Tuesday
July 26, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
Seven students took a quiz. Four of these students received a score above 85 percent. Students who received at least an 85 percent go a sticker. What percent of the students ( rounded to the nearest full percentage number) received a sticker? I came up with 60%. Is that ...
Monday, May 23, 2016 by Carol Kelly

Math
PLS HELP ASAP! 1. Complete the function table. Then write a rule for the function. Input: -3,-2,-1,0,1 Output:_,-4_,_,-1
Monday, May 23, 2016 by I-like_anime!!!

Math (Vectors)
Consider the vector v=-5.7i-7.2j Approximate to the nearest tenth of degree the angle vector v makes with the positive horizontal direction?
Monday, May 23, 2016 by Ray

math
A swimming pool in the shape of a right rectangular prism measures 24 feet by 16 feet and is 4.5 feet deep across the entire pool. What is the volume of the swimming pool in cubic feet? --- cubic feet
Monday, May 23, 2016 by jasmine

math
Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. -3y^2 + y = -6
Monday, May 23, 2016 by lana davis

math hurry
1. x^9/x^2 a.x^11 b.x^7 c.7 d.x^5 2. h^14/h^5 a.h^-9 b.1/h^9 c.h^19 d.h^9 3. 4^4/4^6 a.-16 b.16 c.1/16 d.-1/16 4. 5^0 a.0 b.5 c.1 d.-5 6.-2r(8r+5) a.-16r^2+5 b.-16r^2+10 c.-16r^2+10r d.-16r^2-10 7.2a(a^2+4a) a.2a^2+6a^2 b.2a^3+8a^2 c.2a+6a d.2a^3+6a^2 8.(3y)(3y-2) a. 9y^2-6 b...
Monday, May 23, 2016 by please help

Math Can you help me?
A football player gains 7 yards , loses 4 yards , and gained 12 yards. write his gains and losses as integers. If he started at zero where does he end up?
Monday, May 23, 2016 by Hmm.

Math
Amy baked some chocolate and vanilla muffins. She gave away 3/5 of the chocolate muffins and 1/7 of the vanilla muffins. She gave exactly half of the total number of muffins. In the end, she was left with 24 more chocolate muffins than vanilla muffins. How many chocolate ...
Monday, May 23, 2016 by Shermaine

math
1. x^9/x^2 a.x^11 b.x^7 c.7 d.x^5 2. h^14/h^5 a.h^-9 b.1/h^9 c.h^19 d.h^9 3. 4^4/4^6 a.-16 b.16 c.1/16 d.-1/16 4. 5^0 a.0 b.5 c.1 d.-5 6.-2r(8r+5) a.-16r^2+5 b.-16r^2+10 c.-16r^2+10r d.-16r^2-10 7.2a(a^2+4a) a.2a^2+6a^2 b.2a^3+8a^2 c.2a+6a d.2a^3+6a^2 8.(3y)(3y-2) a. 9y^2-6 b...
Monday, May 23, 2016 by please help

math
certain superstores will often price match or even beat a competitor's price by 10%.the function g(x)=0.90x represents the sale price of a piece of merchandise at such a superstore.the function f(x)=0.13x represents the HST owed on a purchase with a selling price of x ...
Monday, May 23, 2016 by steve

Math
If i pick a number anywhere from 1 to 1000 at random, what is the probability that the number is divisible by either 2 or 5?
Monday, May 23, 2016 by Lilly

Math
Jasper's friend Tina challenges him to a game of Unders and Overs. He's never played the game before, so Tina explains the rules: "You bet what the total value will be when I roll two dice. Then, I roll the dice and their total determines whether you win money off...
Monday, May 23, 2016 by Jennie

Math; Solve by Graphing
Which description best describes the solution to the following system of equations? y = −x + 4 y = 3x + 3 Line y = −x + 4 intersects the line y = 3x + 3. Lines y = −x + 4 and y = 3x + 3 intersect the x-axis. Lines y = −x + 4 and y = 3x + 3 intersect the...
Monday, May 23, 2016 by Pickle

Math
Find the complement and supplement of the angle shown. The picture is of an acute angle that is measured 52 degrees. How am I supposed to find the complement and supplement of the angle? Please help.
Monday, May 23, 2016 by Please Help

Math
A rectangular aquarium has a length of 18 inches, a width of 8 inches; and a height of 12 inches. What is the maximum volume of water that the aquarium can hold? Use V = lwh
Monday, May 23, 2016 by Tayler

Math
There are 44 rabbits in a mushroom-shaped house. 8 of them are moving out soon. What fraction of the rabbits are moving?
Monday, May 23, 2016 by Vaishnavi

Math
Jenny has 12 kids. 2/6 of the kids are girls. How many daughters does Jenny have?
Monday, May 23, 2016 by Vaishnavi

Math
1200 soldiers in a fort had enough food for 28 days. After 4 days, some soilders were sent to another fort and thus, the food lasted for 38 more days. How many soilders left the fort?
Monday, May 23, 2016 by Devleena

Math
A farm slaughtered 25 chickens per month. It was 5/12 of the total number of chickens. How many chickens will survive each month?
Monday, May 23, 2016 by Vaishnavi

math
The Third angle of a Isosceles triangle is 16 degree less than the sum of the two equal angles. Find the three angles of the triangle
Monday, May 23, 2016 by Anonymous

math
the cost to manufacture a product is proportional to the quantity produced,
Monday, May 23, 2016 by Anonymous

Math
At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 100 meters and a diameter of 50 meters. It takes the wheel seven minutes to make one revolution. If you start your ride at the midline and the ferris wheel rotates counter clockwise, how ...
Monday, May 23, 2016 by Kori

Math
In a standard deck of 52 cards whats the probability of getting a 2 or a 7 of diamonds.
Sunday, May 22, 2016 by Aubrey T.

Geometry,Math
Is my data correct? For package design I will use a cylinder. The Equation for the surface area of a cylinder is A = 2 π r h + 2 π r² . The equation for the volume of a cylinder is V = π r² h. I have chosen a cylinder for my cereal box because I ...
Sunday, May 22, 2016 by Help!

Math
A farmer has dogs and chickens running around in his backyard. There are a total of 36 animals, and the farmer counts a total of 56 legs. The farmer can use a system of equations to determine how many of each animal there are. He claims that one of the equations in the system ...
Sunday, May 22, 2016 by Steve

Math
Value has a bag that contains,9 blue marbles and , 13 yellow marbles she selects a marble at random,and then without replacing the first one selects another marble at random what is the probability that value selects a blue marble and then a yellow marble to round to the ...
Sunday, May 22, 2016 by Anonymous

Math
A farmer has dogs and chickens running around in his backyard. There are a total of 36 animals, and the farmer counts a total of 56 legs. The farmer can use a system of equations to determine how many of each animal there are. He claims that one of the equations in the system ...
Sunday, May 22, 2016 by Steve

Math
Form the perfect square trinomial in the process of completing the square. What is the value of c? x^2 + 3x + c = 7/4 + c c =
Sunday, May 22, 2016 by Sara

math
Two mechanical shafts are joined together at their ends. Together their total is 18 and 2/9 ft. if one shaft is 13 and 4/7 ft long , how long must the other shaft be?
Sunday, May 22, 2016 by Kiana

Geometry/Math
What Formula would I use to calculate how much my cardboard box with a surface area of 1578cm and a volume of 3078 cm would cost if cardboard was $0.05 per square inch.
Sunday, May 22, 2016 by Help!

Math
A farmer has dogs and chickens running around in his backyard. There are a total of 36 animals, and the farmer counts a total of 56 legs. The farmer can use a system of equations to determine how many of each animal there are. He claims that one of the equations in the system ...
Sunday, May 22, 2016 by Steve

Math
Check my answers please? There are only 10 The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. Side BC is a secant intersecting the circle at point X: The figure shows a circle with points A and B on it...
Sunday, May 22, 2016 by Caitlin

Math
If you picked one card from a standard deck of 52 playing cards, what would be the probability of picking the ace of spades?
Sunday, May 22, 2016 by Michlle

Math
This year Grandma's age and Mother's age are the same but with the digits reversed. One year ago, Grandma was twice as old as Mother. How old are Grandma and Mother today?
Sunday, May 22, 2016 by John baltista

Easy Math
Draw a line with 3 distinct points on it. Label each with a different letter. How many different rays can you name using only three given points? a. 8 b. 6 c. 4 d. 2 Not quite sure. Could the answer possibly be four (c.)?
Sunday, May 22, 2016 by Please Help

math
The measure of angle A is 124 degrees. What is the correct classification for angle A? a. acute b. right c. obtuse d. straight I'm pretty sure it's c. Right?
Sunday, May 22, 2016 by Please Help

Math
the walls and ceiling of a hotel room need to painted. The floor is 20-foot square and the ceiling is 8 feet high. What is the surface area of the walls and ceiling to be painted? Ignore any doors or windows
Sunday, May 22, 2016 by Derp

Math
Janet uses 3 feet of ribbon to decorate each pillow. The ribbon comes in 225-foot rolls. How many pillows will she be able to decorate with one roll of ribbon? Will there be anything ribbon left over?
Sunday, May 22, 2016 by Johan

Math (pre-celc 12)
Factor 2x^4-62x^2+60x I get: 2x(x^3-31x+30) 2x(x-30)(x^2-1) 2x(x-30)(x-1)(x+1) But that's wrong. It should be (I think): 2x(x-1)(x-5)(x+6) Please show me where I went wrong.
Sunday, May 22, 2016 by Jana

Math
Six apples cost as much as four pears. Each pear costs $4 more than each Apple. What is the cost of one pear?
Sunday, May 22, 2016 by Brian

Math
suppose that when your friend was born your friends parents deposited $4000 in an account paying 4.1% interest compounded quarterly. what will the account balance be after 15 years?
Sunday, May 22, 2016 by Chris

Math
Janet uses 3 feet of ribbon to decorate each pillow. The ribbon comes in 225-foot rolls. How many pillows will she be able to decorate with one roll of ribbon? Will there be anything ribbon left over?
Sunday, May 22, 2016 by Johan

math
Nicole swims 6 times as many laps as Evan. What multiplication equation compares the laps Nicole and Evan swim?
Sunday, May 22, 2016 by Bryce

math
There are 34 hats at a shop. There are 2 times as many scarves as hats at the shop. How many scarves are at the shop?
Sunday, May 22, 2016 by Amari

math
The equation y = 55x + 85 describes the amount of money a plumber charges, where y is the total amount he charges and x is the number of hours he works.
Sunday, May 22, 2016 by brenda

Math
By what percent will the product of two numbers decrease if one of them is decreased by 25% and the other is decreased by 50%?
Sunday, May 22, 2016 by lillian

math
* A cat and a dog have a race. The cat’s strides are 30% shorter than the dog’s but it makes 30% more strides than the dog. Which of them will win the race?"
Sunday, May 22, 2016 by lillian

math
rozana,a fisherwomen throws her net in a lake.the net falls in the lake when it is 2 meters above the ground at 5 meters per second at angle of 60 degrees.(assume that the acceleration due to gravity is -9.8m/s^2).find the vector function of the net at the starting position ...
Sunday, May 22, 2016 by arini sofia

math
rozana,a fisherwomen throws her net in a lake.the net falls in the lake when it is 2 meters above the ground at 5 meters per second at angle of 60 degrees.(assume that the acceleration due to gravity is -9.8m/s^2).find the vector function of the net at the starting position ...
Sunday, May 22, 2016 by arini sofia

Math
Aaron's father is nine times as old as he is. One year ago, he was two years more than eleven as old as Aaron. Find Aaron's present age.
Sunday, May 22, 2016 by Anonymous

math or algebra
F2088nd the next three terms of the sequence. -2, -12, -72, 432. Possibilities are: 1. -1728 -6912 -27,648 2. -1728 -10,368 -62,208 3. -2592 -10,368 -41,472 4. -2,592 -15,552 -93,312 I have tried multiplying positive numbers times the negative but can't make the numbers ...
Sunday, May 22, 2016 by james

math (check answer)
You want to know the number of students in your school that have a January birthday. You survey the students in your math class. Three students have a January birthday, and 32 do not. So, you conclude that about 8.6% of the students in your school have a January birthday. ...
Saturday, May 21, 2016 by MAX

math
Which sample is better for making a prediction? Why? Sample A: A random sample of 10 customers leaving a store Sample B: A random sample of 100 customers leaving a store i think maybe sample a would be more better for just a prediction because it's just 10 people. but then...
Saturday, May 21, 2016 by MAX

math
You flip a coin and you roll a number cube. What is the probability that you flip heads and roll a number less than 3?
Saturday, May 21, 2016 by betty

math
You roll a number cube twice. Find the probability of the event in fraction form. -Rolling a 4 then an even number -Rolling a 3 then a 3 -Rolling a number less than 1 and then a number less than 2
Saturday, May 21, 2016 by Sami

Math
Use three rectangles of equal width and the left endpoint approximation method to estimate the area enclosed by the x-axis, the lines x = 1 and x = 4, and the curve y = x^(1/2). Could you please help me understand how to do this? Thanks in advance!
Saturday, May 21, 2016 by Johnny

Math
An area is bounded by the x-axis and the parabola y = 16 - x^2. Use four rectangles of equal width and the midpoint approximation method to estimate the bounded area. Could you please show me how to work out this problem? Thanks!
Saturday, May 21, 2016 by Johnny

Math
If w^3 = 1 and w != 1, then compute (1 - w + w^2)(1 + w - w^2).
Saturday, May 21, 2016 by Katie

Math
Say that you (or your parents) are purchasing a used car for $22,350. The sales tax is 7.5%, the down payment is $1,200.00, and you have an average credit rating. If your first payment is $475.25, how much of the payment goes toward the principal? The average rating is 5.85. ...
Saturday, May 21, 2016 by Sara

Math
The sum of the ages of a father and a his son is 72 years. After 2 years, father will be 4 years less than 3 times the age of his son. Find their present ages.
Saturday, May 21, 2016 by Koyal

Math
It takes 15 minutes to fill a large water tank. However, the tank has a small leak that would completely drain the tank in 4 hours. How long will it take to fill the tank if the leak is not plugged?
Saturday, May 21, 2016 by LY

math
Each time Kristine gets paid, she spends $20 and saves the rest. If the amount Kristine earns is represented by x and the amount she saves is represented by y, which graph models her savings?
Saturday, May 21, 2016 by desire

Math
Round 3.74166 to the nearest tenth of a gram
Saturday, May 21, 2016 by Layla

math
The distances travelled in a successive seconds are in AP. It travels 1.5 cm in the first second and 1.9 cm in the next second.How long did it take to cover the total distance ?
Saturday, May 21, 2016 by fouad

math
At an Oregon fiber-manufacturing facility, an analyst estimates that the weekly number of pounds of acetate fibers that can be produced is given by the function : z=f(x,y)=1250ln(yx^2)+45(y^2+x)(x^3 -2y)-(xy)^1/2 where z= the weekly # of pounds of acetate fiber produced x=the...
Saturday, May 21, 2016 by ambia

math
the height of a building is 1543 feet. How long will it take for an object to fall to the ground ground from the top. Use formula d=16t^2
Saturday, May 21, 2016 by Anonymous

math
what is the circumference of a circle with a diameter of 50 mm
Saturday, May 21, 2016 by Marc

Math
What will be a pair of integers whose product is -36 and difference is 15?
Saturday, May 21, 2016 by Tarang sachdeva

math
Fred cuts a 12-inch piece of rope.THEN he cuts a second piece of rope that is 3/2 longer than the first piece. is the second piece shorter or longer than the first piece?
Saturday, May 21, 2016 by aleece

math
a+b=76 a-b=38 a/g=?
Saturday, May 21, 2016 by charlie

logarithm math-need help!!!!
5logxbase4+48log4basex=x/8 help me plz step
Saturday, May 21, 2016 by dam

math
please help a five -digit number is made from the digits 6,6,3,3, and 3. write two numbers in which the places of the two 6,s are separated by a factor of 1000? I still did not get a answer and i don,t understand this. Thank you
Saturday, May 21, 2016 by aleece

Math
What is 9 minus 3 decided by 1third plus 1 equals
Saturday, May 21, 2016 by Jerry

math
HELP me find the angles from the following equation (4cotx+3)(cotx-1) = 0
Saturday, May 21, 2016 by beracah

math - analytic geometry
the sum of the distances of p(x,y) from (0 -3) and (0 3) is equal to 10.
Saturday, May 21, 2016 by Anonymous

math
You randomly guess the answers to two questions on a multiple-choice test. Each question has three choices: A, B, and C. a. What is the probability that you guess the correct answers to both questions? b. Suppose you can eliminate one of the choices for each question. How does...
Saturday, May 21, 2016 by Kaylan

math
Stock worth $40 a share dropped in value by 10% on Monday. Then, it dropped again by $10 the next Tuesday and, finally, increased by 45% the following Friday. What was the final price of a share?
Friday, May 20, 2016 by PLEASE HELP!!

math
please help a five -digit number is made from the digits 6,6,3,3, and 3. write two numbers in which the places of the two 6,s are separated by a factor of 1000?
Friday, May 20, 2016 by aleece

math
which of these numbers when rounded to the nearest hundredth is 0.56 0.566 0.556 0.563 0.554 0.555 0.565
Friday, May 20, 2016 by aleece

math
a five digit number from the digits 6, 6,3,3, and 3 write two numbers in which the places of the two sixes are separated by a factor of 1000?
Friday, May 20, 2016 by aleece

math
miss sue did not understand your answer.
Friday, May 20, 2016 by aleece

math
what is the solution to the system of equations ? x=y-3 x 3y=13 A. (1,4) B.(4,1) C.(7,4) D. (2.5,5.5) please help my best answer is b
Friday, May 20, 2016 by Anastasia

MATH REPOST
Consider the net of a triangular prism where each unit on the coordinate plane represents four feet. If a sheet of plywood measures 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the prism? (NEED HELP T ,ASAP !)
Friday, May 20, 2016 by Q&J Wiiffeyy

MATH REPOST
Consider that point A is located at (x, y) in Quadrant I of the coordinate plane. In which quadrant is point B with coordinates (-x, y) located? A) Quadrant I B) Quadrant II C) Quadrant III D) Quadrant IV (HAVING TROUBLENEED HELP FAST )
Friday, May 20, 2016 by Q&J Wiiffeyy

math
a recipe calls for 3/4 cup of tomato sauce to make one batch of spaghetti sauce. Freddie plans to make 3 1/2 batches of spaghetti sauce. how much sauce will he need?
Friday, May 20, 2016 by aleece

math
x=y-3 x 3y=13 A. (1,4) B.(4,1) C.(7,4) D. (2.5,5.5) please help my best answer is b
Friday, May 20, 2016 by Anastasia

math
fred cuts a 12-inch piece of rope. then he cuts a second piece of rope that is 3/2 longer than the first piece. is the second piece shorter or longer than the first piece?
Friday, May 20, 2016 by aleece

HELP ME ! DESPRATE MATH STUDENT !!
1)Suppose x = 2y - 7. What is x, if y = 5? A) 0 B) 1 C) 3 D) 5 2)Consider the net of a triangular prism where each unit on the coordinate plane represents four feet. If a sheet of plywood measures 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the ...
Friday, May 20, 2016 by Q&J Wiiffeyy

math
find the genearal solution of the following equation 4csc^2x-7=cotx
Friday, May 20, 2016 by beracah

MATH HELP ASAP
Evaluate if x = -3 3x - 4 Help ???
Friday, May 20, 2016 by Q&J Wiiffeyy

HELP ME ! DESPRATE MATH STUDENT !!
Which values from the set satisfy the inequality? { 0, 3, 5, 6, 9 } 3x - 4 ¡Ü 15 Help ? Anyone?
Friday, May 20, 2016 by Q&J Wiiffeyy

math
distributive property 4(11-5)=
Friday, May 20, 2016 by victoria

math
How many grams of water are needed to reduce 100g of a 30% acid solution to a 10% acid solution?
Friday, May 20, 2016 by PLEASE HELP :)

math
By what percent will a fraction change if its numerator is increased by 60% and its denominator is decreased by 20%?
Friday, May 20, 2016 by PLEASE HELP :)

math
1 2/3 % of it is 4.75 what i the equation to solve this
Friday, May 20, 2016 by PLEASE HELP :)

math
A designer enlarged both the length and the width of a rectangular carpet by 50 percent. The new carpet was too large so the designer was asked to reduce its length and its width by 20 percent. By what percent was the area of the final carpet design greater than the area of ...
Friday, May 20, 2016 by PLEASE HELP :)

math
It takes 15 electricians 24 days to wire a new housing subdivision. How many days would 18 electricians take to do the same job?
Friday, May 20, 2016 by PLEASE HELP :)

math
An employee earns $195 for 15 hours of work. Assuming he is paid by the hour, how much will the employee earn in 8 hours?
Friday, May 20, 2016 by PLEASE HELP :)

math
Leah has 28 more marbles than Dan. 1/3 of Leah’s marbles is equal to 4/5 of Dan’s marbles. Find the number of marbles that Leah has.
Friday, May 20, 2016 by PLEASE HELP :)

math
The ratio of the number of Victor’s tools to the number of Ilya’s tools is 5:2. Victor has 42 more tools than Ilya. How many tools should Victor give to Ilya so that the ratio of the number of Victor’s tools to the number of Ilya’s tools is 3:4?
Friday, May 20, 2016 by PLEASE HELP :)

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