Monday
May 25, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

math
what is 1255 to the nearest 3000
Thursday, May 14, 2015 at 2:56pm

Math
For a math homework assignment, Karla found the area and perimeter of a room of her house. She reported that the area of her rectangular living room is 180 square feet and that the perimeter is 54 feet. When drawing a sketch of her living room the next day, she realized that ...
Thursday, May 14, 2015 at 2:48pm

math
Given the points A(0,0), B(4,3), and C(2,9), what is the measure of ABC?
Thursday, May 14, 2015 at 2:30pm

MATH
For questions 1 and 2, write each expression using a single exponent. 1.x^9 --- x^2 A.x^11****** B.x^7 c.7 D.x^5 2. h^14 ----- h^3 A. h^-9 B. 1 ---- h^9 C.h^19***** D. h^9 Are these the correct answers or do I have to subtract the exponents? Thank you
Thursday, May 14, 2015 at 2:23pm

math
Completely factor the expression 16t3 − 50t2 + 36t. A. 2t(8t −&nbs​p;9)(t − 2) B. Prime C. 2t(8t + 9)(t + 2) D. 2t(8t − 25t ​;+ 18)   Completely factor ...
Thursday, May 14, 2015 at 2:11pm

math
PLEASE HELP I WOULD REALLY APPRECIATE IT! 1. Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38 ANSWERS: A) n+7;707 B) 7n:700 C) 7n-4;696 ** D) 6n-4;596 2. Write a rule for the function represented by the table. ...
Thursday, May 14, 2015 at 2:08pm

Math
For (x-4)^2/36 + (y-1)^2/25 = 1, are the vertices (-2, 1) and (10, 1)?
Thursday, May 14, 2015 at 1:57pm

Math help please
What is the probability of a number from 1-12 being P(a factor of 12)? 12.5% 25% 50% 62.5%
Thursday, May 14, 2015 at 1:41pm

math
Completely factor the expression 16t3 − 50t2 + 36t. A. 2t(8t −&nbs​p;9)(t − 2) B. Prime C. 2t(8t + 9)(t + 2) D. 2t(8t − 25t ​;+ 18)   Completely factor ...
Thursday, May 14, 2015 at 1:23pm

math
Completely factor the expression 2a3 − 128. A. 2(a − 4)3 B. 2(a − 4)(a2 + 4a + 16) C. 2(a3 − 64) D. Prime Completely factor the expression 7(x − y) − z(x − y). A. Prime B. (x − y)(7 − z) C. (x − y)(7 + z) D. (x −...
Thursday, May 14, 2015 at 1:07pm

Math 100
A triangular prism measures 81 cm long. Its cross section is an equilateral traingle with a base of 16 centimeters and a height of 14 cm. Find the surface area of this triangular prism.
Thursday, May 14, 2015 at 1:03pm

Math
Can someone help me? If a and b are any two real numbers, explain how you calculate the difference a – b. Be sure to include the following in your explanation: a. A description of the relationship between addition and subtraction b. How you can use a number line to help ...
Thursday, May 14, 2015 at 12:43pm

Math
Center at (2,-5), conjugate axis parallel to the y-axis, slopes at asymptotes numerically one-sixteenth times the length of the latus rectum, and distance between foci is 2sqrt145.
Thursday, May 14, 2015 at 12:34pm

Math
With transverse axis parallel to the x-axis, center at (2,-2), passing through (2 + 3sqrt2, 0) and (2 + 3sqrt10, 4)
Thursday, May 14, 2015 at 12:33pm

math
An architect designs a house that is 12m wide. The rafters holding up the roof are equal length and meet at an angle of 68 degrees. The rafters extend 0.6m beyond the supporting wall. How long are the rafters?
Thursday, May 14, 2015 at 12:28pm

math
Find the product of (2a + 3b)(2a − 3b). A. 4a2 − 6b2 B. 2a2 − 3b2 C. 4a2 + 12ab − 9b2 D. 4a2 − 9b2 plz help
Thursday, May 14, 2015 at 12:27pm

MATH PLEASE HELP THIS IS A TEST!!!!!!!!!!!!!!!!
Which events are NOT independent? Landing on heads after tossing a coin and rolling a 3 on a 6- sided number cube Choosing a marble from a jar and landing on tails after tossing a coin Choosing a 5 from a deck of cards replacing it and then choosing an ace as the second card ...
Thursday, May 14, 2015 at 10:22am

MATH PLEASE HELP
A single, standard number cube is tossed. What is the probability of getting a number other than 6? A. 1 B. 1÷3 C. 5÷6 D. 1÷6 A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number less than 4 A. 1 ÷ ...
Thursday, May 14, 2015 at 9:44am

Math
The Pont du Gard near Nîmes, France, is a Roman aqueduct. An observer in a hot-air balloon some distance away from the aqueduct determines that the angle of depression to each end is 54° and 71°, respectively. The horizontal distance between the balloon and the ...
Thursday, May 14, 2015 at 9:19am

math
a ship leaves point A and travels 60 miles due east, then travels northward 59 degrees to point C, and travel 60 miles to point C, find the distance from point A to point C
Thursday, May 14, 2015 at 8:19am

Math
Simplify -5x-5y+3+x+2y-3.
Thursday, May 14, 2015 at 8:16am

math
A popular extreme activity is bungee jumping. A person whose ankles are attached to a bungee cord, jumps off a ledge and bounces upside-down in mid-air. Suppose a person jumps off the ledge and falls 122 ft before rebounding. Consider the point at which the person rebounds to ...
Thursday, May 14, 2015 at 4:52am

math
An insurance company wishes to examine the relationship between income (in $,000) and the amount of life insurance (in $,000) held by families. The company drew a simple random sample of families and obtained the following results: Family - Income - Amount of Life Insurance A...
Thursday, May 14, 2015 at 12:38am

Math
Whitney invested $25,000, part at 19% and part at 6%. If the total interest at the end of the year is $3,320, how much did she invest at 19% ?
Wednesday, May 13, 2015 at 11:16pm

math
At Frugal Foods a loaf of bread cost about $1 in 1980. In 2013, the loaf of bread cost $2.50. 1.A ratio is a comparison of two amounts by division. What is the ratio of the cost of a loaf of bread in 2013 to the cost in 1980? *$2.50/1 2.Assuming the price of clothing increased...
Wednesday, May 13, 2015 at 10:17pm

Math
The cost T, in hundreds of dollars, of tuition and fees at many community colleges can be approximately by T=1/4c+6,where c is the number of credits for which a student registers. Graph the equation and use the graph to estimate the cost of tuition and fees when a student ...
Wednesday, May 13, 2015 at 10:09pm

Math
Corey wants to buy grass seed for his yard, which measures 252 square feet. Each bag of grass seed covers 12 square feet. What fraction of his yard will one bag of seed cover?
Wednesday, May 13, 2015 at 9:29pm

Math
Kelly makes fruit juice each morning. She uses 2 1/3 pints of strawberries and 1 2/5 pints of grapes in her juice. If she doubles her recipe, how many more points of strawberries than pints of grapes will she use?
Wednesday, May 13, 2015 at 9:27pm

math
Wayne filled 5 glasses with 2/3 liter of soda in each glass. How much soda did Wayne use?
Wednesday, May 13, 2015 at 9:21pm

Math @Reiny
Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) Major Axis of length 8
Wednesday, May 13, 2015 at 9:10pm

Math
The length and width of Nicole's laptop are 14 inches and 16 inches, respectively. What is the area covered by the laptop?
Wednesday, May 13, 2015 at 8:24pm

math
A salesperson's ratio of successful signups to the number of people called is  0.875.  This month, the salesperson had  175  signups. How many people did the salesperson call this month?
Wednesday, May 13, 2015 at 8:17pm

math
a box is to be made by cutting out the corners of a square piece of cardboard and folding the edges up. if 3-inch squares are to be cut out of the corners and the box contains 243 cubic inches, what is the length of a side of the original cardboard square
Wednesday, May 13, 2015 at 8:00pm

Math
A rectangular prism has a high of 3 inches and a volume of 27 in³. the height of the prism is changed to 6 inches and the other dimension stay the same. what is the volume of the prism with this change?
Wednesday, May 13, 2015 at 7:36pm

Math
Q. Mr. Kincaid's class wants to plant 1/4 (fraction) of its 12-foot-square plot with tomatoes. Of the remaining garden, 1/3 will be pears. Of the rest of the plot,1/2 will be radishes, and 1/2 will be lettuce. How many square feet of radishes will the class plant.?
Wednesday, May 13, 2015 at 7:31pm

Math
Write the rule for this table as an equation. Write your answer as an equation with f first, followed by and equals sign z=3, f=50 z=4, f=61 z=5, f=72 z=6, f=83
Wednesday, May 13, 2015 at 7:08pm

Math
1.) Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) 2.) Write the standard form equation for the following Hyperbola. Use the information below. Vertices (-2,1) and (2,1) Foci: (-3,1) and (3,1)
Wednesday, May 13, 2015 at 6:29pm

Math Check
Hi! Can someone check my answers? Thanks! Questions: 1.) What are all of the foci's for this Ellipse? (x-2)^2/3 + (y-2)^2/4=1 A.) (3,2) B.) (2,2) C.) (1,2) D.) (2,3) E. (2,1) My answer: B & E. 2.) What is the eccentricity for this Ellipse? A.) 2 B.) 1/2 C.) 3/4 D. 1 My ...
Wednesday, May 13, 2015 at 6:08pm

math help please
Write each expression using a single component. X^9 ---- X^2 A.x^11 B.x^7 C.7 D.x^5 2. h^14 -------- h^5 A.h^-9 B. 1 --- h^9 C.h^19 D.h^9 My answers are 1.A, 2.C are they right?
Wednesday, May 13, 2015 at 6:04pm

math
Find the area of the rectangle. The top is 7x+1, and the right side is 8x. A.15x+1 B.56x^2+8x C.56x+8 D.15x^2+9x Is the answer B?? Please help
Wednesday, May 13, 2015 at 5:46pm

Math
For the solutions of 4tantheta = 5tantheta + sqroot3, can both these answers be acceptable? 120 + 180n -60 + 180n
Wednesday, May 13, 2015 at 5:33pm

Math Ms.Sue???
Find the surface area of the cone. Use 3.14 for pi. The diameter is 8in and the height is 7in please help asap!! And thank you for your time. Ms.Sue?
Wednesday, May 13, 2015 at 5:32pm

math help please
Find the area of the Rectangel. . 7x+1 ------------- | |8x | | | | ------------- A.15x+1 B.56x^2+8x C.56x+8 D.15x^2+9x I don't know what to do please help me. I don't understand.
Wednesday, May 13, 2015 at 5:23pm

Math
Find the surface area of the cone. Use 3.14 for pi. The diameter is 8in and the height is 7in please help asap!! And thank you for your time. Ms.Sue?
Wednesday, May 13, 2015 at 5:13pm

Math
Find the surface area of the cone. Use 3.14 for pi. The radius is 8in and the height is 7in please help asap!! And thank you for your time. Ms.Sue?
Wednesday, May 13, 2015 at 5:07pm

math
a bicycle wheel has a diameter of 63cm.calculate how many times the wheel turns round in travelling 19.8km.use the value 31/7 for pie
Wednesday, May 13, 2015 at 4:53pm

math help please
Find the product. -3m(m+8) A.-3m^2+42 B.-3m^2-24m C.-24m^2 D.-4m+5 Is the answer B??
Wednesday, May 13, 2015 at 4:49pm

math
Find the product. (2x)(10x) A.20x B.12x C.20x^2 D.-5x Is the answer A?? Thanks
Wednesday, May 13, 2015 at 4:43pm

Math
the probability of having a winning raffle ticket is 15%. If you bought 40 tickets, how many winning tickets should you expect to have? A: 3 B: 6 C: 15
Wednesday, May 13, 2015 at 4:34pm

Math
2. 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...
Wednesday, May 13, 2015 at 3:44pm

math
Julius has a garden that has dimensions of 12 ft by 20 ft. Julius needs more room to plant some peppers, and determines the garden will need a new area of 360 square feet. How much should he increase the length and width by, if
Wednesday, May 13, 2015 at 3:42pm

Math
Two ladders are the same distance from the base of a wall. The longer ladder is 15m long and makes an angle of 58 with the ground. if the shorter ladder is 12.6m long, what angle does it make with the ground?
Wednesday, May 13, 2015 at 3:42pm

Math
If Nathan saves 35% on a $22.50 dress shirt how much did he save?
Wednesday, May 13, 2015 at 3:41pm

math
Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38... A. n+7;707 B. 7n;700 C. 7n-4;696 D. 6n-4;596
Wednesday, May 13, 2015 at 2:56pm

Math
A drawer contains 2 red socks, 3 white socks, 3 blue socks. Without looking , you draw out a sock, then return it, and draw a second sock. What is the probability that the first sock is blue and the second is red? 3/8, 2/5, 29/32, 3/32 I chose 3/8 is that correct
Wednesday, May 13, 2015 at 2:13pm

Math
a standard number cube is rolled 180 times. Predict how many times a 3 or 5 will be the result. 31 times 60 times 57 times 30 times I chose 31 times Is that correct i would appreciate your help
Wednesday, May 13, 2015 at 1:47pm

Math
For the solutions of 4tantheta = 5tantheta + sqroot3, can both these answers be acceptable? 120 + 180n -60 + 180n
Wednesday, May 13, 2015 at 1:24pm

Math
If no digit may be used more than once, how many 5 digit numbers can be formed using only the digits 3,8,1,2,5 and 7? my answer is 360
Wednesday, May 13, 2015 at 12:43pm

Math
Find all the solutions of 5sintheta - 4 = 2sintheta - 4 in 0 to 2pi. 0, pi, and 2pi?
Wednesday, May 13, 2015 at 12:33pm

Math
Please show how 7/8 is greater than, less than, or equal to 7/24. Thanks
Wednesday, May 13, 2015 at 12:14pm

Geometry/Math
Two right circular cylinders have equal volume. The first cylinder has a radius of 6 inches and a height of 12 inches. What is the number of inches in the height of the second cylinder if its radius is 8 inches? Express your answer as a common fraction, without units.
Wednesday, May 13, 2015 at 11:57am

Math
Hi there! I am so confused about these questions if anyone could help that would be great. 1. Simplify. x+5/x^2+6x+5 A) 1/x+1; where x= -1*** B) 1/x+1; where x=-1,-5 C) 1/x-5; where x=5 D) x-5 2. Simplify. x^2+3x-4/x+4 A) 1/x-4; where x=4 B) x-4 C) x-1; where x=1 D) x-1; where...
Wednesday, May 13, 2015 at 11:38am

MATH I NEED HELP
Game wardens use experiments to help determine the number of deer in the state of North Carolina. Suppose 120 deer are caught, tagged, and released into the wild. A month later, 800 deer are caught with 16 found to have tags. Using this information, estimate the number of ...
Wednesday, May 13, 2015 at 11:18am

Math
Zoe's gross income is $16,960. His medical expenses for the year amounted to $812.35. If he can deduct only the amount over 7 1/2% of his gross income for medical expenses, how much can he deduct for medical expenses?
Wednesday, May 13, 2015 at 11:15am

Math
Rad makes six payments a year of $175.50 for his auto insurance. How much must he budget weekly to cover this fixed expense? a. $20.25 b. $43.88 c. $1,053 d. $87.75 Rod makes six payments a year of $150 for his auto insurance. How much must he budget weekly to cover this fixed...
Wednesday, May 13, 2015 at 9:50am

Math
Show that the equation x = 1/5(x^4 +2) has two real roots, both of which are positive. Evaluate the smaller root correct to 3 decimal places, using Newton‘s method.
Wednesday, May 13, 2015 at 9:49am

Math
By drawing suitable sketches, state the number of (i) positive, (ii) negative roots of the following equation x+1 = cos x .
Wednesday, May 13, 2015 at 9:47am

Math
Prove, by mathematical induction, or otherwise, that 1*1!+2*2!+3*3!+…+n*n!=(n+1)!-1
Wednesday, May 13, 2015 at 9:46am

Math
Carl borroowed $2,500 for six months at an annual interest rate of 11%. How much must he repay at the end of six months? a. $275 b. $2,637.50 c. $87.50 d. $2,762.50 Please show all steps needed to get answer in simple terms.
Wednesday, May 13, 2015 at 9:15am

math
Jenny has a problem where she has to measure an angle that is drawn on the paper. She is going to use this protractor to do so. How precise can she be?
Wednesday, May 13, 2015 at 8:36am

math
Q2. An agriculture field is rectangular,with dimensions 100m by 42m.A 20m deep well of diameter 14m is dug in acorner of the field and the earth taken out is spread evenly over the remaining part of the field. Find the increase in the level of the field.
Wednesday, May 13, 2015 at 7:02am

math
A40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form aplateform of dimension 28m by 22m.find the height of the platform.
Wednesday, May 13, 2015 at 6:28am

Math
Find the numerical value of the coefficient x^11 in the expansion of (x^2+1/x)^10 in the powers of x.
Wednesday, May 13, 2015 at 5:53am

math
the cost of painting the circular traffic sign shown below is $3.50 per square foot.how much,to the nearest dollar,will it cost to paint the sign if its diameter measures 36 inches?
Wednesday, May 13, 2015 at 5:41am

Math
A ball is dropped from a height of 16 feet. Each time the ball dropped h feet, it rebounds 0.81h feet. Find the total vertical distanced travelled by the ball.
Wednesday, May 13, 2015 at 5:08am

Math
The sixth term of an arithmetic sequence is 20.6 and the 9th term is 30.2. Find the 20th term and find the nth term.
Wednesday, May 13, 2015 at 4:25am

Math: Line Symmetry and Reflection
1. The point c(x,y) is reflected over the x-axis. Use arrow notations to describe the original point and its reflection. a. (x,y) --> (x,2y) b. (x,y) --> (-x,y) c. (x,y) --> (-x,-y) d. (x,y) --> (x,-y) ** 2. What is the correct description for the translation of A ...
Wednesday, May 13, 2015 at 2:41am

Math
How to find the zeros of -16t^2 + 200 = 0?
Wednesday, May 13, 2015 at 2:27am

Math
What are all the solutions for 4sintheta + 1 = 2sintheta from 0 to 2pi? Would it be 7pi/6 and 11pi/6?
Wednesday, May 13, 2015 at 2:09am

Math
The number of sequence is 17 ,the second is 3.what is the first number?
Wednesday, May 13, 2015 at 1:54am

math
If 24 students in a class of 30 students were present what percent of the students were absent
Wednesday, May 13, 2015 at 1:08am

grade 5 math
a great white loses teeth and grows new teeth if a shark lost 240 of its 3,000 teeth in one year what percent of teeth did it lose? Pls help !,!
Wednesday, May 13, 2015 at 12:53am

Math
Ob a multiple choice exam with 25 questions , the instructor scored the exams as follows: 4 points for each correct answer. What was the score of a student who had 14 correct answers , 3 blank answers, and 8 wrong answers?
Wednesday, May 13, 2015 at 12:44am

Math
What is the rate of interest charged if a 9 month loan of $1200 is paid off with with $1312.50?
Wednesday, May 13, 2015 at 12:41am

Math
The sum of three consecutive odd numbers is 615? Find the numbers.
Wednesday, May 13, 2015 at 12:38am

Math
An auto dealer paid $ 4195.25 for a large order of special parts. This was not the original price. The amount paid reflects a 3% discount off the original price because the dealer paid cash. What was the original price of the parts?
Wednesday, May 13, 2015 at 12:37am

math
A car saleswoman earns a commission of 12% on each car she sells. How much money did she make the dealership in car sales the month she recieved $19,200 in commission?
Wednesday, May 13, 2015 at 12:33am

college math
each individual letter of the word Tallahassee is placed on a piece of paper and all 11 pieces of paper are placed in a hat. If one letter is selected at random from the hat, determine the probability that the letter T or E is selected.
Wednesday, May 13, 2015 at 12:12am

math
a cone has a height of 10 cm and a volume of 350 cm. what is the radius of the cone?
Wednesday, May 13, 2015 at 12:05am

Math
Twice the square of a positive number increased by three times the number is 14. Find the number.
Tuesday, May 12, 2015 at 11:40pm

Math
What is cos 2theta for sin theta = -2/13 in 180 degs < theta < 270 degs?
Tuesday, May 12, 2015 at 11:33pm

Math
Consider the following equation: A=(s+1)^2. This equation can also be written as ____.
Tuesday, May 12, 2015 at 11:18pm

Math
twice the square of a positive number increased by three times the number is 14. find the number
Tuesday, May 12, 2015 at 11:16pm

Electronics, Physics, Math
5. A circuit is supplied with 30 VDC and contains three resistors connected in series. The value or R1 is 80Ω, the value of R2 is 1,000Ω , and the value of R3 is 4,200Ω . What is the voltage drop across R2? A. 5.68 V B. 2.14 V C. 4.61 V D. 6.82 V I keep coming ...
Tuesday, May 12, 2015 at 10:51pm

math
A farmer is installing a fence. The coordinates of the vertices of the fence are A(2,2), B(2,6), C(8,6), D(8,2). If each grid square has length of 9 yards, how much wire is needed for the fence?
Tuesday, May 12, 2015 at 10:40pm

Math
How would you factor (x+y)^2-(x-y)^2
Tuesday, May 12, 2015 at 10:00pm

math
there are 3 pizzas .each child will get 1/4 of a pizza.how many children will get pizza?
Tuesday, May 12, 2015 at 9:11pm

Math
Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. Can the highway be finished in 8 months? 6 1/2 months have already passed by and so far they have 36 2/5 miles complete. Thanks! My friend and I are ...
Tuesday, May 12, 2015 at 9:10pm

math
IN a geometric sequence the 5th term is 60 and the first five terms are 783/2. What is the sum of the first 10 terms.
Tuesday, May 12, 2015 at 9:07pm

Math
Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. 6Can the highway be finished in 8 months?
Tuesday, May 12, 2015 at 9:06pm

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