Thursday
March 5, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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math
Solve for X and Y: 2^x=8^1+y And (x+2y)(x-y)=0
Thursday, March 5, 2015 at 8:24am

math
A cyclist covers his outward journey downhill at 24mph. His return journey, over exactly the same distance uphill, is covered at only 12mph. What is the cyclist's average speed over the entire journey?
Thursday, March 5, 2015 at 5:21am

math
A rectangle measuring 7cm by 4cm is enlarged by a ratio of 2:1.what is the area of the enlarged rectangle.
Thursday, March 5, 2015 at 1:46am

Math
Two complementary angles, A and B, have measures in the ratio of 7 to 23, respectively. What is the ratio of the measure of the complement of angle A to the measure of the complement of angle B? Express your answer as a common fraction.
Wednesday, March 4, 2015 at 11:34pm

MATH
I need help with a word problem. How many halves are there in two-fifths? 2/5 ÷ 1/2 = 4/5, so there are 2 halves is this correct
Wednesday, March 4, 2015 at 11:20pm

Math
Can anyone help me find links or sites about sum and product of the roots of quadratic equation solving real life problem involving similarity and proportion?
Wednesday, March 4, 2015 at 10:14pm

math
Two towns P and Q are 400 km apart. A bus left for P and Q. It stopped at Q for one hour and then started the return to P. one hour after the departure of the bus from P, a trail also heading for Q left P. the trailer met the returning bus ¾ of the way from P to Q. they...
Wednesday, March 4, 2015 at 10:13pm

math
For the following scenario, develop an equation and a set of 5 ordered pairs for equation: 1. the amount a sales person earns is a flat rate plus commission. 2. the volume of fuel in a snowmobiles tank related the distance travelled. 3. the cost of a hotel room is a flat fee ...
Wednesday, March 4, 2015 at 10:11pm

math
which sets of ordered pairs represents a linear relationship? if the relationship is linear, calculate the rate of change of the dependent variable. 1. (-2,4),(-1,1),(0,0),(1,1),(2,4),(3,9) 2. (5,13),(6,15),(7,17),(8,19),(9,21),(10,2​3) 3. (1,-14),(3,-5),(6,4),(9,13),(12...
Wednesday, March 4, 2015 at 10:09pm

math
Give that x is angle in the first quadrant such that 8sin 2x + 2cosx – 5 = 0 Find: cosx tanx
Wednesday, March 4, 2015 at 9:53pm

MATH
Please I need help with a fraction word problem. Peter and Eric bought a large pizza that has 12 slices. John and Eric ate all the pizza. If John ate 4/6 slices, how much did Eric eat? Who ate more pizza? My answer is Eric ate 4/12 of the pizza and John ate more than Eric. Am ...
Wednesday, March 4, 2015 at 9:38pm

Math
Rachel planted a flower garden. She planted roses in 1/4 of the garden and 1/3 of the roses were pink. She planted tulips in 1/3 of the garden and 1/3 of the tulips were pink. How many roses were there in Rachel's garden?
Wednesday, March 4, 2015 at 9:33pm

Math
T'Mara knew that her trip would take about 7 hours. If she left at half past nine in the morning,around what time should she arrive
Wednesday, March 4, 2015 at 9:13pm

Math (advice)
So in my calculus class we learned about implicit differentiation today. The professor would stop and ask if we had any questions, which was nice. I didn't ask any questions though, because I don't really like to ask questions during class. I didn't really get ...
Wednesday, March 4, 2015 at 9:09pm

Math 6th grade
Explain what a neutral field is.
Wednesday, March 4, 2015 at 9:03pm

6th grade math
Use the scale 1/4 = 9 ft to represent a 27 ft square
Wednesday, March 4, 2015 at 8:50pm

math
If a tire is 68 inches around what would the radius of the tire be
Wednesday, March 4, 2015 at 8:43pm

Math
Tricia travels 45 miles in one hour .at this rate,how long would it take her to travel 225 miles
Wednesday, March 4, 2015 at 8:35pm

math
The directions for lemonade say to put 2 cups of the liquid concentrate into 1 gallon of water. If Olivia only wants to make 1 pint of lemonade, how many fluid ounces of concentrate should she use? Explain.
Wednesday, March 4, 2015 at 8:29pm

Math
Good day! Can anyone give links about the sum and product of roots of quadratic equation solving real-life problem involving similarity and proportion? I need it as soon as possible. The more links you'll give, the more I'll be grateful to you. Thanks!
Wednesday, March 4, 2015 at 8:25pm

Math
Karen collects 6/7 qt of rainwater. She uses 1/2 of the water to clean her bicycle and uses the remaining water equally for 3 houseplants. What volume of water does she use for each houseplant ?
Wednesday, March 4, 2015 at 7:47pm

math
18*5 1/16=
Wednesday, March 4, 2015 at 7:10pm

math
5*5 1/16=
Wednesday, March 4, 2015 at 7:10pm

math
A rectangular tank measures 30cm by 15 cm by 20 cm. It contains water to a depth of 15 cm. How many metal cubes of edge 5 cm need to be placed in the water to raise the water level to the brim of the tank?
Wednesday, March 4, 2015 at 7:03pm

math
Is sin function continuous?
Wednesday, March 4, 2015 at 7:00pm

Math
Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 0.2x - 0.5y = -27.8 0.3x + 0.4y = 68.7
Wednesday, March 4, 2015 at 6:52pm

math
Critique Reasoning Alex decides that 21 divided by 3 = 7 is NOT a true equation. Is Alex correct? Explain
Wednesday, March 4, 2015 at 6:46pm

math
Nokia school day last 7 hours and 20 minutes how many minutes does Nikki's school day last explain how you found the answer
Wednesday, March 4, 2015 at 6:18pm

Math
1. Mailey mother brought her a pet hamster. She is keeping Montey, the hamster, in a box with a length of 8.3 in.,a width of 6in.,and a height of 5,25in. Mailey plans on covering Montey's box with contact paper. How many square inches of contact paper is needed to ...
Wednesday, March 4, 2015 at 6:09pm

math
Solve this.. ◻ ➕ ◻ ➕ ◻=30 Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
Wednesday, March 4, 2015 at 5:58pm

math
Select the sentence that is correctly completes the sentence below. to convert from a smaller unit
Wednesday, March 4, 2015 at 5:56pm

Math
I can't unscramble this. GONUENRIC It deals with Geometry.
Wednesday, March 4, 2015 at 5:55pm

math
roy has 11 model cars that are all red or black. He has 3 more red cars than black cars. How many black cars does he have?
Wednesday, March 4, 2015 at 5:40pm

Math
A ship sailing west toward shore, and there are tow ports on the horizon. The ports are 17 miles apart, and from the ship's vantage point, point A is 30 deg North of straight ahead and port B is 80 deg South of straight ahead. Approximately how much farther is it fro the ...
Wednesday, March 4, 2015 at 5:33pm

Math
Person A starts walking SW froma point at a speed of 13m/s. Ten seconds later person B starts walking from the same point and travels east at 10m/s. After person B have been walking 30 seconds, approximately how far apart are the two?
Wednesday, March 4, 2015 at 5:30pm

math
tow people begin walking from the same point at the same time. One walks due south at 3 mph and the other walks southeast at 4 mph. Approximately how far apart are the two after one hour walking?
Wednesday, March 4, 2015 at 5:27pm

math
A square tabletop is 5 feet long on each side. Kevin wants to tile the tabletop. how much tile does he need to cover the tabletop.
Wednesday, March 4, 2015 at 5:21pm

math
Solve this.. ◻ ➕ ◻ ➕ ◻=30 Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
Wednesday, March 4, 2015 at 5:08pm

math
Find the equation of the circle with center on the line x-2y+2=0 and which touchesboth positivex and positive y axes.
Wednesday, March 4, 2015 at 4:32pm

Math
One and seven eights is close to______ inches A.1. B. 2. C. 3
Wednesday, March 4, 2015 at 4:11pm

math
Garden is 10 1/4 ft long and 6 ft wide, what is the total area?
Wednesday, March 4, 2015 at 4:11pm

math
When it is assembled, a flute is 28 inches long. The middle piece m is 5 inches less than twice as long as the first piece f. The last piece l is two-thirds as long as the first piece. Find the length of each piece of the flute
Wednesday, March 4, 2015 at 4:07pm

math
A number of circles touch each ather. The area of the smallest circle is 4n cm^2 and each consecutive circle has area 9/4 times that of the previous one. If the distance AB=665/8. Line AB passes at the centre of the circles. How many circles are there?
Wednesday, March 4, 2015 at 3:33pm

Statistics Help
Express the confidence interval (0.024, 0.112) in the form of p-hat – E < p < p-hat + E = __< p < __ I don't understand how to perform this formula. Please help I am about to graduate and this is my last class, and I am struggling as I only know basic Math...
Wednesday, March 4, 2015 at 3:18pm

Math
Can someone please help. How log will it take you to save $100,000 if you start saving 1597 every 3 months starting today? Assume and interest rate of 6% compounded quarterly. Business Calculator py/cy= 4 I=6% fv= 100,000 1597= PMT BGN is on
Wednesday, March 4, 2015 at 3:18pm

math
how do you create of six values that does not represent a linear relation. All the y-values must increase in value as x increase in value?
Wednesday, March 4, 2015 at 1:52pm

Math Check
Are my answers correct? Tell whether the system is inconsistent OR dependent. 1.) -7x+6y=-4 14x-12y=8 2.) 3x-y=7 -6x+2y=8 My answers: 1.) inconsistent 2.) Dependent
Wednesday, March 4, 2015 at 1:32pm

statistics/Help Please!!
In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained:0.18, 0.12, 0.05, 0.19, 0.18,0.13, 0.15. Assuming that this sample is representative of the cars in use, construct a 98% confidence interval ...
Wednesday, March 4, 2015 at 1:10pm

math
what is the function rule? x= -2, -1, 0, 1, 2 y= 9, 4, -1, -6, -11
Wednesday, March 4, 2015 at 1:03pm

math
develop an equation and a set of 5 ordered pairs for equation: 1. the amount a sales person earns is a flat rate plus commission. 2. the volume of fuel in a snowmobiles tank related the distance travelled. 3. the cost of a hotel room is a flat fee plus a fee per adult ...
Wednesday, March 4, 2015 at 10:30am

math
the first term of the arithmetic sequence is -37 and the second term is-30 what is the smallest positive term of the sequence?
Wednesday, March 4, 2015 at 10:30am

math
the first term of the arithmetic sequence is -37 and the second term is-39 what is the smallest positive term of the sequence?
Wednesday, March 4, 2015 at 10:28am

math
Find D Varation Of D Following Number 2,4,6,8,10,10,12
Wednesday, March 4, 2015 at 9:11am

Math Help
Are my answers correct? Tell whether the system is inconsistent OR dependent. 1.) -7x+6y=-4 14x-12y=8 2.) 3x-y=7 -6x+2y=8 My answers: 1.) inconsistent 2.) Dependent
Wednesday, March 4, 2015 at 9:06am

Math Check
Hi! Can someone check my answers? Thanks! Directions: Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9 My answers: 1.) (3,7/5) 2.) (-17,5)
Wednesday, March 4, 2015 at 9:05am

math
Is the only way to check if a set of vectors are linearly indep. is if the det does not equal 0? I have a problem where v1= [1;2;1;-1] v2=[0;2;1;1] v3=[3 1 0 2] but this creates a 3X4 matrix and you can't find the det of this. I am really confused! thanks :D
Wednesday, March 4, 2015 at 8:53am

math
f(x)=(2x-3) (gof)(x)=4x2-16x+18 g(x)...?
Wednesday, March 4, 2015 at 8:34am

math
Solve it... [ ] [ ] [ ] = 30 fill the brackets using below numbers ( 1, 3, 5, 7, 9, 11, 13,15 ) you can repeat the numbers... Please help me! Many more people unsucceed to solve it
Wednesday, March 4, 2015 at 5:23am

math
How many square on a chess board? How to find out it? Please explain....
Wednesday, March 4, 2015 at 5:14am

math 11
Paula lent Ned $1200 to help him pay for a mountain bike that he desperately wants. She charged him 8%/a simple interest, payable weekly. Ned paid back the loan plus interest, in equal payments over 20 weeks. a) How much interest will Ned have to pay? [2 marks] b) What will ...
Wednesday, March 4, 2015 at 2:49am

math
May Ling borrowed $2500.00 for vehicle repairs from her parents. She agreed to pay back the loan plus 7.5% simple interest on the $2500 added on in equal monthly payments over the next 6 months. a) How much interest will May Ling have to pay? [2 marks] Monthly rate = ...
Wednesday, March 4, 2015 at 2:47am

3rd garde math
seth bikes 3 miles in 10 minutes and 30 miles in 100 minutes. How many miles does seth bike in 1000 minutes
Wednesday, March 4, 2015 at 2:46am

math
rearrange the numbers in a 4 x 4 array so that each row column and diagonal equal 10 using numbers 1-4
Wednesday, March 4, 2015 at 2:04am

Math
What is the volume of a square glass window with a side length of 1 3/4 ft and a width of .08 ft?
Wednesday, March 4, 2015 at 1:34am

math
A number of circles touch each ather. The area of the smallest circle is 4picm2 and each consecutive circle has area 9/4 times that of the previous one. If the distance AB=665/8. Line AB passes at the centre of the circles. How many circles are there?
Wednesday, March 4, 2015 at 12:13am

math
An antique clock takes 5.5 seconds to chime at 3 o'clock. How long does it take to chime at 9 o'clock ? 5.5/2= 2.75x8=22seconds
Wednesday, March 4, 2015 at 12:01am

math
A number of circles touch each ather. The area of the smallest circle is 4picm2 and each consecutive circle has area 9/4 times that of the previous one. If the distance AB=665/8. Line AB passes at the centre of the circles. How many circles are there?
Wednesday, March 4, 2015 at 12:01am

math
How do I round this to the nearest ten thousand 1,112,433
Tuesday, March 3, 2015 at 11:54pm

math
Susie uses 1/2 to help compare 1/3 to 3/5 and to help in comparing 3/7 with 2/3. Explain how 1/2 help determine which fraction is greater in each combination.
Tuesday, March 3, 2015 at 11:44pm

math
five friends went to a baseball game. three of the friends each bought a ticket for x dollars and a soda for six dollars the other two friends each bough only tickets. write and simplify and expression that represent the amount of money spent
Tuesday, March 3, 2015 at 11:28pm

math
Tony plans to install a window pane that has a length of 8 inches and a width of 6 inches. He decides that the length has to be reduced by z inches. He says that the new area of the window pane will be 48−z. Is Tony correct? Why or why not? THANK YOU!!!!!
Tuesday, March 3, 2015 at 10:58pm

math
Janice plans to build a rectangular table top with an area of 60+20r square inches. The width of the table top is 10 inches. What is the length of the table top?. THANK YOU
Tuesday, March 3, 2015 at 10:48pm

math
Emma's school plans to build a rectangular basketball court with an area of 150+175t square feet. The length of the basketball court is 25 feet.What is the width of the basketball court? Thank you!
Tuesday, March 3, 2015 at 10:42pm

math
Emma's school plans to build a rectangular basketball court with an area of 150+175t square feet. The length of the basketball court is 25 feet as shown in the following diagram. Thank you!
Tuesday, March 3, 2015 at 10:35pm

Math
For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was 5 cents, and the number of reserved seats sold was 1/25 of the number of unreserved seats sold.If, at a second game, the price of the reserved seats is to be ...
Tuesday, March 3, 2015 at 10:18pm

Math
Come pleat the table to represent each part of the formula. The data values have been put in ascending order. ---- X, (X, - x) 2 30 ? 32 ? 33 35 49 50 50 71 73 77
Tuesday, March 3, 2015 at 10:15pm

Math
What is 8 3/4 - 5 5/6 = Is 24 the Denominator for this problem? Show all the work.
Tuesday, March 3, 2015 at 10:03pm

math
what percent of student perform at the national average. there are 32 kid
Tuesday, March 3, 2015 at 9:36pm

math
You need at least 5 pounds of potatoes and onions. Potatoes cost $4 per pound and onions cost $2 per pound. You can spend at most $18. a) define the variables b) a system of linear inequalities that represents this situation.
Tuesday, March 3, 2015 at 9:34pm

Math Check
Can someone check my answers? Thanks! Tell whether the system is inconsistent OR dependent. 1.) -7x+6y=-4 14x-12y=8 2.) 3x-y=7 -6x+2y=8 My answers: 1.) inconsistent 2.) Dependent
Tuesday, March 3, 2015 at 8:51pm

Math
Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9
Tuesday, March 3, 2015 at 8:50pm

math
bobs monthly phone bill is made up of a 10.00 fee plus $0.05 per min.bobs phone bill for july was 22.00 write an equation to model the situation using m to represent the number of min. solve the bequation to determine the number of phone mins.bob used in july
Tuesday, March 3, 2015 at 8:49pm

math derivatives
derivative of ln[(1+v)^(1+v)(1-v)^(1-v)] I know my log rules allow me to rewrite this as ln[(1+v)(1+v)+(1-v)(1-v)] but what I do from there i dont know.... Wolfram says it is ln(v+1)-ln(v-1)but i dont know how to get that...
Tuesday, March 3, 2015 at 8:47pm

Math
What is 13 3/5 - 6 1/4 =? Show me the work please.
Tuesday, March 3, 2015 at 8:03pm

Math
What is 8 3/4 - 5 5/6 =? Shouldn't the denominator be 24 ? What is this answer please show the work.
Tuesday, March 3, 2015 at 8:01pm

Math
Which relation is a function? (Points : 1) A.(1, 2), (1, 5), (1, -1), (1, 4)} B. {(8, -1), (2, -1), (3, 8), (2, 5} C. {(-3, 4), (-2, 5), (0, 9), (0, 12)} D. {(7, 12), (1, -5), (3, -10), (2, -5)} Is its C :P?
Tuesday, March 3, 2015 at 7:56pm

Math
Sara long jump was 10 feet. That is 5/6 foot longer than Tom's long jump. Did Tom jump more or less than 10 feet? I think I have to multiply and so Tom's jump was less by . I think his jump was 8 1/2 feet. Is tis correct?
Tuesday, March 3, 2015 at 7:53pm

math
emily pays $93 each year to belong to a photography club. next year, the membership fee will increase by 12.5%. emily estimates that the membership will just be under $100 each year after the increase. what is a true statement about emily's estimate? a. her estimate is ...
Tuesday, March 3, 2015 at 7:44pm

math
I am less than 20 I am an odd number I am the square root of 225 I am
Tuesday, March 3, 2015 at 7:44pm

Math
Bill plays ball for 9 hours each week. His friend Mark spends as much time playing ball. Who plays more ball? I think I have to divide. So I think Mark plays more ball by 10 4/5 hours. Is this correct? Thank you so very much for your help Ms. Sue.
Tuesday, March 3, 2015 at 7:32pm

math
8sin^4(x)
Tuesday, March 3, 2015 at 7:26pm

Math
Hank's fish bowl holds 9/10 gallon of water. It is now 2/3 full. How much water is in the bowl? I subtracted and my answer is 7/30. Is this correct?
Tuesday, March 3, 2015 at 7:23pm

Math
I can throw a ball 10 1/3 yards. My cousin can throw a ball 13 1/12 yards. How much farther can my cousin throw the ball? I think I have to subtract and my answer is 2 3/4 yards farther. Is this correct?
Tuesday, March 3, 2015 at 7:18pm

Math
Amy uses 8 cups of flour to make 3 identical loaves of bread.How much flour is in each loaf? I think it is division and I got 2 2/3 cups of flour. Is this correct?
Tuesday, March 3, 2015 at 7:14pm

MATH
In Mrs.Marshall'd classroom, 6/7 of the students play sports. Of the students who play sports, 4/5 also play as instrument. If there are 35 students in her class, how many play sports and an instrument?
Tuesday, March 3, 2015 at 7:10pm

Math
Sue's kitten eats 1/12 pound of food everyday. If Sue buys food in 5 pound bags, how many days does one bag of food last? I think I would divide and the answer would be 60 days is this correct?
Tuesday, March 3, 2015 at 7:10pm

math
At a school camp, 30% of the students were boys. When 87 students left the camp after the second day, half the original number of boys were left behind, and the number of girls decreased by 20%. How many girls were at the camp in the beginning?
Tuesday, March 3, 2015 at 7:08pm

Math
Find the area of the basketball court. The length of the rectangle is 100m and the radius of the seni-circle is 25m.
Tuesday, March 3, 2015 at 7:06pm

Math
Bill can ride his bike 7 1/2 miles in a hour. a. How far will he ride in 3 hours? b. How far will he ride in 1/3 of an hour? I think for a. the answer is multiply so it would be 22 1/2 miles and for b. it would be 2 1/2 miles. Is this correct?
Tuesday, March 3, 2015 at 7:06pm

Math
The area of a rectangular field is given by the trinominal t^2-4t-45. The length of the rectangle is t+5. What is the expression for the width of the field? A) t-9 B) t-5 C) t-11 D) t-7 Can someone please help? Thank you!
Tuesday, March 3, 2015 at 6:42pm

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