Saturday
February 13, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
each side of a cube is increasing at the rate of 9 cm/s.When the length of each side is 5 cm , find the rate of increase of its volume and total surface area.
Saturday, February 13, 2016 by Borhan

Math
A rectangle ABCD is inscribed in a circle of radius 'a'. Find the 'area of the rectangle' function and state the domain.
Saturday, February 13, 2016 by Kim

Math,english,further math,government,CRS,lit in english,yoruba,civic,agric,biology
The fourth and sixth term of an arithmetic progession are -4 and -10 respectively. Find A.the common difference B.the first term C.sum of the first twelve terms
Friday, February 12, 2016 by Comfort

Math
Problem: 3-3x18+2=? Answer: 3-54+2= 3-56= -53 ; is it correct? I did follow the order of operations. Thanks...
Friday, February 12, 2016 by Isaiah James

Math- Fourier series
Evaluate the formula for cn in Fourier :integral of e^kx dx = e^kx /k :unless k=0: Type your formula for c0 and cn (n>0) into the indicated spaces. Then rewrite the Fourier series in terms of sines and cosines. Simplify as far as possible (eliminate the zero terms).
Friday, February 12, 2016 by jiya

Math- Fourier series
Evaluate the formula for cn in Fourier :integral of e^kx dx = e^kx /k :unless k=0: Type your formula for c0 and cn (n>0) into the indicated spaces. Then rewrite the Fourier series in terms of sines and cosines. Simplify as far as possible (eliminate the zero terms).
Friday, February 12, 2016 by jiya

Math- Fourier series
Evaluate the formula for cn in Fourier :integral of e^kx dx = e^kx /k :unless k=0: Type your formula for c0 and cn (n>0) into the indicated spaces. Then rewrite the Fourier series in terms of sines and cosines. Simplify as far as possible (eliminate the zero terms).
Friday, February 12, 2016 by jiya

MATH
Ben Garrison invested $15,000 at 5% compounded daily in a credit union account that matures in 1 year. He also invested 20000 at 5.25% compounded monthly in a Silver Screen account that matures in 4 years. (a) What is the interest earned at maturity for both accounts? (b) What...
Friday, February 12, 2016 by Beth

Math
May Wattson has 50000 to invest in a 4-year certificate of deposit that earns an interest rate of 3.75% compounded monthly or 3.50% compounded daily. Based on annual yield which is the better investment?
Friday, February 12, 2016 by Beth

MATH
Mabel has $35,000 to invest in a certificate of deposit for 4 years. The certificate of deposit earns interest at 4.75% compounded daily. What is the annual percentage yield to the nearest thousandth of a percent?
Friday, February 12, 2016 by Beth

Math
156-127=29
Friday, February 12, 2016 by Alex

Math
Chaz is a college student. He has a checking out balance of -$52.00. His roommate Will's checking out balance is -$59.25. Chaz thinks that Will owes more to the bank than Chaz does. Is Chaz correct?
Friday, February 12, 2016 by Anna

Math
Eli has 36 books. He places the same number of books on each of 9 shelves. Which equation below could be used to find the number of books on each shelf? A 36/ ___=6 B ___ x9=36 C 36/6 = ___ D 6x9=____ Plz help..thanks
Friday, February 12, 2016 by Pam

Math
We are adding positive and negative numbers. The question is State positive or negative or it depends along with my answers. Are these correct? Positive + positive: positive Positive + negative: it depends Negative + negative: negative Positive – negative: positive ...
Friday, February 12, 2016 by Carly

Math
What is 1661.1 rounded to the nearest tenth? Thank You
Friday, February 12, 2016 by JasonDerulo

math
the iq score of employee in a firm follow a normal distribution. if the mean is 90 and standard deviation is 13. what percentage of score lies between 64 and 116?
Friday, February 12, 2016 by ram

MAth
Tammy Smith Deposits $5000.00 in First Internets Bank 5-year CD which pays 5.22% interest compounded monthly how much interest will she have in the account in 5 years?
Friday, February 12, 2016 by Beth

math
Write the equation of horizontal line passing trough the point (5, 2).
Friday, February 12, 2016 by joe

math
An exponential function is written in standard form: y = x + c. Which statement is NOT true? A) b can equal 1 B) b must be greater than 0 C) c can be negative or positive D) x can be negative or positive its A?
Friday, February 12, 2016 by Anonymous

Math Help!!!!!!!!!!!!!
Clarissa works in sales for a software company. Her pay each month varies, because each month she receives a base pay of $2,400.00 plus 8% commission on her sales. During the month of November, Clarissa had $18,000.00 in sales. For the month of November, % of Clarissa's ...
Friday, February 12, 2016 by Nabrinah

math
A health inspector wants to check compliance with a new city ordinance on meat storage. Since he can only inspect 10 of the 33 stores, he chooses to do a stratified random sample that consists of all 3 of the large chain stores, 4 of the 10 smaller chain stores, and 3 of the ...
Friday, February 12, 2016 by Anonymous

Math
Joel scores in 80% of his games. His team is starting the playoffs, and if they make it to the state championship, they will have played 5 games. Joel wants to determine the probability that he scores in 4 of the 5 games. Which simulation design has an appropriate device and ...
Friday, February 12, 2016 by Anonymous

Math
1. What is the distance between the points (1, 4) and (4, 8)? I said Distance = 5 2. Find the slope between (1, 4) and (4, 8) I said 4/3 3. Are the expressions (4x+4)/4 and x+1 equivalent? I said Yes 4. Simplify (x+y)2 x2 + 2xy + y2 5. Is (x – y )2 = x2 – y2? No. It...
Friday, February 12, 2016 by Carly

math
how would you write 2 more than x
Friday, February 12, 2016 by Anonymous

Math
Simplify (6x^-2)^2 (0.5x)^4
Friday, February 12, 2016 by Quizzoe

Math
A health inspector wants to check compliance with a new city ordinance on meat storage. Since he can only inspect 10 of the 33 stores, he chooses to do a stratified random sample that consists of all 3 of the large chain stores, 4 of the 10 smaller chain stores, and 3 of the ...
Friday, February 12, 2016 by Lindsey

Math
Joel scores in 80% of his games. His team is starting the playoffs, and if they make it to the state championship, they will have played 5 games. Joel wants to determine the probability that he scores in 4 of the 5 games. Which simulation design has an appropriate device and ...
Friday, February 12, 2016 by Asia

MATH HELP ASAP
Point N is the midpoint of MO. Which of the following are true if MO=124 ft? * 62 ft * 96 ft * 124 ft ***** * 248 ft Am I right please help! IF YOU KNOW ALL THE TEST ANSWERS PUT THEM BELOW PLEASE.
Friday, February 12, 2016 by ILOVEcake

Math
How many complex zeros does the function y = x5 + 3x3 - 4 have? A) 4 B) 5 C) 6 D) There is not enough information to know. I think its D.
Friday, February 12, 2016 by Cody

Math
For a specific type of machine part being produced, the diameter is normally distributed, with a mean of 15.000 cm and a standard deviation of 0.030 cm. Machine parts with a diameter more than 2 standard deviations away from the mean are rejected. If 15,000 machine parts are ...
Friday, February 12, 2016 by Zack

Math
For the series 16, 24, 36, 54,... find S7. A) 32.17 B) 115.75 C) 514.75 D) 3906.25 B?
Friday, February 12, 2016 by Kaycee

Math
How do you find the point of intersection(s) for x = 2y2 + 3y + 1 and 2x + 3y2 = 0 A) You cannot find points of intersections for non-functions. B) Plug in 0 for x into both equations and solve for y. Then plug that answer back into the other equation to find the corresponding...
Friday, February 12, 2016 by Andrew

math
How do you solve for (7.5-2cosθ)^2=√{25-4sinθ​}^2
Friday, February 12, 2016 by Diana

math
the dimension of a cuboid are in the ratio 5:3:2.find total surface area ?given the volume is 810 cm cubic.
Friday, February 12, 2016 by alia

Math
What was the probable speed of a vehicle travelling on a dry tarred road before a collision occurred if the driver braked hard to avoid a collision, causing the brakes to lock and to leave skid marks of 25 metres?
Friday, February 12, 2016 by Christie Redelinghuys

math
A boat moves from a point A on the bearing 150¡ã to another point B 10km away.it then changes direction on being south 45¡ã east for a distance of 12km to another point C. 1.. How far is the boat from the starting. 2.. What is the bearing of C from A.
Friday, February 12, 2016 by simi

math
A container is 1/3 full of water. If 20L is added, then it is 3/4 full how much litres is it when it is full?
Friday, February 12, 2016 by Anonymous

MATH
FIND THE COORDINATES OF THE POINT ON THE Y-AXIS WHICH DIVIDES THE LINE SEGMENT FROM (0, -4)TO(0,20)INTERNALLY IN THE RATIO 5:7.
Friday, February 12, 2016 by vanessa

math
In which quadrant does the angle Θ lie given that Cos Θ > 0 and tan Θ > 0? A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV B?
Friday, February 12, 2016 by Justin

Math
What is sin Θ given (3,-2) is a point on the terminal of Θ? A.-2/3 B.-sqrt13/13 C.3sqrt13/13 D. -2sqrt13/13 I think it's C
Friday, February 12, 2016 by Ashley

Math
Cos(-Θ) = Sqrt2/3 SinΘ<0 What is the value of sin Θ? A. Sqrt7/3 B.-sqrt7/3 C.sqrt14/7 D.-sqrt14/2 I think it's C
Friday, February 12, 2016 by Ashley

Math
A 63ft tree casts a 16 ft shadow. What is the angle of elevation from the end of the shadow to the too of the tree to the nearest degree? I think it's 75.7
Friday, February 12, 2016 by Amber

Math
What point on the unit circle corresponds to -5pi/4? A. (-Root2/2, Root2/2) B.(-Root3/2, 1/3 C.(-1/2, Root3/2) D.(0,1) D?
Friday, February 12, 2016 by Robert

Math
Which angles are coterminal with pi/6? Chose all answers that are correct. A. 5pi/6 B.13pi/6 C.-5pi/6 D.-11pi/6 I think its A and C
Friday, February 12, 2016 by Kaylen

math
what must b added to 183÷11 to make it a integer?
Thursday, February 11, 2016 by niten

Math
Elena jogs 7 kilometers west and then 5 kilometers down south. She stops and checks her time. How far is she from her starting point?
Thursday, February 11, 2016 by Isaac

Math
n(A)=2,n(B)=3,AND (x,1),(y,2),(y,3)€A*B=?
Thursday, February 11, 2016 by Algebra of sets

Math-quick Q
So I had already asked a question on inverse and direct variation problems, how would it be if the problem is neither inverse or direct
Thursday, February 11, 2016 by Sophie D.

Math
What is the amount of brain cereal written as a fraction greater than 1,that is usted un the recipe?
Thursday, February 11, 2016 by Anonymous

Math
What is the amount of brain cereal written as a fraction greater than 1,that is usted un the recipe?
Thursday, February 11, 2016 by Anonymous

Math
Can anyone give me an example of a situation that is inversely proportional and one that is direct? Also tell me the difference between the two.
Thursday, February 11, 2016 by Sophie D.

Math
4 pennies, 2 nickels, 3 dimes in a pocket. If two are coins are chosen, what is the probability that both are dimes?
Thursday, February 11, 2016 by Will

Math
1. Which property is NOT a characteristic of a parallelogram? A. Opposite sides are not congruent B. All angles are congruent** C. Opposite sides are parallel D. Opposite angles are congruent
Thursday, February 11, 2016 by Holly

math
Joe bought a television for $286.26, including tax. He made a down payment of $20.00 and paid the balance in 6 equal monthly payments. What was Joe's monthly payment for this television?
Thursday, February 11, 2016 by nicky

Math
3x+7+4(x-2)
Thursday, February 11, 2016 by Selissa

MATH
A 2-mile long train travels at 40 miles per hour through a 1.5-mile long tunnel. How long will it take the train to completely pass through the tunnel? (Answer should be given to the nearest second.)
Thursday, February 11, 2016 by PLEASE HELP

Math
The Problem: You win the grand prize on a game show. You have the following choices: Option 1: $1-million dollars paid as a $25 000 annuity every year over 40 years. Option 2: The present value of option 1 if the current interest rate is 4%, compounded annually. You ...
Thursday, February 11, 2016 by jordan

math
There were six hundred students to a football match the beginning of the match there one thousand students
Thursday, February 11, 2016 by kim

MATH HELP
The table shows preferences of dancing or playing sports for male and female students. Do you prefer dancing or playing sports? Playing sports Dancing Row totals Male students 18 . 16. 34 Female students 18. 35 53 Column totals 36 51. 87 Mason mistakenly calculated the ...
Thursday, February 11, 2016 by Oscar

MATH
If the perimeter of a square floor tile is about 122 centimeters, what is the approximate perimeter of the tile in inches?
Thursday, February 11, 2016 by SHABRAELNN

Math
1. Which polygon will always be irregular? A. triangle B. trapezoid** C. square D. hexagon 2. Which statements are always true about regular polygons? (Choose 2) A. All sides are congruent B. Pairs of sides are parallel** C. All angles are congruent** D. All angles measure 90 ...
Thursday, February 11, 2016 by Willow

math
i need help with my math
Thursday, February 11, 2016 by little dark one

math-4th grade
12+2/2+4= just want to double-check: first we must do the 2/2 as the multiplication and division is affecting the number directly before it.. so 12+1+4=17
Thursday, February 11, 2016 by Anonymous

math
solve the following system of equations enter the x coordinate of the solution. Round your answer to the nearest tenth. 5x+2y=22 -2x+6y=3
Thursday, February 11, 2016 by bob

Math
What figure has six faces, and each face has the same surface area?
Thursday, February 11, 2016 by Isaac

Math
Jenny's mean score on three science tests was 75. Her last two scores were 79 and 80. She forgot her score on the first test. What was it?
Thursday, February 11, 2016 by Sorin

math
Elena jogs 7 kilometers west and then 5 kilometers down south. She stops and checks her time. How far is she from her starting point?
Thursday, February 11, 2016 by Estefania

Math
Four consecutive even integers have a sum of 8,484. What are the integers?
Thursday, February 11, 2016 by Nena

Math
To promote the launch of a new Cadbury's chocolate bar, they are offering a ''buy four, get one free,'' deal. If each chocolate bar costs thirty cents, how much would ten chocolate bars cost?
Thursday, February 11, 2016 by Sidney

Math
On Thursday,1/6 of students in class were absent.If there are 36 students in total,how many students were absent? Use a model to show your work.
Thursday, February 11, 2016 by Makyra Wallace

math
The Devon Avenue bus passes Max’s house every 9 minutes. The western bus passes it every 30 minutes. The two busses last passed by together at 10:00 AM. When is the next time that will happen?
Thursday, February 11, 2016 by Ares

Math
Tom is less than 10 years old. He is one half as old as Chris. In 8 years, Tom will be three-fourths as old as Chris. How old is Tom?
Thursday, February 11, 2016 by John

math
Each edge of the cube measures 24 inches. Raj wants to cover the top and four sides of the table with ceramic tiles. Each tile has an edge length of 6 inches. How many tiles will he need?
Thursday, February 11, 2016 by cat

Math
I am the largest 6 digit odd number you can make without repeating digits. What number am I?
Thursday, February 11, 2016 by Bianey

Math
A train travels a distance of 90 miles from A to B in one hour. Another train sets off at the same time and travels from B to A, taking two hours to complete the journey. How many miles from A did the two trains cross?
Thursday, February 11, 2016 by Estefania

Math
A turkey weighs 40 pounds plus half of its weight. What does it weigh?
Thursday, February 11, 2016 by Sidney

math grade recovery plz help
domino scored 33 points in yesterdays basketball game.his team scored 150 points.what percent of the points did domino score.
Thursday, February 11, 2016 by ashleydawolfy

math grade recovery plz help
write the number from least to greatest : 0.36 , 1/3 , 29%, 7/20
Thursday, February 11, 2016 by ashleydawolfy

Math, HELP ME!
What is the experimental probability of the spinner landing on red? a. 1/2 b. 1/3 c. 1/4 *** What is the experimental probability of the spinner landing on blue? a. 2/7 b. 1/4 *** c. 2/9 There’s a spinner with 8 sections in total with different colors. 2 red, 2 green, 2 ...
Thursday, February 11, 2016 by Ginger

Art
During which time period were artists keenly interested in using the golden ratio in their paintings? A.Baroque Period B.Oriental Period C.Futuristic Period D.Renaissance Period •• When the Greeks built the Parthenon its dimensions nearly matched the golden ratio ...
Thursday, February 11, 2016 by Kiana

math 035
The area of a rectangular garden is 140 square meters. The width is 3 meters longer than ​one-half of the length.
Thursday, February 11, 2016 by mmm

math
6. The measure of angle B is 65.8°. Find the measure of the complement and supplement of angle B. A.)24.2°; 155.8° B.)155.8°; 24.2° C.)114.2°; 24.2° D.)24.2°; 114.2°
Thursday, February 11, 2016 by luv_shire

MATH
there are 9 candidates running for 3 seats on a committee. how many different election results are possible? 36 84 504 56***
Thursday, February 11, 2016 by K_A_B

MATH>:(
how many ways can seven students line up for a picture? 5,040 210 28 7***
Thursday, February 11, 2016 by K_A_B

Math
An open gift box is to be made from a square piece of material by cutting four-centimeter squares from each corner and turning up the sides (see figure). The volume of the finished gift box is to be 324 cubic centimeters. Find the size of the original piece of material.
Thursday, February 11, 2016 by Katie

Math
Find Domain and range of the function f (x)=2x+7, -1 <= ×<= 6 (<=) is less than or equal to, sorry
Thursday, February 11, 2016 by Danniela

Math
3.22 Defective rate. A machine that produces a special type of transistor (a component of computers) has a 2% defective rate. The production is considered a random process where each transistor is independent of the others. (a) What is the probability that the 10th transistor ...
Thursday, February 11, 2016 by Anonymous

math
how many ways can a president and vice president be selected in a class of 12? 23*** 72 130 1,320
Thursday, February 11, 2016 by 7th Grade Questions

Math
Dumb question I know, but I've never really thought about it. If you square a negative x, does it become positive? (-×)^2=?
Thursday, February 11, 2016 by Steve

math
10^5 what does this mean
Thursday, February 11, 2016 by ntombizonke

Math
Is Lagrenge's mean value theorem applicable to f(x)=|x| on the interval [-1,2]
Thursday, February 11, 2016 by Ri

Math
I just want to make sure I have done this correctly. (10a^3b)(3ab^2c^2) = 30a^4b^3c^2
Thursday, February 11, 2016 by Sami

Math
What will be its differential equation? y^2-2xy+x^2=a^2
Thursday, February 11, 2016 by Ri

math
Caitlyn calculated the probability of the complement of rolling a number greater than 2 on a 6-side number cube. She made her calculation as follows. Did she make an error? Explain.
Thursday, February 11, 2016 by liyah

math
Area of a triangle is72cm squared base=12 height=?
Thursday, February 11, 2016 by Karen

math
A car travels 172 miles using 7 gallons of gas. At that rate, how far can the car travel using 42 gallons of gas ( i got 1,032 ) answers to choose:1,032 miles 1,548 miles 1,204 miles or 1,376 miles
Thursday, February 11, 2016 by little dark one

Math
Find the volume of iron required to construct an open box whose external dimensions are 36cm,25cm,and 16.5cm,provided that the thickness of the metal is 1.5cm.If1cm cube of iron weight 7.5g find the weight of the box.
Thursday, February 11, 2016 by Devinder sharma

Math
1.5m tall boy stands at a distance of 3m from a lump post and cast a shadow of 4.5m on the ground.Find the height of lump post
Thursday, February 11, 2016 by Devinder sharma

math
A cylindrical metal radius 7cm and height 15cm has its centre drilled with a hole of 5cm in cross-section. If 152cm(cube) of d metal weight 125kg, what is the weight of d hallowed cylinder? How do I solve this please?
Thursday, February 11, 2016 by birock

math
A stirring blade is attached at the level of the center of the wheel. Find the distance from the center of the wheel to the stirrer blade for 30° and 225° angles of rotation. The radius is 2ft and the rod of the blade attached to the blade is 5ft long. Describe the ...
Thursday, February 11, 2016 by Anonymous

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