Saturday

August 29, 2015
**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.*

**math**

Monday -4 degrees Fahrenheit increase 6 degrees. On Tuesday it increased 2 degrees. For the next 7 days it increased. What is the temperature on the 9th day?
*Friday, May 15, 2015 by tanisha*

**math**

Andy averages 17 points per game during 5 games of the basketball season. If he scored 12, 24, 20, 18 in four of the games. How many points did he score in the 5th game. 17 * 5 = 85 12 +24 +20 +18 +x = 74 85-74 = 11
*Friday, May 15, 2015 by tanisha*

**Math**

Ethan had $8 more than Dakota. Ethan then gave 1/4 of his money to Dakota. The ratio of money Ethan had to the money Dakota had then became 5:7. How much money did Ethan give to Dakota?
*Friday, May 15, 2015 by Sam*

**math**

Please help iv been stuck on these for two days! 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 ...
*Friday, May 15, 2015 by anonymous*

**Math**

Prove the identities: (sin^2x-1)^2 = cos(2x)+sin^4x
*Friday, May 15, 2015 by Michael*

**Math.**

4^4/4^6 (btw these are called polynomials A. -16 B. 16 C. 1/16 D. -1/16 I understand how to work with polynomials, but I've never seen a question like this. I feel like it's A. Can someone please explain how I would do this
*Friday, May 15, 2015 by anonymous*

**math**

a-5 digit number has 7 in its tens place.The digit in ones place is 5 less than its digit at tens place.The hundreds place digit is 4 times the digit at ones place.The digit at thousands place is the same as hundreds place.Guess the digit at ten thousands place if the sum of ...
*Friday, May 15, 2015 by Anonymous*

**Math**

A ladder 12 m long is propped up against a building at an angle of 15°. How far up the wall does the ladder go?
*Friday, May 15, 2015 by Jen.*

**math**

A brownie cake recipe requires 2 1/2 cup of sugar. The amount of flour needed is 1/2 cup more than twice the amount of sugar. How much flour is required?
*Thursday, May 14, 2015 by ed*

**math**

Multiply the following polynomials. 1. -2r(8r+5) A. -16r^2+5 B. -16r^2+10 C. -16r^2-10r D. -16r^2-10 2. 2a(a^2+4a) A. 2a^2+6a^2 B. 2a^3+8a^2 C. 2a+6a D. 2a^3+6a^2 3. (3y)(3y-2) A. 9y^2-6 B. 9y^2+5y C. 9y^2+1 D. 9y^2-6y 1.B 2.A 3.B
*Thursday, May 14, 2015 by anon*