Saturday

June 25, 2016
**Math**

In the triangle ABC given, side AB is twice as long as side AC. We have: m<BAC=120° mBC= 8cm Determine rounded to the nearest unit, the perimeter of triangle ABC.
*Monday, June 13, 2016 by L*

**math**

The chance of a head occurring in a certain biased coin is twice that of the tail occurring if the coin tossed 5 times. What is the probability of at most 1 tail occuring in the 5 tossed?
*Monday, June 13, 2016 by Ability E.*

**math**

Is the relationship shown in the table proportional? If so, what is the ratio of dollars to months? | Months | Dollars | | 2 | 100 | | 3 | 150 | | 5 | 250 | | 8 | 400 | (a) proportional; $150 per month (b) proportional; $100 per month (c) proportional; $50 per month (d) not ...
*Sunday, June 12, 2016 by Yang*

**Math**

If a missile is launched from a station 300 metres above sea level with an initial velocity of 500 m/s what is the height of the missile after 4 seconds
*Sunday, June 12, 2016 by Michelle*

**math**

Tai, Tina, and Torri were the three representatives in a cross country race. Tai finished the race in middle position, Tina finished after Tai, in 19th position and Tori finished in 28th. How many schools took part in the race?
*Sunday, June 12, 2016 by I still don't understand how to do this*

**Math for Business Analysis**

Let f (x, y) = xy + 5x + 4y model the utility a consumer feels based on the number of the number of cups of coffee, x, and the number of donuts, y, consumed on a given Thursday. Find the absolute maximum and absolute minimum values of f(x, y) over the triangular region with ...
*Sunday, June 12, 2016 by lex.*

**math**

Start with the basic function f(x)=2x. If you have an initial value of 1, then you end up with the following iterations. • f (1) = 2 ⋅1 =2 • f 2 (1) = 2 ⋅2 ⋅1 =4 • f 3 (1) = 2 ⋅ 2 ⋅ 2 ⋅1 = 8
1. If you continue this ...
*Sunday, June 12, 2016 by leandra*

**math**

√11 real, whole, integer rational or irrational
*Sunday, June 12, 2016 by dianne*

**math**

Is -46 real, whole, rational, integer or irrational & why
*Sunday, June 12, 2016 by dianne*

**Math**

The ratio of girls to boys is 7:8. the class has 30 students total. How many boys are there???!!! How do I do this ????!!!
*Sunday, June 12, 2016 by Anonymous *

**Math**

A tortoise and a hare race against each other. A hare runs at a constant speed of 36 km per hour for exactly ten seconds and waits for the tortoise to catch up. If the tortoise takes two hours to move 1 km, how long will it take to catch up?
*Sunday, June 12, 2016 by I still don't understand how to do this*

**math and science**

A space shuttle with a mass of 4,06 X 10kg,orbits earth at a height of 720km above the surface of the earth.calculate the gravitational force experienced by the shuttle
*Sunday, June 12, 2016 by Tsuu-mani*

**math**

the angle of elevation of the top of a radio mast from a point 53m from its base on level ground is 61degre. Find the height of the mast to the nearest 5m.
*Sunday, June 12, 2016 by melvin*

**Math**

The measure of one angle is 38 degrees less than the measure of its supplement. What is the measure of each angle?
*Sunday, June 12, 2016 by Jason*

**Math**

The measure of one angle is 7 times the measure of its complement. What is the measure of each angle?
*Sunday, June 12, 2016 by Shaun*

**math 9**

The number of boys is 3 more than double the girls. Together, there are 54 students in total. How many boys and girls are there?
*Sunday, June 12, 2016 by Anonymous*

**Math**

if sinx=cosx Then cosecx=????
*Sunday, June 12, 2016 by Dilip*

**math**

Tai, Tina, and Torri were the three representatives in a cross country race. Tai finished the race in middle position, Tina finished after Tai, in 19th position and Tori finished in 28th. How many schools took part in the race?
*Sunday, June 12, 2016 by Anonymous*

**math**

A tortoise and a hare race against each other. A hare runs at a constant speed of 36 km per hour for exactly ten seconds and waits for the tortoise to catch up. If the tortoise takes two hours to move 1 km, how long will it take to catch up?
*Sunday, June 12, 2016 by Anonymous*

**math**

What's kinetic energy in electron volts of triply ion of iron which has been accelerated from rest through a potential difference of 100v?
*Sunday, June 12, 2016 by abdalla *

**Math**

Can someone please explain this to me in detail? Thank you! To make 4 3/5 cakes, 2/3 pounds of flour is needed. How much flour is needed to make one cake?
*Sunday, June 12, 2016 by Jasmine*

**math**

solve the equation:3(x-2)^2-12=0
*Sunday, June 12, 2016 by Andrea*

**math**

If cos A=3/5,cos B =4/5,find the value of cos(A-B)/2
*Sunday, June 12, 2016 by eku*

**math**

If sinA=0.8& A lies between 90Â°and 180Â° find the value of tan1/2A
*Sunday, June 12, 2016 by eku*

**math**

construct two different triangles ABC.In which AB=5cm and angle C=54 degrees. find angles A1 and A2
*Sunday, June 12, 2016 by emeka ogbodo*

**math**

A boat sails 'm' miles upstream at the rate of 'r' miles per hour. The rate of the stream is 's' miles per hour. How long will it take the boat to return to its starting point?
*Sunday, June 12, 2016 by bev*

**Math**

Can someone please explain this to me in detail? Thank you! To make 4 3/5 cakes, 2/3 pounds of flour is needed. How much flour is needed to make one cake?
*Sunday, June 12, 2016 by Jasmine*

**math.**

in 3 banquets/bouquets a man placed 39 rose, 10 tulip in each. how many flowers did he use?
*Sunday, June 12, 2016 by mohammad ali*

**Math**

Write 1.5 billion to indian place value system.
*Saturday, June 11, 2016 by Raj*

**Math**

Let A be the set of primes less than 6 and B be the set of positive odd numbers less than 6. How many different sums of the form a + b are possible, if a is in A and b is in B?
*Saturday, June 11, 2016 by Xtian Zhou*

**Math**

In a sine function, can you replace the phase shift by changing the period? Why or why not?
*Saturday, June 11, 2016 by A*

**Math**

Linda scores 72 on her first algebra test. What must she score on the second test if her average score on both tests is to be 81
*Saturday, June 11, 2016 by Kiara *

**math**

if an asset has a depreciable basis of $150,000 and a ten-year life, what will be the amount of amortization for each of the ten years?
*Saturday, June 11, 2016 by Sherri*

**math**

A box contains 7 green, 4 red and 3 blue marbles. One marble is pulled from the box without looking, what is the probability of not getting a red marble? Work:7+4+3=14 4/14=2/7 Or 7+3=10 4/10=2/5 Which one is correct.
*Saturday, June 11, 2016 by keyli*

**Math (pre-celc 12)**

I'm not sure how to solve this equation algebraically: 38=20sin((2pi(t))/36)+22 I know the answer should be about 5.3 since I graphed it. I can get as far as removing 22 from the right and then removing 20 from the right by dividing by 20. To get 0.8=sin((2pi(t))/36)
*Saturday, June 11, 2016 by Jana*

**Math**

"Carlos started at sea level, climbed a cliff to a height of 14 m, then dived 19 m. Find the level at which his dive ended."
*Saturday, June 11, 2016 by Ali*

**math**

The base of a right angled triangle measure 48 cm and its hypotenuse measure 50 cm . find the area of the triangle
*Saturday, June 11, 2016 by abhishek*

**math**

a man travelled xhrs at 5km/hr and yhrs at 8km/hr .Distance travelled altogether is 20km. find x and y if the average speed for the journey is 7km/hr
*Saturday, June 11, 2016 by kayode*

**math**

a boat sails north for 3km, then sails 1,5km west. how far is the boat from its starting position? correct to two decimal
*Saturday, June 11, 2016 by Hope*

**math**

Mercy must obtain an average mark of at least 85 to get an A grade in her mathematics examination,out of the four examinations she obtained 80,85 and 82 in the first three. Find the mark she must obtain on the fourth examination of to enable her get an A grade.
*Saturday, June 11, 2016 by Glory *

**Math**

The angles of a quadrilateral are in the ratio 2:3:7. The mean of these angle is 64. Find all the four angles?
*Saturday, June 11, 2016 by Shubham *

**Math**

What is the smallest member of the solution set of x^2=30-13x?
*Saturday, June 11, 2016 by Habiba*

**Math**

The denominator of a fraction exceeds by 4 from the numerator if we increase both by 3 the fraction become 4/3 what will be the original fraction
*Saturday, June 11, 2016 by Harsh*

**math**

i am 6 digit number. all my digits are same and their sum is 8 more than 10. who am i?
*Saturday, June 11, 2016 by tanpreet *

**Math - Year 10 - Simult. equations**

Find the point(s) of intersection between the following: x^2 + y^2 = 25 3x + 4y = 0
*Saturday, June 11, 2016 by Jams*

**Math**

What order do these go in from least to greatest? 2/3 0.2 70% 5/8 33% 0.82
*Saturday, June 11, 2016 by Leoni*

**Math**

(a+b)whole square = ?
*Saturday, June 11, 2016 by Aman*

**math**

If I am traveling at 60mph and you are traveling at 30mph how many minutes until we meet?
*Friday, June 10, 2016 by david*

**Math**

How much will be the value of a house that was bought 9 years ago? X Y 0 100,000 1 105,000 2 107,000 3 110,000 4 115,000 5 120,000 6 123,000 7 126,000 8 ? 9 ? 10 ?
*Friday, June 10, 2016 by Ronlecia*

**Math**

X is partly constant and partly varies with y.when y=3,x=7
*Friday, June 10, 2016 by Ademiju ayokunle*

**Math Practice Worksheets**

Hi! My son Zakeri is having trouble with polynomials. Could yp please provide some worksheets for my son Zakeri to work on? He's been having trouble with polynomials lately. Thank you! Nancy and Daniel Hamilton (Zakeri's parents)
*Friday, June 10, 2016 by Nancy Hamilton (Zakeri H's Mom)*

**Math**

What does the variable a equal when a = 4.9? 3a + 6a = ?
*Friday, June 10, 2016 by Tairdelbach_R*

**math**

I do't understand what this is. how do I solve or simplify 100^12/100^8? Am I supposed to add the exponent or multiply them?
*Friday, June 10, 2016 by me...*

**Math (pre-celc 12)**

Write an expression for the x-values where the the maximum in the expression occurs: y=6cos((2pi/14)x)-2 I know that the maximum occurs every 14 units if you start at 0,0. I'm stuck after that.
*Friday, June 10, 2016 by Jana*

**math**

Mr. Bobby bought 50 shares at $60, and 2 months later purchased 25 shares a $56.at what price should he purchase 25 additional shares in order to have an average price $58 per share?
*Friday, June 10, 2016 by bev*

**math (significant digits)**

(3.x10^-2) + (0.2) round to significant digits required
*Friday, June 10, 2016 by AMELIA*

**math**

In a course a student's final exam is weighted as heavily as his mid term exam.if a student receives a score of 84 on his final exam 90 on his midterm,what is the average for the course?
*Friday, June 10, 2016 by tish*

**Math/Dosage Calculations**

Hey, can someone please check my work for me? I've done this over and over but cannot find my mistake. Am I just supposed to round??? Calculate intake in mL, assume a glass is 8 oz: 6oz. Jello 5oz of Tomato Soup 1/4qt Iced Tea 1/2 glass of water The answer is 700. This is ...
*Friday, June 10, 2016 by Anonymous*

**Math**

Please explain to me how to figure out the answers to these questions because I got them all wrong. Don't worry there's only 2.. 1.You roll a number cube 20 times. The number 4 is rolled 8 times. What is the experimental probability of rolling a 4? It's either A. ...
*Friday, June 10, 2016 by Myah*

**math**

Marta’s math textbook weighs mc017-1.jpg of a pound less than 4 times the weight of the book she is reading for her language arts class. If the weight of the math textbook is mc017-2.jpg pounds, which shows the correct equation and value of x, the weight of Marta’s ...
*Friday, June 10, 2016 by david*

**Math**

If the third term of a gp =4 than product of first five term=
*Friday, June 10, 2016 by Abhi*

**Math**

A cylindrical water tank is 70cm in diameter to begin with it is full of water a leak starts in the bottom so that it looses 10 litres every 1 hour how long will it take for the water level to fall by 20cm.
*Friday, June 10, 2016 by Daniel*

**Math**

The midnight temperature of Delhi in the month of December was 100C If dropped by 40C in the next three hours.What was the temperature after 3hours
*Friday, June 10, 2016 by Priya*

**math**

Find the values of m and n if y^4 + my^3 + 2y^2- 3y + n is divisible by y^2-1
*Friday, June 10, 2016 by sim*

**Math: Inverse Function (Plz help)**

Find the Inverse function of f: f(x)=8+[square root of(8+x)] f^(-1)(x)=_______, x>8
*Thursday, June 9, 2016 by Jennifer*

**analytical math**

rony who is sixteen years old, is four times as old as her brother. How old will Mary be when he is twice as old as her brother?
*Thursday, June 9, 2016 by nehal*

**Math**

Triangles ABC and DEF are similar. Find side AC. Round your answer to the nearest tenth. cm
*Thursday, June 9, 2016 by Irma*

**Math**

Please explain this to me because im really stumped here!!: The probability of winning a game is 20%. If you play 20 times, how many times should you expect to win? A.4 times B.10 times C.16 times PLEASE HELP!!!!
*Thursday, June 9, 2016 by Myah*

**Math**

What are the next three terms in the sequence? -6, 5, 16, 27 Answers: 38, 49, 60 37, 47, 57 36, 45, 54 36, 46, 57
*Thursday, June 9, 2016 by Hannah Montana*

**math**

Jordan has three bills in her wallet. They might be any combination of $5,$10, and/or $20 bills. a) Fill in the organized list to show ll the possible combination of bills.
*Thursday, June 9, 2016 by nawab*

**MATH**

Create a rational function with a linear binomial in both the numerator and denominator. Part 1. Graph your function using technology. Include the horizontal and vertical asymptotes and the x- and y-intercepts on your graph. Label the asymptotes and intercepts. Part 2. Show ...
*Thursday, June 9, 2016 by MOM*

**math**

what is the surface area of cardboard box? l= 4cm w= 5cm h=10cm
*Thursday, June 9, 2016 by sunil *

**Math**

Create a rational function with a linear binomial in both the numerator and denominator. Part 1. Graph your function using technology. Include the horizontal and vertical asymptotes and the x- and y-intercepts on your graph. Label the asymptotes and intercepts. Part 2. Show ...
*Thursday, June 9, 2016 by John*

**Math**

You shop for bikes and find 7 types priced at 119 139 149 179 189 199 and 209. you want to buy the 189 bike would you use the mean median and mode to convince your parents that this is a reasonable price for a bike? explain Please help me
*Thursday, June 9, 2016 by PLEASE HELP*

**math**

Create a quadratic polynomial function f(x) and a linear binomial in the form (x − a). Part 1. Show all work using long division to divide your polynomial by the binomial. Part 2. Show all work to evaluate f(a) using the function you created. Part 3. Use complete ...
*Thursday, June 9, 2016 by ted*

**Math(Please Help Assignment Due)**

Consider the following pattern involving fractions: 15/20=3/4, 15-3/20-4=12/16=3/4 18/15=6/5, 18-6/15-5=12/10=6/5 1.) Make a conjecture about the pattern. Show that the conjecture is true for another example. 2.) Explain how inductive reasoning can be used to support the ...
*Thursday, June 9, 2016 by Jenny*

**Math**

What must be true about the solution to this system of equations? x+4y+9z = -96 -2y+9z = -47 z = -7 a) The solution will describe the intersection point(s) of the 3 graphs. b) The value of z must be -7. c) The solutions will have values for x, y, and z. d) All of the above ...
*Thursday, June 9, 2016 by David *

**Math**

Elizabeth claims that she has proven that 7=5with the following: 7(a+b)-5(a+b)=7c-5c 7a+7b-5a-5b=7c-5c 7a+7b-7c=5a+5b-5c 7(a+b-c)/(a+b-c) = 5(a+b-c)/(a+b-c) 7=5 1.) Explain why this is an invalid proof.
*Thursday, June 9, 2016 by Jenny*

**math**

find the height of a pyramid whose square base measures 30yd on each side and whose slant height it 45yd?
*Thursday, June 9, 2016 by clark*

**Math**

How do you find the height of a scalene triangle when the base and the two side lengths are different? The measurements are base - 12 cm one side - 8 cm the other side - 7 cm I need the height to find out the area
*Thursday, June 9, 2016 by Bianca*

**math**

At the malt shop a large chocolate shake takes 8/9 of a pint of milk. If the medium shake takes 1/7 the amount of a large, how much does the medium shake take?
*Thursday, June 9, 2016 by Cindy*

**math**

Air expands from 2 m3 to 3 m3 at constant pressure. If the initial temperature is 60 degrees Celsius, what is the final temperature?
*Thursday, June 9, 2016 by Anonymous*

**math**

An ellipse and a hyperbola have the same foci, $A$ and $B$, and intersect at four points. The ellipse has major axis 50, and minor axis 40. The hyperbola has conjugate axis of length 20. Let $P$ be a point on both the hyperbola and ellipse. What is $PA \cdot PB$?
*Thursday, June 9, 2016 by clache*

**math**

The figure below shows the ellipse $\frac{(x-20)^2}{20}+\frac{(y-16)^2}{16}=2016$. [asy] defaultpen(linewidth(0.7)); pair c=(20,16); real dist = 30; real a = sqrt(2016*20),b=sqrt(2016*16); xaxis("x",c.x-a-dist,c.x+a+3*dist,EndArrow); yaxis("y"...
*Thursday, June 9, 2016 by rui rui*

**math**

How many pairs of positive integers $(x,y)$ are there which lie below the graph of the hyperbola $xy = 16$?
*Thursday, June 9, 2016 by rui rui*

**Math/Dosage Calculations**

Hey there, still working through that packet. Could someone help explain how I would solve this problem? The answer in the packet says it's 420mL. Thanks in advance! Calculate the fluid intake in mL for the meal. Assume a glass holds 8 oz. 1/3 glass orange juice 1/2pt of ...
*Thursday, June 9, 2016 by Anonymous*

**math/algebra**

The surface area of a rectangular prism is SA=2lw+2wh+2lh. The volume of a rectangular prism is V=lwh. Write an expression for the ration of surface area to volume.
*Thursday, June 9, 2016 by james*

**math**

1. Marry works in a factory that prudes 1,000 telephones each day when 30 telephones were sampled it was found that 9 were defective estimate how Manny telephones are defective each day. 314 telephones 284 telephones 300 telephones*** 310 telephones 2. A ice cream shop offers ...
*Thursday, June 9, 2016 by sam*

**math**

Find an equivalent ratio for the ratio 6 to 7.
*Thursday, June 9, 2016 by Anonymous*

**Math**

What is the answer to My hundreds digit is the last odd number. Five less than my hundreds digits is my ones and my tens digit is to more than my ones digit. My thousands digit is three less than my hundreds digit.
*Thursday, June 9, 2016 by Jasmine*

**Math**

In a class of 100 students, 40 offer Biology and 10 offer Chemistry and Biology .10 offer Physics and Chemistry , and 30 offer Physic and Biology . Each student offer at least one of the three subjects. The number of students who offer Biology is equal to those who offer ...
*Thursday, June 9, 2016 by Delson*

**Math**

A cylinder of curved surface area 1250m² is formed from a rectangular metallic sheet .Find the dimensions of the rectangular sheet I its length is double its breadth?
*Thursday, June 9, 2016 by Rohit*

**Math**

A metallic pipe is 0.7 cm thick .Inner radius of the pipe is 3.5 cm and length is 5dm .Find it's total surface area?
*Thursday, June 9, 2016 by Raghu*

**Math - Year 10 - Simult. Equations**

Q) find the point of intersection y = 3x x^2 + y^2 = 10
*Thursday, June 9, 2016 by Anonymous*

**regents**

I have to take the Regents exam, but there are a great number of math regents exams. If I am in 11th grade,which one should I take??plz help , this is urgent! !😣
*Wednesday, June 8, 2016 by Paul*

**math**

Can your x-axis values be percents in a bar graph?
*Wednesday, June 8, 2016 by Anonymous*

**Math Makes Sense Grade 3**

Colour the spinner red and blue. Make it so that when the pointer is spun, the probability of landing on blue is 1 in 4. What is the probability of landing on red?
*Wednesday, June 8, 2016 by Sandra*

**Math Makes Sense Grade 3**

Make a spinner with 3 colours. I chose green, red and blue. Colour it so that when the pointer is spun, the probability of landing on the green is 2 in 4. What is the probability of landing on either of the other 2 colours.
*Wednesday, June 8, 2016 by Sandra*

**Math**

Determine the intervals over which the function is increasing, decreasing, or constant. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) f(x) = 4x + 2, x ≤ −2 x^2 − 10, x > −2
*Wednesday, June 8, 2016 by Amy Hiddleston*

**Math**

A cone-shaped pile of sawdust has a base diameter of 40 feet, and is 15 feet tall. Find the volume of the sawdust pile. Round your answer to the nearest hundredth if necessary. Use 3.14
*Wednesday, June 8, 2016 by Lauren*