# Math

## Recent Questions

**Math**

A car costs $11500 new but lost 5% of its value in the first three years. What is worth after 3 years?

**Math**

A farmer produced 8000 tonnes of grain last year. He plans to increase this by 15% next year. How many tonnes does he think he will produced?

**Math-please check**

1. Write a rule for the sequence. 8, -1, -10, -19... A. Start with 8 and add -9 repeatedly B. star with -9 and add 8 repeatedly C. start with 8 and add 9 repeatedly D. start with 8 and subtract -9 repeatedly--- 2. Find the next three terms of the sequence. -4, -8, -16, -32... ...

**math**

I need to know what is 153 divided by 1,000

**business math**

27. The athletics track shown below consists of a rectangle and two semi- circles. Inside the track there is a VIP section 20m long and 10m wide. (i) During the 4 km race Oberrt ran 8½ rounds before fainting. How many km (four decimal places) did he run? (ii) What percentage ...

**Math**

Mr. Lin baked banana bread for a bake sale to raise money for the math team. He said that he added a spoonful of walnuts for each of the students in his three classes, and that he added more than 250 walnuts. He used the inequality 16w + 24w + 10w > 250 to represent the ...

**math /science**

how do I convert 2.56m/s^2 to km/s^2

**math**

in triangle SET, ES is congruent to ET, measure angle S = 4x - 6 and measure angle T = 3x + 3. Find the measurement of angle S, angle E, and angle T

**Math**

An arc of lemgth 28cm subtends an angle at the centre of a circle. In the same circle, what angle does an arc of length 35 subtend

**math**

if a camp has food to last for 25 days but after 10 days 150 people went back from the camp now the food lasts for 30 days. Answer how many people were present at beginning

**math**

12. IF 1/SinA+1/CosA=1/SinB+1/CosB ,PROVE THAT: Cot{(A+B)/2}=TanA.TanB

**Math**

Guys i really need help and need help for some questions because i got bad scores on one of my math things so help Question 2.a family is ordering grass sod for the portion of their backyard shown in the diagram how many square yards of grass sod do they need? So guys this is ...

**math**

Triangle XYZ is reflected across the line x = 3. What is the reflection image of Y?

**math**

what is 5 plus 8 times 364 in standard form??

**Math**

There were 80 boys and 95 girls on the middle school track team last year this year the number of boys increased by 15% well the number of girls decreased by 20% was there an overall increase or decrease in the number of students on the track team calculate the overall ...

**math**

The volume of metal in a scale model of an mobile phone tower is 54 cm^3. The scale was 1:50. It required 5 ml of paint to give the model one coat. Find the volume of mental in cubic metres would be required to build the tower.

**Math**

I need someone to show me or help with the steps of this problem: Bert received a commission of $247.50. If he works for 15% commission what price of the car did he sell? Thank you in advance to whoever helps me

**Math**

The graph of an inverse trigonometric function passes through the point (1, pi/2). Which of the following could be the equation of the graph? Y=cos^-1 x Y=cot^-1 x Y=sin^-1 x Y=tan^-1 x

**Math**

I need help with the steps on how to do this following problem: Bert received a commission of $247.50. If he works for 15% commission what price of the cat did he sell?

**Math**

POOL:A diver on a spring board that is 3 meters above the surface of the pool. Another pool diver is below the surface of the pool. a. Write an integer for the position of each diver relative to surface the pool. b. Find absolute value of each integer. c. who is farther away ...

**Math**

The table shows the population of the larger U.S. cities. A. Construct a bar graph of the data. B. Describe how the population of San Diego changed from 1950 to 2000. C. Which city had the greatest percent increase from 1950 to 2000? __________________________ Population of ...

**Math**

Bob's age is 4 times greater than Susan's age. Dakota is 3 years younger than Susan. The sum of Bob's Susan's and Dakota's ages is 93 what is Susan's age

**math**

two numbers rolled can be added to get a sum. Find P(sum is even) is it 1/4 ?

**math**

Hello,I noticed my Question was deleted for some reasson i dont know why it was deleted but i decided to do another one 2.a rectangular painting has an area of 160 square inches the length of the painting is 16 inches which of the following is the width of the painting?

**Math**

This is for elementary students If you had 2 1/5 subtract 1 1/5 what would your answer be I know this answer and if you are not a elementary student don't answer this is from a fellow teacher Mrs.May

**Math**

Write a story problem that is associated with this proportion, then solve your problem. 5/$21 = 12/n

**Math**

If the largest angle in a triangle is 70o, what is least possible value of the smallest angle of the triangle? 69o 1o 40o*** 39o 41o Is the correct answer 40?

**Math**

write an equation in slope intercept form for a line containing (5,3) that is parallel to the line y+11= 1/2 (4x+6)

**Math**

Silas is going to use 5 ounces of glue and 2 ounces of detergent. What percent of his slime is detergent? A 5%** B 40% C 71.4% D 28.6% E 42.9% F 60% G 250% A bank charges 18.12% interest per year on a credit card account. Jose' closed his account and has a balance of $529.84 ...

**math plz help! urgent!**

It costs Marie $25 overhead and then an additional $1.25 to make each barrette. She charges $3.50 for each one. Write a function to model Marie's profit?

**Math**

If 3 x − y = 12 , what is the value of 8 x 2 y ? A) ** 2 12 B) 4 4 C) 8 2 D) The value cannot be determined from the information given. I believe the answer is A

**Math**

The equation above shows how temperature F , measured in degrees Fahrenheit, relates to a temperature C , measured in degrees Celsius. Based on the equation, which of the following must be true? A temperature increase of 1 degree Fahrenheit is equivalent to a temperature ...

**Math**

An examination fee is partly constant and partly varies directly as the number of subject entered. When the examination fee is 55000 three subjects are entered when that examination fee is 700, five subjects are entered. Write a law of variation and find the number of subjects...

**Math**

An examination is partly constantly as the number of subject entered. When the examination fee is 55000. Three subjects are entered when that examination fee is 700, five subjects are entered. Write a law of variation and find the number of subject if the examination fee is ...

**Math**

Draw and label all the rectangles with a perimeter of 24 units. Use only whole units. What is true about the rectangle with the greatest area?

**Math**

How do i solve x^3 (x-9) + (4x^3) don't give me the answer explain it

**Math. 4 Questions**

1. There were 80 boys and 95 girls on the middle school track team last year. This year the number of boys increased by 15%, while the number of girls decreased by 20%. Was there an overall increase or decrease in the number of students on the track team? Calculate the overall...

**Math**

Evaluate: |4 - 8(3 - 12)| - |5 - 11| =

**Math**

Ms. Sue could you give me some websites for classifying quadrilaterals and other polygons please? (NOT ASKING FOR ANSWERS!)

**Math**

When the first Harry Potter movie came out, "The Sorcerer's Stone," a local book store marked all the Harry Potter books up by 12.5%. If "The Sorcerer's Stone" paperback cost $7.37 before the movie came out, how much did it cost after the mark up? My answer is 12.5% turned ...

**Math NEED HELP**

Somebody please help me I have a quiz coming up Does anybody know the answer to Lesson 6: Mid Unit Review for the second assessment (Quiz part) ? 1. Which value correctly completes the sentence? 6,501.5 km= = _____m A. 6,501.500 B. 65,015 C. 650,150,000 D. 650.15

**Math**

1. A parking lot space is in shape of a rectangle. If the space has a length of 23 feet and a width of 12 feet, what is the area of the parking space? A.128ft2 B.266ft2 C276ft2**** D138ft2 2. Each blade on a windmill is in shape of a triangle with base of 7 feet and a height ...

**math**

2. Each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 feet. If there are four blades on the windmill, what is the total area of the blades? A.56ft2***** B.14ft2 C.28ft2 C.96ft2

**Math I need HELP please**

The radius of a cylinder is 3.5ft. The height is 14ft. Find the surface area and the volume of the cylinder to the nearest tenth of a foot. Please help

**math**

Q 31 The sum of the weights of an iron piece and of a copper piece is 1280 gm. The volume of the copper piece is twice that of the iron piece. If the weight of 1 cubic centimeter of iron is 7.8 gm and that of copper is 8.9 gm. Find the volume of each piece .

**Math**

|(-3x+9)/x^10| (Factor -3 out of the numerator first)

**Math**

the length of a cut board in a sawmill should be within 2% of the board's stated length.write an absolute value inequality that describes the length L of an acceptable board with a stated length of 12 feet.

**Math**

Marissa bought 6 fewer pints of soda than of orange juice how many cups of soda did she buy

**math**

The age of Mwenda is 3/5 of that of his sister.If 20 years ago the age of Mwenda was 2/5 that of his sister then. Find the present age of Mwend. #Please guys help me this question#

**Math**

If 3tanA.tanA-4√3TanA+3=0

**math**

unit 2 lesson 14 help please- when i found answers ill post on here

**Math**

The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi. which of the following could be the equation of the function? A) f(x)=4 cos x/2-3 B) f(x)=4 sin x/2-3 C) f(x)=4 sin 2x-3 D) f(x)=8 sin x/2-3

**MATH**

The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi. which of the following could be the equation of the function? A) f(x)=4 cos x/2-3 B) f(x)=4 sin x/2-3 C) f(x)=4 sin 2x-3 D) f(x)=8 sin x/2-3 I think...

**math**

A bus driver filled up 7/8 of her fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. The capacity of her tank is 70 gallons. How much fuel did she use for the trip?

**Math Help Me Please**

Graph the two lines 2x + 3y = 18 3x -4y > 16. Give the Domain and Range, Slope, and Y-intercept for each line. Graph each equation above on the graph below and show all work. Give the Domain and Range, Slope, and Y-intercept for each line. Explain in detail how you got each...

**math**

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

**math**

Matthew used 1/5 of a box of flour for cooking and 3/4 of the remainder to make bread. The rest of the flour was packed equally into 5 containers. What fraction of the total amount of flour was in each container?

**math**

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

**MATH HELP!!!!!!**

What would a 20% tip be on a $32.10 bill at a restaurant? Show your work. Please help me with my homework.

**math**

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

**math**

Matthew used 1/5 of a box of flour for cooking and 3/4 of the remainder to make bread. The rest of the flour was packed equally into 5 containers. What fraction of the total amount of flour was in each container?

**math**

I need help with my homework. 1) You want to buy a jacket that costs $45, it is on sale for 30% off. How much money will you save? Show your work. 1) You grab lunch with a friend and the bill is $27.00. You want to leave a 15% tip, how much will the final bill be once you add ...

**MATH**

. Everybody loves a sale! The Johnson family has been waiting for a sale to buy a trampoline. Sports King is having a sale and all items are 25% off. How much will the Johnson family save on a $300 trampoline? Solving by writing a proportion Solving by using a decimal or ...

**Math IMPORTANT**

A large pizza at Tony's Pizzeria is a circle with a 14-inch diameter. How long is the pizza?

**MATH!**

Estimate 18% of 50. Show your work. Please help me.

**MATH HELP!!!!!!**

What is 0.35 as a percent? Show your work. Please help me immediately!!!!!

**Math**

Just to clarity to simplify (1+√3) / (1-√3) to multiple (1+√3) / (1+√3) OR (1-√3) / (1-√3) both seems to result the same answer, I'm not sure but people usually multiple by (1-√3) / (1-√3) ? Thanks

**Math: Geometry and Measurement**

Find the area of each circle shown below. Also please tell me how to do it, and no false info please:) The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius of 7 m.

**Math PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!**

I am stuck with Find the value of X in the figure It is a connections academy question on Tools of Geometry Quiz

**Math**

Tom bought three tee shirts for the sale price of $14.50. The three tee shirts were originally priced $3.99,$6.99, and $5.99. How much money did he save compared to the original total price of the T-shirts? Show your calculations. What percentage of the original total price ...

**Math-please check**

1. Write a rule for the sequence. 8, -1, -10, -19... A. Start with 8 and add -9 repeatedly B. star with -9 and add 8 repeatedly C. start with 8 and add 9 repeatedly --- D. start with 8 and subtract -9 repeatedly 2. Find the next three terms of the sequence. -4, -8, -16, -32...

**MATH!!!!!!!!! HELP!!!!!!!! DX**

During a three-day period, the stock of Money, Inc. gained 6 points, lost 10 points, and gained 2 points. What was the total change in points for the three days?

**Math**

I am having trouble understanding how to solve equations with variables. Such as: 15(4+3y)=9y-(8-5y) I am unsure where to distribute, and what.

**math;)**

1. At which values of x does the graph of f(x)=cos x intersect the x-axis? Select all that apply. (2 answers) a. 0*** b. pi/2*** c. pi d. 3pi/2 e. 2pi 2. Which of the following represents the domain and range of y=tan x? a. domain: -infinity<x<infinity range: -infinity&...

**Math**

Gershona is babysitting her brothers. To keep them occupied, she lets them put stickers into sticker books. Joshua puts 110 stickers on 22 pages. Mike puts 100 stickers on 25 pages. Select all statements that are true about these ratios. a) Mike's sticker book has 5 stickers ...

**Math**

If I roll a die 6 times, how many 5's do I expect to get? I know if I rolled it one time I would have a 1 in 6 chance of getting a 5, but how do I determine how many I would expect to get if I roll it 6 times?

**Math**

1. What is the intercept (y-intercept) of the function y = 2.5x + 8 is it 8? 2. What is the x-intercept of the function y = 2.5x + 8 i'm honestly not sure... 3. What is the slope of the function y = 2.5x + 8 um...is it 2.5? 4. The sides of a triangle are 6,10, and 12. Using ...

**Math**

1. What is the intercept (y-intercept) of the function y = 2.5x + 8 2. What is the x-intercept of the function y = 2.5x + 8 3. What is the slope of the function y = 2.5x + 8 4. The sides of a triangle are 6,10, and 12. Using Pythagorean Theorem, determine if the triangle is a ...

**Math**

Sally has 1/3 as many stickers as Mary. Jane has 3/4 as many stickers as Sally. If the three girls have 114 stickers altogether, how much stickers does Jane have?

**MATH!!!!**

Henry has 4 times as much money as David. David has 3 times as much money as Ryan. The total money of the three boys is $128. How much does Henry have?

**math**

The age of Mwenda is 3/5 of that of his sister.If 20 years ago the age of Mwenda was 2/5 of that of his sister then. Find the present age of Mwend. #Please guys help me this question#

**Math**

In a class of 20 students, 40% are boys. Twenty-five percent of the boys and 50% of the girls wear glasses. How many students wear glasses?

**math**

Hi im a connexus student in 6th grade so if ur in connexus too help me because us connexus student need to team up and unite so we can get A+ and our parents will get us phones and stuff because we have good grades. ok deal connexus students? ok so here is my math question: c/...

**MATH**

The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi. which of the following could be the equation of the function? A) f(x)=4 cos x/2-3 B) f(x)=4 sin x/2-3 C) f(x)=4 sin 2x-3 D) f(x)=8 sin x/2-3 I think...

**Math**

How to convert y^2-8x-16=0 to polar form

**Math**

"Point B (4,0) is rotated 45 degrees clockwise about the origin. Write the exact coordinates of B'."

**math**

Five more than 6 times a certain number is 29. Find the number.

**Math**

We have the survey data on the body mass index (BMI) of 648 young women. The mean BMI in the sample was x¯=27.2. We treated these data as an SRS from a Normally distributed population with standard deviation σ= 7.4. Find the margins of error for 90% confidence based on SRSs ...

**Math**

sam decides to build a square garden if the area of the other garden is 9x^2 -24x +16 square feet what is the length of one side of the garden

**MATH**

A. triangle ABC is reflected over the y- axis. What are the coordinates of the reflected triangle? B. Describe in words what happens to the x- coordinates and y- coordinates of the original triangle's vertices as a result of this reflection.

**Math**

Please help me with this riddle please! Why is a party like pouring oil into a car?

**math**

What are two decimals whose product is close to 10?

**Math**

Lance wants to find the total length of three boards he use the special 3 1/2 + 2 + 4 1/2 how can Lance rewrite the expression using both the associative and commutative properties of addition

**Math**

David and Ted are walking a trail. Ted walks 3.1 kilometers farther than David. Part a. Write an equation for the number of kilometers David walks, d, if Ted walks 5.4 kilometers Part b. Write an equation for the number of kilometers that Ted walks, t, if David walks 4.9 ...

**Math**

Identify all the sets to which the number 0.46517 Repeating belongs. A. rational number B. irrational number*** C. integer, rational number D. whole number, integer, rational number Pls Help me.Thx

**Math**

Suki is trying to solve the equation 62.75 + x = 92. Determine whether Suki could use each statement below to reason and solve the equattion a. Suki can add 62.75 to both sides of the equation. b. Suki asks,"What number can be added to 62.75 to 92?" c. Suki thinks,"x is the ...

**Math**

Samantha works part time at a store where she earns $462.30 each month. Write an expression that can be used to find the amount Samantha earns working any number of months, m.

**Math**

Matter is in a liquid state when its temperature is between its melting point and its boiling point. Suppose that some substance has a melting point of negative 46.81 degrees and a boiling point of 357.63 degrees . What is the range of temperatures in degrees Fahrenheit for ...

**Math**

The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side. The lengths of two sides of a triangle are 15 ft and 27 ft. Find the possible lengths of the third side. The third side must have a ...

**math**

find the measure of x in the triangle. show all your work. it is a 65 by 65