Monday
July 6, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math Help!!!
How many 3 letter sequences can be formed if the first letter must always be a consonant (not a, e, i, o, u), the second letter must always be a vowel (a,e,i,o,u) and 3rd letter must be different from the first. A. 2100 B. 4056 C. 3250 D. 2625 I chose A... i guessed
Monday, May 18, 2015 by tanisha

Math Help!!!
How many ways are there to choose a potato and two green vegetables from a choice of three potatoes and seven green vegetables? A. 126 B. 63 C. 21 D. 252 i chose A. But im 50% not sure Please help test tomorrow something similar
Monday, May 18, 2015 by tanisha

Math
i can't figure this out if someone could please help me that would be great. x3 " 3y for x = 4, y = -4 is it 0 ? 3*4=12 and 3*-4=-12= 0
Monday, May 18, 2015 by Carol

math Help!!!!
You have 1 red marble, 1 blue marble, 1 yellow marble and 1 white marble. You draw 2 marbled out of the bag without replacing. What is the probability that you may choose 1 red marble?
Monday, May 18, 2015 by tanisha

math...Please help!!!!
This is a standard deviation question. I don't know much about standard deviation. Here it goes... Teachers making 30,000 to $60,000 the union is considering a $1,000 pay raise. A. Will the standard deviation change and the mean and the median stay the same? B. Will the ...
Monday, May 18, 2015 by tanisha

HELP!! MATH!
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. 1. What is the probability of selecting a purple marble and then a white marble? 2. What is the probability of selecting ...
Monday, May 18, 2015 by Anon101

Math HELP! Ms.Sue
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. 1. What is the probability of selecting a purple marble and then a white marble? 2. What is the probability of selecting ...
Monday, May 18, 2015 by Anon101

Math
Problem is: 58,000.000 KM being converted to light-years I did 58,000,000 x 365 x 24 x 60 x 60 and came up with 0.0000006131 and converted that to 6 x 10 to the negative 6. My teacher says it should have been 6 x 10 to the negative 5? Could you explain where I went wrong? ...
Monday, May 18, 2015 by Kyle

math
Multiply and write it in scientific notation. (8*10^3)*(7*10^5) A.5.6*10^16 B.5.6*10^9 C.1.5*10^16 D.1.5*10^9 Is the answer A? I really don't know how to do scientific notation😱
Monday, May 18, 2015 by aloha

math
In this question do I add, subtract, or multiply the exponents? 100^12 ------ 100^8 A.100^96 B.100^4 C.100^20 Thank you
Monday, May 18, 2015 by kalie

math help please
f^2*f^3 Do I add the exponents or multiply? Thank you. would it be f^5 or f^6?
Monday, May 18, 2015 by aloha

math
In the expression-5-4x^2+9, what is the coefficient of x? A.-4 B.-5 C.5 D.9 Is the answer B?? Thanks
Monday, May 18, 2015 by kalie

Math Please Check
Please check my answers! Thank you! Simplify the following expressions. Collapse “x” terms, and/or simplify fractions and exponents. 1.) (12/5) / (36/20) = 4/3 2.) x^13*x^3 = x^16 3.) x^4 / (x^2)^3 = 1/x^2 4.) x^-3 / x^2 = x^-5 5.) (x^2-8x+16) / (x-4) = x-4 6.) x^(-1...
Monday, May 18, 2015 by Erin

Math
Remove the xy-term by rotation of axes, reduce the resulting equation to standard form and trace the curve on the new axes: 16x^2-24xy+9y^2-60x-80y+100=0
Monday, May 18, 2015 by Ruby

Math
Remove the xy-term by rotation of axes, reduce the resulting equation to standard form and trace the curve on the new axes: 13x^2-10xy+13y^2=72
Monday, May 18, 2015 by Ally

math
The range in a frequency distribution is 22. If the lowest value is 3, what is the highest value?
Monday, May 18, 2015 by Reannon

Math
x^-1/2(x+3)^1/2+X^1/2(X+3)^-1/2 x^-1/2/(X+3)/2 +X/2(1/2(X+3))
Monday, May 18, 2015 by Deborah

grade (5) math
Design a rectangular dog pen that has the greatest possible area and keep within a budget of $50. Your pen needs at least one gate for your dog. Fencing is $1.00 per foot, fence posts are $2.00 each, and gates(3 feet wide) are $5.00 each. What is the area of a pen? pls help me!!!
Monday, May 18, 2015 by ary

math
Mary wants to build a fence in the yard to keep her dog from running away. She only has 60 feet of fencing. If she wants to create a rectangular space that has a length that is twice as long as the width. How long is each side of the rectangular space?
Sunday, May 17, 2015 by sasha

Math
Voting In a survey of 350 registered voters in belair,123 said that they would vote for the democratic candidate for mayor. if registered voter is selected at random, what is the probability that this person will vote for the democratic candidate.
Sunday, May 17, 2015 by Daine

Math
Could someone show me the formula to convert KM to Light-Years? Thanks for any help you can give me.
Sunday, May 17, 2015 by Kyle

Math
The Oregon Trail was 1930 miles long. Imagine that a car could travel on that exact trail at a consistent rate of 50 mph. How many hours would it take?
Sunday, May 17, 2015 by Amari

Math
Determine whether the infinite geometric series converges. If so, find the sum 1/4+1/16+1/64+1/256....
Sunday, May 17, 2015 by Sharen

math
A restaurant offers a 13% discount on chicken wings on Mondays. If Travis eats $7.95 worth of chicken wings on Friday, how much would those wings cost on Monday?
Sunday, May 17, 2015 by victoria

Math!!! Please help!!!
Find the coefficient of x^7 for (x-3)^11 Use the binomial theorem to expand (2y-3x)^5 Prove that (n over r)= (n over n-r) for all integers where n is greater than or equal to r and r is greater than or equal to zero Prove that (n over n-2) + ( n+1 over n-1)= n^2 for all ...
Sunday, May 17, 2015 by Sally

math
. A jacket costs $94.95. It is on sale for 30% off. Estimate the sale price.
Sunday, May 17, 2015 by Natalie

Math
A cable is 32 feet 10 1/2 inches long is to be cut into 8 1/2 inches lengths. Allow 1/16 inch for each saw cut.
Sunday, May 17, 2015 by Richard

math
. Estimate the sales tax and final cost of a book that costs $12.95 with a sales tax of 6%.
Sunday, May 17, 2015 by Natalie

math
A real estate agent receives a 9% commission for every house sold. Suppose she sold a house for $112,000. Estimate her commission.
Sunday, May 17, 2015 by Natalie

Math
There eight girls competing in an ice=skating competition. In how many ways can they finish in first, second and third place? 366 1,680 2,016 40,320 I think it is 2,016
Sunday, May 17, 2015 by Karla

math
This math is killing me! How do I find the area of a flower bed in square feet if it is triangular in shape and the base is 3 yards and the height is 2 yards? Please help, I am feeling overwhelmed.
Sunday, May 17, 2015 by Island Grandma

Math
There were 36 flower bloomed. How many did not bloom?
Sunday, May 17, 2015 by Eab

Math
An oil company in Houston, Texas is hiring a geologist. The company interviewed 16 candidates. After the interviews, they ranked the top 5 candidates from first to 5th. How many lists can be formed?
Sunday, May 17, 2015 by Maria

math
A contest winner is given a choice of 2 prizes. Prize 1:$1 today, $2 tomorrow, $4 on day 3 and so on, for 30 days. Each day the winner recieves twice as much as the day before. Prize 2: $1 today, $3 tomorrow, $9 on day 3, and so on, for 20 days. Each day the winner recieves 3 ...
Sunday, May 17, 2015 by Yiu

math
Which expression can be used to find the area of a triangle that has a height of 7 units and a base of x units where the height stays the same but the base changes? A. 7x B. 7x/2 C. 7/2 D. x/2 I think x/2, am I correct? Please help.
Sunday, May 17, 2015 by Island Grandma

Math
Express 4.9sin(x)+4.4cos(x)in the form ksin(x+ϕ)
Sunday, May 17, 2015 by Dan

Math
Five cards are dealt from a deck of 24 cards to form a euchre hand. Is this a combination or permutation? 4 actors are chosen To play the Beatles in a film. Is this combination or permutation?
Sunday, May 17, 2015 by Maria

Math
Count the number of ways to award first place to third place to the top three groups in an engineering competition.
Sunday, May 17, 2015 by Maria

math
A contest winner is given a choice of 2 prizes. Prize 1:$1 today, $2 tomorrow, $4 on day 3 and so on, for 30 days. Each day the winner recieves twice as much as the day before. Prize 2: $1 today, $3 tomorrow, $9 on day 3, and so on, for 20 days. Each day the winner recieves 3 ...
Sunday, May 17, 2015 by Rose

Math
Geoff planted dahlias in his garden dahlias have bulbs that divide and reproduce underground in the first year Geoff garden produced 4 bulbs in the second year it produced 8 bulbs and in the third year it produced 16 bulbs if this pattern continues how many bulbs should Geoff ...
Sunday, May 17, 2015 by ciara

Math
Seven students are running for four junior class representative positions in the upcoming student council elections. How many different ways can the students be chosen?
Sunday, May 17, 2015 by Lucy

math for college readiness
Suppose y varies directly with x. Write an equation relating x and y. y = −30 when x = 6
Sunday, May 17, 2015 by jessica

Math (Solving Equations)
Find all solutions (answers should be given in simplified form). Some answers may involve the number i. *I will use lowercase l to represent absolute value lines.* 3 lx-1l + 4 = 19 We've never really worked with absolute value in solving equations before. Do I distribute ...
Sunday, May 17, 2015 by Leah

Math (Solving Equations)
Find all solutions (answers should be given in simplified form). Some answers may involve the number i. (x^2/6) - (2x/3) = 3 + (x/2) I turned (2x/3) into (4x/6) and subtracted it from (x^2/6) to get: x(x-4) / 6 I turned 3 into 6/2 and added it to (x/2) to get: (x+6) / 2 So ...
Sunday, May 17, 2015 by Leah

Math
How many posts will be needed if the fence has 47 sections
Sunday, May 17, 2015 by Serenity

math
If Brian wants to split the 3 3/5 cups of chocolate syrup that he has into separate containers that each hold 3/10 of a cup, how many containers will he need?
Sunday, May 17, 2015 by Anonymous

Math
A shaded circle has a diameter of 12 feet. Within the circle, is another white circle with a radius of 2 feet. What is the area of the shaded circle.
Sunday, May 17, 2015 by Elaine

math
Jaime mixes purple paint. She uses three pints of blue paint for every four pints of red paint. Jaime wants to mix more paint exactly the same color. She has 14 pints of red paint. How much blue paint does she need?
Sunday, May 17, 2015 by eab

Math
If you subtract twelve from twice a number, the result is eight. What is the number?
Sunday, May 17, 2015 by Beth

math
The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16. Find S20
Sunday, May 17, 2015 by Yiu

math
The areas of two similar triangles are 144cm square and 81cm square. If one side of the first triangle is 6cm, what is the length of the corresponding side of the second?
Sunday, May 17, 2015 by tarekegn

math
find the perimeter and area of asegment of acircle of radius 8cm, cut off by achord that subtends acentral angle of: A,120 B,3/4 paiy radians
Sunday, May 17, 2015 by tarekegn

math
Aglass cylinder with aradius of 7cm has water up to aheight of 9cm. Ametal cube of 5.5cm edge is immersed in it completely. Calculate the height by which the water rises in the cylinder.
Sunday, May 17, 2015 by tarekegn

Math
A shaded rectangle is 4ft by 6ft. Within the rectangle is another white rectangle 2 ft by 1 1/2 ft . What is the area of the rectangle that is not white?
Sunday, May 17, 2015 by Parker

Math
A court is 94ft long by 50ft wide. It has 3 circles each 12ft diameter. Two of the circles are at the free throw line and the third is at the center of the court. Within the 3rd circle is another circle with a radius of 2ft.The key is rectangular region on the court from the ...
Sunday, May 17, 2015 by Kimberly

Math
What is “a, b and c” in this hyperbola? (y-2)^2/5-(x-3)^2/6=1
Saturday, May 16, 2015 by Heather

Math
The key is the rectangle region on the basketball court from the free throw line to the backboard. The backboard is 4 feet from the baseline. The key is 12 feet by 19 feet with a composite circle as the free throw line. Is the key similar to the basketball court? Is the inner ...
Saturday, May 16, 2015 by J.J.

Math
Jerome claims he can find the area of the composite shape shown by inscribing it in a rectangle and subtracting. Kelly claims that to find the area you need to use addition. Who is correct? Justify your answer.The picture looks like a 2 sided pointed pencil with 6 sides. The ...
Saturday, May 16, 2015 by Ann

Math
The rim of the basket has a radius of 9 inches. What is the approximate circumference of the basket? Use pi equals 3.14. Explain why 3.14 is used when finding the circumference of a circles.
Saturday, May 16, 2015 by Kimmy

MATH
WRITE A WORD PROBLEM FOR THE EQUATION 12N-45=504.
Saturday, May 16, 2015 by L

MATH
TO MIX A PUNCH, LINDSAY BEGINS WITH 3 LITERS OF LEMON-LIME SODA AND ADDS 1,893 MILLILITERS OF CRANBERRY JUICE. HOW MANY 250 ML GLASSES OF PUNCH CAN BE SERVED. ROUND TO THE NEAREST TEN.
Saturday, May 16, 2015 by LIN

MATH
TO MIX A PUNCH, LINDSAY BEGIN WITH LITERS OF LEMON-LIME SODA AND ADD 1,893 MILLILITERS OF CRANBERRY JUICE. HOW MANY LITERS ARE IN THE PUNCH BOWL WHEN THE PUNCH IS COMPLETED.
Saturday, May 16, 2015 by EDDIE

math
HOMEOWNERS IN UNITED STATES USE MORE THAN 15 MILLION POUNDS OF PESTICIDES ON THEIR LAWNS EVERY YEAR. CONVERT THIS RATE TO OUNCES PER DAY ROUNDED TO THE NEAREST WHOLE NUMBER.
Saturday, May 16, 2015 by Edward

math
a man holds a note of $6,000 that has an interest rate of 13% annually the note was made on march 17 and is due november 11 he sells the note to a bank on june 14 at a discount rate of 12% annually find the proceeds on the third-party discount rate. Ok now I m a little confused
Saturday, May 16, 2015 by A

math
People in the United States throw away 2.5 million plastic bottles per hour. How many bottles per year are thrown away.
Saturday, May 16, 2015 by linda

math
A man makes a simple discount note with a face value of $2,200, a term of 140 days, and a 9% discount rate. Find the discount.
Saturday, May 16, 2015 by A

math
I borrowed $10,000 on a 120-day note that required ordinary interest at 12.19% I paid $5,000 on the note on the 60th day how much interest did I save by making the partial payment
Saturday, May 16, 2015 by A

math
find the adjusted balance due at maturaty for 90 day note of $12,000 at 13.1% ordinary interest if a partial payment of $60,000is made o\n the 60th day of the loan
Saturday, May 16, 2015 by A

math
The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16? Find S20
Saturday, May 16, 2015 by Yiu

Math
How can i Describe how the products of the light phase of photosynthesis are used to form a glucose molecule and how this molecule is broken down in the cell of a plant to release energy. Thanks in advance
Saturday, May 16, 2015 by Jonase

Math
The cost of one swimming lesson for various numbers of students is given in the table below. How much would each student have to pay for a swimming lesson in a group of 6 students? # of students Total Cost 1 $40.00 2 $50.00 3 $60.00 4 $70.00 I think the answer is total $90.00 ...
Saturday, May 16, 2015 by Kyle

math
The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16? Find S20
Saturday, May 16, 2015 by rose

Math
I need help correcting my math homework. I have been out sick and was told that I have to have it done by monday and I missed alot. I don't know how to do this. It's surface areas and volume and solids and triangle and prisms.
Saturday, May 16, 2015 by Asa

math
find the marturity value of the loan of $2,300.00 after three years. the loan carries a simple interest rate of 7.3% per year. I came up with $503.70 but not sure if thats right
Saturday, May 16, 2015 by A

math
find the interest paid on a loan $2,200 for three years at a simple interest rate of 9% per year what is the interest on the loan
Saturday, May 16, 2015 by A

Math
What is “a, b and c” in this ellipse? x^2/9+y^2/4=1
Saturday, May 16, 2015 by Heather

math
is the area of ANY triangle 1/2 b x h ?
Saturday, May 16, 2015 by mariah

math
125 e^(8sin2t) differentiation
Saturday, May 16, 2015 by gkfg

Math natural logarithms
The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r^(1−γ) , where γ is a constant. Find γ for e = 0.55 and r = 7.5
Saturday, May 16, 2015 by barry

Math
The vertical backboard located 4ft from the baseline supports the rim of the basketball net. The backboard measures 6ft wide by 4ft high. The shooter's square is a white box above the rim of the basket. It must measure 1 1/2 ft high and 2ft wide. What is the area of the ...
Friday, May 15, 2015 by Robert

Math
A court is 94ft long by 50ft wide.It contains 3 circles, each with a diameter of 12 ft. Two of the circles are located at the free throw line with "half of each circle shaded" and the third circle is at the center. Within the third shaded circle is another circle (...
Friday, May 15, 2015 by Parker

math
A sphere has a volume of 36π cubic meters. The rate of change in volume is 9π cubic meters per minute. Find the rate of change in area of the sphere
Friday, May 15, 2015 by Anonymous

math
what is the SURFACE area of a triangular pyramid with the following measurements 3x3x3? Thank you.
Friday, May 15, 2015 by erynn

Math
The key is the rectangle region on the basketball court from the free throw line to the backboard. The backboard is 4 feet from the baseline. Is the key similar to the basketball court? Explain. Is the inner circle similar to the entire circle in the center of the court? ...
Friday, May 15, 2015 by J. J.

MATH
HI. THE REGION INCLUDING THE CIRCLE AT THE FREE-THROW LINE TO THE BASELINE IS GIVEN. FIND THE AREA OF THE REGION. USE PI AS 3.14. IN THE PICTURE GIVEN, ITS 12 FEET BY 19 FEET RECTANGLE WITH A CIRCLE INTERSECTION AS A FREE-THROWN LINE.
Friday, May 15, 2015 by KIMBER

math
what is the area of a triangular pyramid with the following measurements 3x3x3? Thank you.
Friday, May 15, 2015 by erynn

math
The apothem of a regular polygon is the distance from the center to any side. If the length of the apothem remains constant at 10 inches, the formula for the perimeter of a regular polygon as a function of the number of sides is ( ) ( )( ). As the regular polygon changes from ...
Friday, May 15, 2015 by Anonymous

Math
Whenever w is an integer greater than 1, log(w) w^2 / w^6 =? F. -4 G. -3 H. -1 / 3 J. 1 / 3 K. 3
Friday, May 15, 2015 by Anonymous

math
**Problem 3: Create a linear function (y=mx+b) and graph the line for the following set of data. x | y 2 | 1 4 | 2 6 | 3 First, use the slope formula to find slope: (y2-y1)/(x2-x1) Then, put the slope (m), a 'y' point, and matching 'x' point into the formula y=...
Friday, May 15, 2015 by kelly

Math- probability
In a city, every day is either cloudy or sunny (not both). If it's sunny on any given day, then the probability that the next day will be sunny is 3/4. If it's cloudy on any given day, then the probability that the next day will be cloudy is 2/3. a) In the long run, ...
Friday, May 15, 2015 by Anonymous

Math
What is the eccentricity for this ellipse? x^2/9+y^2/4=1
Friday, May 15, 2015 by Raina

Math
The mean of 4 numbers is 32. The smallest of the 4 numbers is 5. What is the mean of the other 3 numbers? F. 30 3 / 4 G. 32 H. 36 J. 41 K. 42 2 / 3
Friday, May 15, 2015 by Anonymous

Math Check
Hi! Can someone check my answer for this question? Thanks! Question: List the following circles in order based of their radius. List them from smallest to largest. A.) x^2+y^2-6x+8y-9=0 B.) (x-3)^2=9-(y+4)^2 C.) (y+4)^2=3-(x-3)^2 D.) (x-3)^2+(y+4)^2=1 My answers: d,b,c,a
Friday, May 15, 2015 by Susie

Math
Finish the following to make a perfect square. 1.) x^2+sqrt3x+______ 2.) x^2+4x+_____
Friday, May 15, 2015 by Kate

Math
Gina is tying up a stack of newspapers with string. She wants the string to wrap around twice, once lengthwise and once crosswise. If the stack of newspapers is 11 inches wide, 13 inches long, and 15 inches high, how much string will she need?
Friday, May 15, 2015 by Laura

Math
The volume of a rectangular solid with a length of 6in., width 8in., and height 13in.
Friday, May 15, 2015 by Missy K.

math
5 kids median age is 9. Two of the kids ages are 5. The range of all the kids is 7. What is the age of the 2nd to the oldest. Please help....! a. 5 b. 7 c. 9 d. 12 to figure it out, i tried this 1. 12 2. 11 3. 9 4. 5 5. 5
Friday, May 15, 2015 by tanisha

Math
The length of the hypotenuse of a rigth triangle with sides of 6mm and 8mm?
Friday, May 15, 2015 by Missy K.

math
What is the shape of a linear function on a coordinate plane. choices are: a. circle b. ellipse c. vertical d. horizontal I chose "D"
Friday, May 15, 2015 by tanisha

Math
What is the area of an isosceles right triangle wih equal sides that measure 42cm? @Ms. Sue please help!!!
Friday, May 15, 2015 by Missy K.

  1. Pages:
  2. <<Prev
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. Next>>

Members