)
Tuesday, August 30, 2016 by lottie

math homework
rewrite n E 5i^3 / n^5 i=1
Tuesday, August 30, 2016 by lottie

math homework help please?!!
use the first six terms to predict the limit of the sequence a subtext n = n+6 / n^3 +6 (assume n begins with 1) a. 1/6 b. 6 c. the sequence diverges d. 0 e. 1
Tuesday, August 30, 2016 by ottilie

math homework help please?!!
solve the system of equations algebraically for real values of x and y { x + y = 16 x^2 + y^2 = 128 a. (6,6) b. (8,6) c. (9,8) d. (8,8) e. no solution
Tuesday, August 30, 2016 by ottilie

math
Convert 4 millimeter to centimeters?
Tuesday, August 30, 2016 by Saram amjad

10th Grade Math
A history class is comprised of 6 female and 9 male students. If the instructor of the class randomly chooses 5 students from the class for an oral exam, what is the probability that 2 female students and 3 male students will be selected? Round your answer to 3 decimal places...
Tuesday, August 30, 2016 by Jonathan

Math
A die is rolle 16 times and the number that ad for each roll was recorded. Number on die for each roll 5 2 2 6 1 4 6 1 1 3 5 2 2 3 4 4 If this data were to be displayed using a dot plot, what numbers would be displayed along the horizontal number line? Which numbers along the ...
Tuesday, August 30, 2016 by Irene

math
Tania has 6 tiles with pictures of plants and 3 tiles with pictures of animals. Tania keeps all the tiles on a mat with the pictures hidden and mixes them up. She then turns one tile face up and finds the picture of a plant on it. She removes this tile from the mat and turns ...
Tuesday, August 30, 2016 by Daniela

Math
Consider an account with an APR of 8.5%. Find the APY with daily compounding.
Tuesday, August 30, 2016 by Nate

Math
Determine the balance if you were to invest 10,000 at an APR of 9% compounded monthly for seven years.
Tuesday, August 30, 2016 by Millie

math
3.96 x 10^2/ 1.5 x 10^6
Tuesday, August 30, 2016 by kaylee

Math
if p=8 evaluate 4^2/p•3 2 3 6<---- 8 Check my answer
Tuesday, August 30, 2016 by Mandy Todd

Math
A police car observes a truck traveling a 110kmph. The police car starts pursuit 30secs after the observation, accelerate to 160kmph in 20secs. Assuming the speeds are maintained const on a straight road, how far from the observation point, will the chase end?
Tuesday, August 30, 2016 by Shaik

Math
Check my answers please. 1)Which statement is an example of the Identity Property of Multiplication? a)8 • 0 = 0 b)8 • 1 = 8<<<< c)8 • –1 = –8 d)–8 • –1 = 8 2)Whats another way to write -3*(4+7)? a)-3*4+7<<<<< ...
Tuesday, August 30, 2016 by _Nutuge_

math homework help please?!!
determine lim f(x) x -> 1 where f(x) = { 13 - x^2, x < or equal to 1 11 - x, x > 1 a. 11 b. limit does not exist c. 13 d. 10 e. 12
Tuesday, August 30, 2016 by jessie

math
7x/8 = 21 i am kind of confused on this
Tuesday, August 30, 2016 by Jo

math
How do you simplify this expression? -12 / 3 x (-8+(-4)^2 - 6) +2 I got -8+2. Is this right?
Tuesday, August 30, 2016 by Jo

math
use eachof the digits 0-9 once. make two decimal numbers whose sum is close to 5 and whose difference is close to 1
Tuesday, August 30, 2016 by Kathy

mAtH
Does someone here has some tough simultaneous equations questions ? My test is coming and I want to practice some tough questions
Tuesday, August 30, 2016 by STRANGE

Math
If two numbers are in ratio 5:8 and their H.C.F. is 6 what are the numbers?
Tuesday, August 30, 2016 by Directioner

math
Shortly after metric units were introduced in Australia, a group of 44 students was asked to guess, to the nearest meter, the width of the lecture hall in which they were sitting. The true width of the hall was 13.1 meters. Please find the mean of the data. Guesses (Meters) 8...
Tuesday, August 30, 2016 by Leah

Math
An interior painter is painting a wall that is 8 feet by 14 feet. He needs to determine how much paint he will need for the job. If a pint will cover 40 square feet, how many pints of paint are needed to paint the wall?
Tuesday, August 30, 2016 by Anonymous

math
the population of a town increased from 30000 to 40000. what is the percent of increase
Tuesday, August 30, 2016 by mae

math homework
give the coordinates of the circles centre and its radius (x-7)^2 + (y+4)^2 = 16
Tuesday, August 30, 2016 by ottilie

math homework help
write the equation of the ellipse that has its centre at the origin with focus (0,4) and vertex at (0,7)
Tuesday, August 30, 2016 by laura

math
Find the absolute error, the upper limit and lower limit for 8 h, Least unit of measurement= 1h Absolute error =1/2 of 1 h = 0.5 h Upper limit = 8+0.5 = 8.5 h Lower limit = 8 - 0.5 = 7.5 h
Tuesday, August 30, 2016 by Bernard

math homework help
Find lim f(x+h) - f(x) / h h -> 0 for f(x) = 5-2x
Tuesday, August 30, 2016 by ottilie

math
A point P is 500m from the base of a pole. If the angle of elevation of the top of the pole to the point P is 40 degrees, find the height of the pole
Tuesday, August 30, 2016 by liz

math
evaluate the expression (94) 93 a. 94 b. 93 c. 1 d. 88 e. -5
Tuesday, August 30, 2016 by lottie

math
100 student appeared in class test for a combined english and hindi examination. 70 students passed in both,8 failed in english and hindi and 5 failed in hindi only find how manystudents failed in english and how many students passed in hindi also find how many students passed...
Tuesday, August 30, 2016 by david

Math
What is 210x2?
Tuesday, August 30, 2016 by Jazzy

Math
A craft project requires 5/6 yards of ribbon to make 4 refrigerator magnets.How many inches of ribbon are needed for each magnet?
Tuesday, August 30, 2016 by Henry

Math
A straight line x/a -y/b =1 passes through the point (8,6) and cuts off a triangle of area 12 units from the axes of coordinates .find the equation of straight line
Monday, August 29, 2016 by Anonymous

Math
List the multiples of 4 from 8010 to 8019
Monday, August 29, 2016 by Lin

Math
What is 4 x 6 x 5
Monday, August 29, 2016 by Vanessa

Math
What is 50x50 and why pls show work (don't show adult work I'm in 6 grade I'm not going to understand lol)
Monday, August 29, 2016 by Vanessa

math
Can you please help me. 3/x-1=8
Monday, August 29, 2016 by Mike

math
(x+2)/5=(10-2x)/3 Thank You.
Monday, August 29, 2016 by Trenton

math
why might you want to round to the nearest hundred rather than the nearest ten?
Monday, August 29, 2016 by stacey

Math
Write the greatest odd number that uses the digits 3 4 5 once each
Monday, August 29, 2016 by Rachel

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