# Math

## Recent Questions

**math**

what did they say about the man who drank shellac?

**Math**

Find the equation of the line that has the same slope as the line through points (0,4) and (-5,7). But goes through point (-6,4) I don't get how to find the equation of the line

**Math**

How to rearrange the given equation for A: [ln(Ao/A)=k*t] * means multiply / means divide ln is the natural log function

**math**

A roll of paper towels has a radius of 12 cm and a height of 18 cm. the cardboard tube in the centre has a radius of 5cm. Find the volume of the paper towels So would I do 18-12?

**Math**

A contractor is building a rectangular walkway 3 1/3ft wide by 35ft long using square cement pavers. Each paver has an area if 4/9ft^2. What is the least number of pavers he needs to make the walkway? Can someone explain?

**math**

the product of a number and 7 is at least 28. write and solve the inequality.

**Math**

Tetras cost $3.99 each. You can spend at most $25. How many tetras can you buy for your aquarium? Can someone explain please?

**Math/Chemistry**

How to rearrange the given equation for A: ln (Ao/A) = k*t

**Math/Chemistry**

How to rearrange the given equation for Ao: ln (Ao/A) = k*t

**Math ASAP**

In a survey, one out of three people named blue as their favorite color. Two out of seven named red. If 1,092 people were included in the survey, how many named neither blue nor red as their favorite color? A. 416 people B. 432 people C. 540 people D. 512 people

**Math**

Find equation of the line that goes through (11,5) with slope m= 2/7

**Math**

Find th equation of the line that goes through (3,8) and (5,-8) I got X = 3 But it doesn't seem right

**Math**

By letting x=5^y, show that the equation p5^y + 5^-y = 5 can also be written as px^2-5x+1 = 0

**math**

What is the order of 1.1 × 10, 1.2 × 10−, 1.7 × 10−, and 1 × 10 from least to greatest?

**Math**

You are throwing darts at a dart board. You have a 1/6 chance of striking the bull's-eye each time you throw. If you throw 3 times, what is the probability that you will strike the bull's-eye all 3 times?

**Math help FAST**

I need you guys to check my answers, please. I need an A so bad, all help is appreciated, thanks. Also, I can't put links :( 1.Lucy drew an isosceles triangle as shown If the measure of YZX is 25Â° what is the measure of XYZ? 50Â° 75Â° 130Â°*** 310Â° 2.The ...

**Math**

Your goal is to take at least 10000 steps per day. According to your pedometer, you have walked 5274 steps. Write and solve the inequality to find the possible numbers of steps you can to reach your goal. Can someone explain how to do this?

**math HELP PLEASE**

write a ratio and percent for the shaded area

**Math**

The revenue from the sale of a product is, in dollars, R = 1500x + 3000(2x + 3)^−1 − 1000 where x is the number of units sold. Find the marginal revenue when 150 units are sold. (Round your answer to two decimal places.)

**Math**

if 14 out of 20 people like hot chocolate milk what percent of the people do not like chocolate milk

**Math**

Jackson made a poster in the shape of a quadrilateral. Each pair of opposite sides of the poster are congruent and parallel. Which of the following names best describes the shape of Jackson’s poster? square rhombus rectangle** trapezoid please help fast!

**math**

a plot of land is bought for $40000 and is appreciated by 7% each year what is the value of the land after a period of two years

**Math**

If anyone wants to know whta the answer to this question is the new here it is an air plane travels 226 miles in 2 hours. At that rate how far will the airplane plan travel in 8 hours. 904 is the answer

**math**

If g(x)=x+3 h(x)=9-x^2, what is the maximum of h(g(x))?

**Math**

If cscØ = 4/3, find sinØ + sinØ cot^2 Ø

**MATH**

the empire state building in new york is 1250 feet tall it has 103 floors rounded to the nearest whole what is the height of each floor?

**Math**

Find the fifth term in the expansion of (4-1/5x)^9 in ascending powers of x

**math**

A raffle contains 200 tickets, two of this 200 tickets are the 1st and 2nd price, if i were to buy 5 tickets, what is my probability of winning 1st price? and what would be my probability of winning both 1st and 2nd price? Im thinking the answer to winning 1st prize is 5/200, ...

**Math**

Aaron and ron are brothers. four years later,ron will be twice as old as aaron. Find their present ages

**Math**

With the 20% off coupon, Alexis received a discount of $15 on her shoes. What was the regular price of her shoes before the 20% off coupon was applied? Justify your answer using equations, models, and/or words to explain your mathematical reasoning.

**Math**

Thehe sum of the ages of Dorothy and Darlene is 41. In 5 years, Dorothy will be twice as old as Darlene. Find their ages 3 years ago.

**Math**

Thehe sum of the ages of Dorothy and Darlene is 41. In 5 years, Dorothy will be twice as old as Darlene. Find their ages 3 years ago.

**Aice Math**

The binomial expansion of (5-x/2)^6 is 15625 + px+qx^2+... Find the value of "p" and the value of "q"

**Math**

In the expansion of (x^2-b/x)^4, the coefficient of x^2 is 294. Find the value of the constant "b"

**Math**

The simple interest on a sum of money is 1/9 of the sum.The number of years is numerically equal to the rate percent per annum. The rate percent per annum is?

**Math derivatives**

Develop a rule for the following: Dx[f(x)g(x)/h(x)]

**Math - Derivatives**

Find all points on the graph of y=1/4x^4+2/3x^3-5/2x^2+6x+7 where the slop of the tangent lins is 12.

**Math**

The total cost of producting x radio sets per day is (1/4x^2 + 35x + 25) dollars. The price per set at which they may be sold is ( 50 -1/2x) dollars. What should be the daily output be to obtain the maximum profit? Help!!!

**Math**

Write 13/14 as a percent. Write the remainder in fractional form. I know that 13/14 as a decimal would be 92.857143 and as a percent around 92.86% my question is what would the remainder be and how to write it in fractional form?

**Math**

The wood framing for an art canvas costs $4.84 per foot. How much would the wood framing cost for a rectangle picture that measures 4 ft by 6 ft?

**Math**

The perimeter of the parallelogram is 102 feet. Find m. Write your answer as a decimal or mixed number. The top is 3m. the side is m.so would the top & bottom would be 6m and the sides would be 1m each which would make the answer m=8

**Math**

For every quart of lemonade jackie makes she adds 2 lemons how many quarts of lemonade did jackie make if she used 12 lemons

**Math**

Use digits 0 through 9, without using a digit more than once, so that you can make the following reduce to a solution of x < -1/2 How do I do this? Please help, I am confused.

**math**

in triangle ABC angle B =90 and BD PERPENDICULAR AC proof that angle ABD =angle ACB

**Math**

For the following questions the US population in 2008 was 304 million. Round each answer to the nearest 10th of a million. How big was the Labor Force in November 2008? What was the size of the Labor force in the previous month? What was the size of the labor in year before?

**Math**

For the following questions the US population in 2008 was 04 million. Round each answer to the nearest 10th of a million. How big was the Labor Force in November 2008? What was the size of the Labor force in the previous month? What was the size of the labor in year before?

**Math**

Miss has three times as many markers and colored pencils the total number of markers and colored pencils is 84 how many workers does Miss have

**Math**

If you have a line intersecting at (3,6). What equation would represent both lines?

**math**

Simon owns a small car wash and detailing center. He charges $12 per wash. He pays each of his two employees $12 per hour. The employees each work 40 hours per week. Simon's other costs amount to $450 per week. Simon wants to earn an average profit of at least $3.25 per wash ...

**math**

Without using a calculator, choose (a) the larger of cos 40 and cos 50; (b) the larger of sin 40 and sin 50. Be prepared to explain your reasoning.

**Math**

The volume of seed in a bird feeder is represented by the equation V = 12(24-h) Q: Make a table of ordered pairs (h,V)

**math**

A car travels at a constant speed of 56 miles per hour. How far will it travel in 45 minutes and 45 seconds?

**Math**

you lave a line intersecting at (3,6) what would represent the two lines?

**Math**

A flagpole casts a shadow 17 m long. The angle of elevation from the tip of the shadow to the top of the flagpole is 58 . How high is the flagpole to the nearest decimal?

**Math (calc)**

An open box with a square base is to have a volume of 12ft^3. Find the box dimensions that minimize the amount of material used. (round to two decimal places). it asks for the side length and the height. Please help asap due in a few hours. Thank you

**Math 8th grade**

How would I set up this problem to solve it: Gene offers 30 mins. and 60 mins. driving lessons. He gave 8 lessons that lasted 7 hours. How many 60 minute lessons did he give?

**Math**

Travis is 19 years older than his sister Linda. In 4 years, he will be twice as old as Linda. How old is each of them now?

**math**

Suppose the amount of algae in pond triples every day. After 12 days the pond is complete with algae. I believe that on day 4 the pond is 1/3 of the way full. Am i correct?

**Math@@**

How do I solve v + 17 -11= 65

**math**

Fred has 3 times as many dimes as quarters. How many dimes does he have if the value of all the coins is $3.85?

**Math**

whats 9+10?

**Math**

The length of a rectangle is 1 m more than twice its width. What is the length of the rectangle if its perimeter is 110m?

**Math**

How do you solve -1-2 over 1/2

**Math**

Rewrite the numbers in order from least to greatest. 0.3, 0.102, 0.127, 0.2, 5/7 0.102, 0.127, 0.2, 0.3, 5/7

**Math Velocity**

Jeff is standing on a bridge 5M above the river, He picks up a small rock and tosses it into the air, the rock reaches a height of 12M in one second and hits the water in about 2.3 seconds Determine when the rock reaches a height equal to the bridge but on the way down.

**Math**

Which shapes have more than one line of symmetry? Explain your thinking

**math**

walk 1 mile to house and 1/2 mile to school how far you walk altogether

**Math**

Fill in missing sign to make equation true 160 ----60------4------3=115 125----5-----12-----2= 1

**4th grade math**

Bebo wants 6/10 of floor tiles to be red. If she uses 18 red tiles, how many square tiles will be used to cover the floor. Show an area model

**math, concepts of geomtry**

One side of a square room measures 24 ft. how many square yards of carpet are necessary to carpet the room? 1yd^2=9ft^2

**math**

In a class of 80 students,53 study Art,60 study biology,36 study art and biology,34 study art and chemistry,6 study biology and 18 study biology but not chemistry.Determine the number of students who study =Art only =Chemistry only

**Math**

Determine a,b and c so that curve y= ax^3 + bx^2 + cx will have a slope of 4 at its point of inflection (-1,-5) Help please!

**mATH**

YOU DEPOSIT $520.00 IN AN ACCOUNT WITH 4% INTEREST COMPOUNDED MONTHLY WHAT IS THE BALANCE IN THE ACCOUNT AFTER 5 YEARS 520 X 1 + 0.04/12^60 IS THIS RIGHT WAY TO DO THIS

**math**

6 scarves are black, 2 scarves are red, and 2 scarves are white. it is dark and sarah reaches into the drawer and chooses a scarf. what is the probability of a scarf being white in percentage form?

**Math**

Chris wants to build a fence around his square garden. The garden measures 6 feet on each side. How many fencing material does he need?

**Math**

Frank wants to put up a fence around a rectangular garden. The garden measures 12 feet by 10 feet. How much fencing material does he need?

**Math**

There are 8 students who have 3/4 of a cake they want to share. How much of the cake will each student eat if that split it evenly

**math**

Use Simpson's Rule and all the data in the following table to estimate the value of the integral (with 7 at the bottom, 13 at the top) ydx. x 7 8 9 10 11 12 13 y -5 -2 6 7 8 0 -4

**math**

What is the y-coordinate of the solution of the system of equations? y=2x+14 −4x−y=4 Enter your answer in the box. y = ?

**Math**

Determine a,b and c so that curve y= ax^3 + bx^2 + cx will have a slope of 4 at its point of inflection (-1,-5) Help please!

**Math Independent & Dependent.**

Hey! I am a Connexus user. I was wondering if anyone could help me on this question because I can't seem to understand independent and dependent variables for some reason. I've tried everything like asking my teacher, doing examples myself, reading from other articles, etc. So...

**Math**

(w^-2j^-4) ^-3 (f^7 f^3) simply using positive exponents I think I double of the the threes and add. Little confused

**Math**

How is combing radicals by addition and subtraction similar to combining monomial expressions by addition and subtraction? Please use examples.

**Math**

5/8 of the students in my class were boys. When 6 girls joined the class, the number of boys equaled the number of girls. How many students were in my class then?

**Ms. Sue! Math**

Come up with a new linear function that has a slope that falls in the range -1<m<0. I don't really understand how to find this out. Can someone lead me in the right direction please?

**math**

While working on the roof of his house, John leans a 15 foot ladder against a second story window. If the distance on the ground between the base of the ladder and the house is nine feet, at what height does the ladder reach the second story window? In your final answer, ...

**Math**

Mr. Hamm's salary has increased by 250% over the past 10 years. If his original salary was $28,000 per year, what is his current salary? A) $35,000 B) $37,500 C) $70,000 D) $98,000

**math**

Please check my answers and make sure there right. Joe had a total of 8 slices of pizza he gave jack 3 slices what is the ratio of total slices to slices eaten? A. 8 to 3****** B. 3 to 8 C. 4 to 9 D. 16 to 6 Read the question above what is the fraction of pizza eaten? Type ...

**math**

find a commission on a $1,250 sale with a commission rate of 5%. $62.50 $6.25 $75.00 $125.00 HELP PLSSS

**Math**

In Joel's recipe for lemonade the ratio of lemons to water is 7 to 4. People are complaining that the lemonade is too weak. Which ratio would make the lemonade STRONGER? A) 5 to 3 B) 7 to 5 C) 8 to 4 D) 8 to 5

**Math**

In a class,12 pupils are in the band and 3/4 of the remaining pupils are in the modern dance club. If 1/5 of the class are in neither the band nor the club,how many pupils are there in the class?

**math**

The difference and Diameter of a circle is 120cm. The area of that circle in squares meters is

**Math**

For every 8 squirrels that Travis sees in his backyard, six are dining at the bird feeder. Travis saw 28 squirrels today. About how many were eating birdseed? A) 16 B) 20 C) 21 D)24 Thank you so much!

**math**

Give possible values for length and breadth of the rectangle whose area is -x square+7x+30

**Math**

A cone is formed from a sector of a circular of radius 9cm which sustained an angel 120 find (a) the radius of the cone formed (b) the curved surface area of the cone (c) the total surface (d) volume

**Math interest**

How long will it take for an investment of $5000 to double if it is invested at 5% p.a. simple interest? Been stuck on this and need help thanks

**Math**

There are 90 kids that attend Harlem High School. If 40 are in Mrs. Fetter's class, and 20 are in Mrs. Cassy's class, what percent make up the last classroom?

**Math**

Rewrite the expression using the distributive property 1/2(4x+2)+8x. Do I take the 1/2(4x) = 9x+5+8x is this simplify

**Math**

Determine a,b and c so that curve y= ax^3 + bx^2 + cx will have a slope of 4 at its point of inflection (-1,-5) Help please!

**MAth**

an isosceles triangle has two angles that measure 75 degrees. what is the measure of the third angle of the triangle?