# Homework Help: Math

## Branches of Math

## Recent Math Questions

**Math, Induction**

prove by induction that 3.7^(2n)+1 is divisible by 4

*Friday, March 17, 2017 by Majeed*

**Math**

what is the surface area of the rectangular prism? length: 21.5mm height: 5mm Width: 4mm A. 480MM^2 B. 427MM^2**** C. 213.5MM^2 D. 255MM^2

*Friday, March 17, 2017 by BlueFire*

**Math - Trigonometry**

A, B and C are three towns, the bearing of B and C from A being 295° and 205°, and their distances from A are 280km and 800km respectively. Find the bearing of C from B to the nearest minute.

*Friday, March 17, 2017 by Anonymous*

**Math - Trigonometry**

Standing on top of a building 42 m high, an observer sights two objects at P and Q on opposite sides of the building. The angles of depression from the observer to P and Q are 23° 18' and 35° 33' respectively. What is the distance between P and Q to the nearest m? Again, ...

*Friday, March 17, 2017 by Anonymous*

**Math - Trigonometry**

The diagonal of a rectangle of width 3.8, makes an angle of 32° 15' with each of the longer sides. Find the length of the diagonal, and the length of the rectangle. Im not sure how to picture/draw the shape, which in term will tell me if it is cos, sin or tan. Also will ...

*Friday, March 17, 2017 by Anonymous*

**Math**

The difference between two numbers is 21. If twice the smaller number is added to one-half of the larger number, the result is 38. What are the numbers?

*Friday, March 17, 2017 by Jeanine*

**math**

A boy draw the frame of a picture to a scale of 1cm to 15cm.if his drawing has 5cm length and 3cm as breath, what is the actual length and breath of the picture?

*Friday, March 17, 2017 by Ene*

**Math**

Use the sterm-and-lead plot below to answer questions 1-3 Stem Leaf 5 4 5 6 0 6 9 7 2 3 4 5 5 8 1 2 8 9 9 5 6 5/4= 54 1. What is the range of data? A. 40*** B. 42 C. 54 D. 96 2. What is the median of the data? A. 64.5 B. 72.5 C. 74.5*** D. 75 3. What is the mode of the data? A...

*Friday, March 17, 2017 by Help me plz*

**5th grade math**

Rachel has a box of cupcakes that she wants to share equally with her 5 friends. Write an expression to represent the problem.

*Friday, March 17, 2017 by Douglas*

**Math**

A rectangular field has side lengths of 2/3 mile and 3/4 mile. What is the area of the field.

*Friday, March 17, 2017 by Jac*

**Last math question of the night plz help quickly!**

Find the domain and ranges of the following: f(x)=(2/3)x-3 f(x)=-3x+7 Thank you in advance, this helps me a lot because I really suck at finding domain/range and it's super late rn.

*Friday, March 17, 2017 by help!*

**math**

in cooking 1 drop equal 1/6 of a dash. if a recipe calls for 2/3 of a dash, how many drops would that be.

*Friday, March 17, 2017 by Anonymous*

**Math**

What is half of 4 and 4 1/2

*Friday, March 17, 2017 by Anonymous*

**Math**

secx+tanx/secx- tanx = 1+2sinx+sin^2x/ cos^2x

*Thursday, March 16, 2017 by Madison*

**Math**

I have a rectangle with a semicircle on each end.the area of the rectangle is 5500 sqare meters. What is the perimeter of the track

*Thursday, March 16, 2017 by Anonymous*

**Math**

Which set of output values correctly complete the function table? ------------------- | y = -4x | |------------------ |-6 | ? | |------------------ |-2 | ? | |------------------ | 3 | ? | -------------------- A: -24, -8, -12. B: 24, 8, 12.** C: 24, 8, -12. D: -24, -8, 12...

*Thursday, March 16, 2017 by Dejavu*

**math**

can someone explain y we have 2 have math???

*Thursday, March 16, 2017 by Baby girl*

**3rd grade math**

Johns ate 3/8 of a pizza how much was left?

*Thursday, March 16, 2017 by Heather*

**Math**

I need some help on this function rule question. 8.) Find the function rule. x: -2 -1 0 1 2 y: 9 4 -1 -6 -11 I'm having a really hard time figuring this out. Thnx

*Thursday, March 16, 2017 by Need Help ASAP!!!*

**Math**

What are 7 names for 8 using numbers less then 10

*Thursday, March 16, 2017 by Amari*

**Math**

Sade found that 75% of 60 is the same as 30% of another number n.what is the value of n?

*Thursday, March 16, 2017 by Kim*

**Math**

I need some help on this function rule question please. 8.) Find the function rule. x: -2 -1 0 1 2 y: 9 4 -1 -6 -11 I'm having a really hard time figuring this out. Thanks to anyone that helps:)

*Thursday, March 16, 2017 by Anonymous*

**Math**

What fraction is equivalent to 6/8?

*Thursday, March 16, 2017 by gianna*

**Math**

The ratio of cats to dogs is 2:5. If there are 9 more dogs than cats, how many cats are there???

*Thursday, March 16, 2017 by Aloha Liah*

**6th grade math**

Am aquarium in the shape of a right rectangle prism is 12.5 inches long,6 inches wide and 8 inches high is the total amount of water needed, to the nearest cubic inch, to fill 90% of the aquarium with water

*Thursday, March 16, 2017 by Nyan*

**math**

Many thanks, Ms. Sue! then, round to nearest tenth of a percent means 12.35%=12.4%, is this right?

*Thursday, March 16, 2017 by Jianguo*

**math**

A rectangular prism has a base that measures 5 cm by 3cm and a height of 2cm. Cameron fills the prism with 1/2 centimeter cubes.

*Thursday, March 16, 2017 by Nyan*

**math**

Round your answer to the nearest percent. What does it mean? please!

*Thursday, March 16, 2017 by Jianguo*

**English**

1. Math is complex but useful. 2. Math is complicated but useful. (Are both okay? Which syllable is stressed in 'complex'? First syllable or second syllable? There seem to be two ways in the dictionary.)

*Thursday, March 16, 2017 by rfvv*

**Math**

The ratio of dogs to cats are 2 to 3 if there is 15 total animals how many cats are there

*Thursday, March 16, 2017 by First name*

**math**

A polynomial P(x) has remainder R x +S on division by (x-a) (x-b). If a is not equal to b, express the constants R and S in terms of a, b, P(a), P(b). Find the remainder when P(x) is divided by (x-a)^2.

*Thursday, March 16, 2017 by youngguru*

**Math**

If your trip cost $8.50 per student if 125 students are going on the trip the total of $1,011.50 has already been collected how many students have not paid yet

*Thursday, March 16, 2017 by Jordyn*

**math**

Tickets to a museum cost $3 and $8 for adults. a group of four visitors to the museum spent a total of $22 on tickets. Write and solve a system of equations to represent this situation. Interpret the solution

*Thursday, March 16, 2017 by max*

**5 grade math**

An office supply company is shipping a case of wooden pencils to a store. There are 64 boxes of pencils in the case. If each box of pencils weighs 2.5 ounces, what is the weight, in pounds , of the case of wooden pencils?

*Thursday, March 16, 2017 by Layla Jimenez*

**Math**

Cashews sell for. 65 per ounce. What is the cost of 3/4 of a pound?

*Thursday, March 16, 2017 by Bao*

**math**

The total distance the plane flies from Chicago to New York City is 792 miles. The flight is 2 hours and 5 minutes long. The plane flies at about the same speed during the trip.• Round the flight time to the nearest hour. About how far will the plane fly in 30 minutes? • ...

*Thursday, March 16, 2017 by snoyu*

**math**

which of the following describes japan after world war 2 japan adopted a communist government japan adopted a democratic government japan was divided into north japan and south japan japan emerged from the war as one of the world's most powerful nations

*Thursday, March 16, 2017 by PLZ.Help ME*

**Math**

What is the slant height for the given pyramid to the nearest whole unit? Pyramid base = 6cm Height = 4cm A.) 7cm* B.) 5cm C.) 9cm D.) 8cm Ca n someone please check this?

*Thursday, March 16, 2017 by Dylan*

**Math Algebra**

hi guys need help with a few questions. 1. Which equation represents the axis of symmetry of the function y = 2x^2+4x-6? A. y= 1 B. x= 1 C. x=3 D x= -3 2. & 3. What are the coordinates of the vertex of the graph of the function - 2. y = -x^2+6x-11 A. (3,-2) B. (3,16) C. (-3,-...

*Thursday, March 16, 2017 by jack*

**math**

p(a multiple of 2) A 0.25 B 0.5 C 0.625*** D 0.75

*Thursday, March 16, 2017 by heaven*

**Math**

If the pth,qth and rth terms of an AP be a,b and c respectively then prove that p(b-c)+q(c-a)+r(a-b)=0

*Thursday, March 16, 2017 by Elsa tony*

**Math**

You borrow $3200 to buy new kitchen appliances. The simple interest rate is 5%. You pay the loan off after 4 years. What is the total amount you paid for the loan? $___

*Thursday, March 16, 2017 by Madeline*

**Math**

15% of what number is 42?

*Thursday, March 16, 2017 by Madeline*

**Math**

What percent of 15 is 9?

*Thursday, March 16, 2017 by Madeline*

**Math**

Name the population and the sample in these two 1) The number of roadrunners born within a 50-mile radius of lubbock 2) The cars traveling at a 75 kilometers per hour between beaumont and lufkin

*Thursday, March 16, 2017 by Josh*

**Math: equations**

Samantha has triple the number of braclets as Ruth. Ruth has x braclets. All together, they have 48 braclets. Find the value of x.

*Thursday, March 16, 2017 by Katherine*

**math**

Karen borrowed money from a loan shark at an interest rate of 114% APR. Karen paid the loan shark $12150.00 back after 25 months (after being threatened a few times). What will be the time in the formula be for this calculation? How much money did Karen borrow?

*Thursday, March 16, 2017 by chas*

**math**

Mary is borrowing $3130 from a Loan Shark that will charge 4% APR. After being threatened for 18 weeks straight, Mary will pay the Loan Shark back. How much interest will Mary pay for this loan? How much will Mary have to pay the loan shark back?

*Thursday, March 16, 2017 by chas*

**Math**

Given that the equation x(x-2p)=q(x-p) has real roots for all real values of p and q. If q=3, find a non-zero value for p so that the roots are rational.

*Thursday, March 16, 2017 by Majek*

**Math**

Help. If p and q are the roots of the equation 2x^2-x-4=0. Find the equation whose roots are p-(q/p) and q-(p/q). Working please

*Thursday, March 16, 2017 by Majek*

**Math**

The area of a rectangular field is 0.5 hectare if one side is 12.5 metre find the other side in metres

*Thursday, March 16, 2017 by Hira*

**math**

Sam has 18 employees on his staff. He gave 2 chocolate chip cookies and 5 peanut butter cookies to each employee. What is the total number of cookies he gave away?

*Thursday, March 16, 2017 by KaVonus*

**math**

Solve the simultaneous equations 2^x-5^y=3 and 2^(x-2)+5^(y-2)=2

*Thursday, March 16, 2017 by nafiu*

**Math**

a loan shark charges 81.5% APR. What is this as a percent per month?

*Thursday, March 16, 2017 by Nek*

**MAth**

a bank charges 0.037% per day. What is this as an APR?

*Thursday, March 16, 2017 by Nek*

**math**

the lengths of the sides of a triangle are 10,17 and 21 cm. how long is the altitude of the triangle to the longest side?

*Thursday, March 16, 2017 by Dominic*

**Math, Series**

Given that 1/(y-x), 1/2y, and 1/y-z are consecutive terms of an arithmetic progression, prove that x,y, and z are consecutive terms of a geometric progression.

*Wednesday, March 15, 2017 by Raj*

**Math**

Find the length of the curve y=(x3/3)+x2+x+1/4x+4 Plases solve

*Wednesday, March 15, 2017 by Abdullah*

**math**

You have a total of 52 dimes and quarters. You have 10 more quarters than dimes. Which system of equations can you use to find the number x of quarters and number y of dimes you have? Use the system to determine how much money you have in quarters and dimes.

*Wednesday, March 15, 2017 by jane*

**basic math**

how to write forty five thousand three hundred twelve

*Wednesday, March 15, 2017 by Anonymous*

**Math**

A test has 12 problems, and each problem is worth 5 marks. Full marks are given for a correct answer, 2 marks are given if there is no answer, and no marks are given for an incorrect answer. Some scores between 1 and 60, are impossible to get on this test. What is the sum of ...

*Wednesday, March 15, 2017 by Thomas*

**math**

Amy leaves home at the same time every morning and gets to school exactly at 8 AM. If she traveled at 70 meters per minute she would arrive 10 minutes early. If she traveled at 60 meters per minute she would arrive 8 minutes early. What time does Amy leave home each morning?

*Wednesday, March 15, 2017 by Dave*

**math**

A ladder 29 feet long leans against a wall and the foot of the ladder is sliding away at a constant rate of 3 feet/sec. Meanwhile, a firefighter is climbing up the ladder at a rate of 2 feet/sec. When the firefighter has climbed up 6 feet of the ladder, the ladder makes an ...

*Wednesday, March 15, 2017 by karthik*

**math 1**

c) 36,31,25,21,... t7 and t20 arithmetic and geo metric

*Wednesday, March 15, 2017 by Rocky*

**math**

find the area of the circumference. 42 FT A. 132 ft I got A. and others told me this 2 is this correct?

*Wednesday, March 15, 2017 by Baby girl*

**Math**

50 is what percent of 125?

*Wednesday, March 15, 2017 by Madeline*

**math**

The sale price of an item is $180 after a 25% discount is applied. What is the original price of the item?

*Wednesday, March 15, 2017 by Madeline*

**math**

Mike says that 3/3 of his fraction model is shaded blue. Ryan says that 6/6 of the same model is shaded blue. Are the two fractions equivalent? If so, what is another equalivant fraction?

*Wednesday, March 15, 2017 by gianna*

**MATH**

In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezoid.

*Wednesday, March 15, 2017 by none*

**math**

find the circumference of the circle round to the nearest foot. it is 42 ft I got a but I'm not sure. A.132ft B.264ft C.1,320FT D.2,640FT

*Wednesday, March 15, 2017 by Anonymous*

**Math**

Describe the cross sections formed as the plane intersects the interior of the sphere but moves away from the center

*Wednesday, March 15, 2017 by George*

**Math**

If the scale had been 2/3 inch: 4 feet , how many inches longer would the scale drawing of Quinta's bedroom have been?

*Wednesday, March 15, 2017 by Anonymous*

**math**

John let out 50 foot of kite string when he observes that his kite is directly above a point on the ground 30 feet away from him, how high is the kite ?

*Wednesday, March 15, 2017 by carlos*

**Math**

Kylee bought a pack of 12 cookies. One-third of the cookies are peanut butter. How many of the cookies in the pack are peanut butter?

*Wednesday, March 15, 2017 by Gianna*

**Math**

Three workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?

*Wednesday, March 15, 2017 by URGENT*

**Math**

It took Jen, who biked at a speed of 12 mph, 20 minutes to get home. What is Jim’s speed, if it took him only 15 minutes to bike that distance?

*Wednesday, March 15, 2017 by URGENT*

**Math (Ms.Sue please help!)**

Sarah owns a small business. There was a loss of $19 on Thursday and a loss of $12 on Friday. On Saturday there was a loss of $11, and on Sunday there was a profit of $15. Find the total profit or loss for the four days. A. $35 loss B. $19 profit C. $27 loss D. $57 profit

*Wednesday, March 15, 2017 by Fork-A-Dork*

**Math**

Find the length of the curve y=(x3/3)+x2+x+14x+4 Plases help to find the curve

*Wednesday, March 15, 2017 by Abdullah*

**Math**

The original Ferris wheel introduced at the 1893 World's Fair in Chicago had a diameter of 250 feet. What is the closest distance a person who rode this wheel travelled in one complete revoulution

*Wednesday, March 15, 2017 by KK*

**Math HELP**

A new luxury car costs $80,000. You pay 10% down and amortize the rest with equal monthly payments over a 7-year period. If you pay 9.25% compounded monthly, what is your monthly payment? How much interest will you pay?

*Wednesday, March 15, 2017 by Lilian*

**Math! Help Hurry!**

A chest shaped as a rectangular prism can hold 576 wooden cube blocks with edge lengths of 1/4 ft. What is the volume of the chest?

*Wednesday, March 15, 2017 by JT*

**Math! Help Hurry!**

Tasha has foam blocks stored in a box that measures 3 1/4 ft long by 3 ft wide by 1 ft tall. Each foam block is a cube with 1/4 ft edge length. How many blocks can fit into the box? A)156 B)312 C) 624 D) 2496

*Wednesday, March 15, 2017 by JT*

**Math! Help Hurry!**

A prism is completely filled with 96 cubes that have edge length of 1/2 cm. What is the volume of the prism?

*Wednesday, March 15, 2017 by JT*

**Math! Help Hurry!**

A rectangular prism has a length of 8 in., a width of 4 in., and a height of 2 1/4 in. The prism is filled with cubes that have edge lengths of 1/4 in. How many cubes are needed to fill the rectangular prism?

*Wednesday, March 15, 2017 by JT*

**Math and Hurry Please!**

A prism is completely filled with 2304 cubes that have edge length of 1/4 cm What is the volume of the prism?

*Wednesday, March 15, 2017 by JT*

**Math**

A quart of milk and cream contains 28 ounces of milk. If 8 ounces of cream are added, what percent of the new mixture is cream?

*Wednesday, March 15, 2017 by colandaa*

**Math**

Question: An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 249 m/s^2 . Part A: What is the magnitude of the electric field? Answer: E=_____ N/C Part B: What is the direction of the electric field? (Choose one) - to the ...

*Wednesday, March 15, 2017 by Ashley*

**Math**

Which statement shows 28% on a 5x5 grid? ÷ are the shaded/× are the blank A.÷×÷÷÷ ÷÷÷×÷ ÷÷÷÷÷ ×÷÷÷× ÷÷÷÷× B. ×÷××÷ ÷××÷× ××÷÷× ××××× ××××÷ C. ××××× ÷×÷×× ×÷××× ××÷×× ÷×××÷ D...

*Wednesday, March 15, 2017 by CanYouHelpMe*

**math**

A person sold 100 shares of a stock at a loss of 40%. If the selling price for the 100 shares was $3,000, which of the following comes closest to what was paid for the stock?

*Wednesday, March 15, 2017 by toya*

**math**

CC-chem co manufactures a single product, product W, and have provided you with the following information which relates to the period which has just ended. Standard cost per unit of product W Materials Price per kilo total Kilos $ $ F 15 4 60 G 12 3 36 H 8 6 48 totals 35 144 ...

*Wednesday, March 15, 2017 by Ndung'u*

**Math**

[Note: I did the first half of this question by myself and got it correct. But I got the second half wrong] Question: How much work does the electric field do in moving a proton from a point with a potential of +160 V to a point where it is -45 V ? Express your answer in ...

*Wednesday, March 15, 2017 by Ashley*

**Math**

Hi! I quickly just need to know what is an irrational number? Thanks! ~Dani

*Wednesday, March 15, 2017 by Dani*

**Math**

9. Calculate the area of the composite figure, which is not drawn to scale. (Workpad needs to be worked out, correctly). 17 cm (rectangle part) top, 22 cm height (one side, rectangle), 10 cm height (other side, rectangle), 19 cm bottom (some, triangle part), 17 cm bottom (...

*Wednesday, March 15, 2017 by Kk*

**math**

Dench manufacturing has received a special order from Sands to produce 225 components to be incorporated into Sand's product. The components have a high cost, due to the expertise required for their manufacture. Dench produces the components in batches of 15, and as the ones ...

*Wednesday, March 15, 2017 by Cyrus*

**math**

CC-chem co manufactures a single product, product W, and have provided you with the following information which relates to the period which has just ended. Standard cost per unit of product W Materials: Materials Price per kilo total Kilos $ $ F 15 4 60 G 12 3 36 H 8 6 48 35 ...

*Wednesday, March 15, 2017 by Cyrus*

**intermediate algebra**

inequalities –1 ≤ x – 3 ≤ 5 –2x – 5 < –2 or x – 3 < –10 Be careful of how a negative x-term is handled in the solving process. Show all math work arriving at the solutions. •Show the solution sets written algebraically and as a union or intersection ...

*Wednesday, March 15, 2017 by sean*

**MATH HELP! CHECK MY ANSWER ASAP!**

1. The formula V = lwh is used to calculate the volume of a rectangular prism. What is the equation solved for h? (1 point) a. Vlw = h b. Iw/V = h c. V/Iw - h** d.Vh = lw 2. What is the equation x = y + z solved for z? (1 point) a. x + y = z b. x/y = z c. y/x = z d. x - y = z...

*Wednesday, March 15, 2017 by Cream Puff*

**Math**

(b) Each piece of wood for the porch must be 2.25 feet long. • How many pieces can Tyler’s father cut from the 10 boards? • Use words and numbers to explain how you found your answer

*Wednesday, March 15, 2017 by Pain is Beauty and Beauty is Pain*

**math**

cassie needs 16 yards of yarn and she has 580 inches of yarn does she have enough and explain please

*Wednesday, March 15, 2017 by brandy*

**math**

A newlywed couple wishes to have 3 children. What is the probability of having exactly 2 boys?

*Wednesday, March 15, 2017 by Georgette*