Saturday
December 10, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
evaluate the expression 3(y+1)for y=2 a.6 b.9 c.7 d.8
Tuesday, October 27, 2015 by mouse

11 Grade Math-Based Physics
Could someone check these practice test questions over for me? I'm not good at physics at all, so I would love an explanation. 1. A projectile is shot an angle into the air. Neglecting air resistance... 1a. It's horizontal acceleration is a) 9.8 m/s^2 b) 0.0 m/s^2 *** ...
Tuesday, October 27, 2015 by Ana

Math
karen collects 6/7 quart of rainwater. she uses 1/2 of the water to clean her bicycle and uses the remaining water equally for 3 houseplants. What volume of water does she use for each houseplant?
Tuesday, October 27, 2015 by Debbie

Math
Pencils are sold in packages of 5.explain why you need 6 packages in order to have enough for 27 students.
Tuesday, October 27, 2015 by Anonymous

math
find a 3 digit number less than 500 in which the 3 different digits are add up to 8.
Tuesday, October 27, 2015 by maida

math
I'm so lost I have no idea. Please help Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. graph of line going through ordered pairs (0, 300) and (450, 0)
Tuesday, October 27, 2015 by Lucy

Math 3
what is the local max and local min of y= 1/21(x-3)(x-3)(x+7)
Tuesday, October 27, 2015 by Nagwa

math
Find the values of the trigonometric function cot -8/17 sin: sec: tan: cot: I know you use a Pythagorean Identity, sin^2t + cos^2t=1 I got 64/289 for the first one for example and it was wrong.
Monday, October 26, 2015 by john

8th grade math
Angle ABC=62° and angle ACB=66° what is the angle DAB?
Monday, October 26, 2015 by elijah

Math
How much would you pay for a pint of milk if you bought 5 gallons of milk for $28?
Monday, October 26, 2015 by Alana

math
Nils has 60 mins for 20 question test. It take 20 min for her to answer 12 questions. What is the greatest amount of time she can take for each of the 8 remaining questions
Monday, October 26, 2015 by Felicity

math
If 3 people walk around a track, one takes 6 min, one takes 9 min and one takes 12 min. How long til they meet at the start line?
Monday, October 26, 2015 by megan

Math
I don't know if my answer for this question is correct but can you please check? 1.) Between which pair of numbers does the square root of 15 lie? Do without using a calculator. A.) 3.7 and 3.8 B.) 3.8 and 3.9 C.) 3.9 and 4.0 D.) 14 and 16 I think the answer to this might ...
Monday, October 26, 2015 by Karina

Math
(3p-pq^3)2pq= I got: 6p^2q - 2p^2q4 Can it be simplified more?
Monday, October 26, 2015 by Katie

Math
When the cylinder of the answer diameter 60cm rolls at a speed of 5 revolutions per second, moving speed (s What m / min Is Just C pi of the cylindrical the (Ï€) is calculated as 3.14, the first decimal place Please rounding.
Monday, October 26, 2015 by Tara

math
a scooter is priced between $1000 and $2000. its price is a multiple of 10. All the digits in the price, except for the thousands digit, are even numbers. The value of the hundreds digit is 30 times the value of the tens digit. what is the price of the scooter?
Monday, October 26, 2015 by henry

math
2/5 + 1/5 = Remember that the denominator always stays the same no matter what.
Monday, October 26, 2015 by jacquelynn

math
4×93=
Monday, October 26, 2015 by jacquelynn

math
3 apples plus 2 pears cost .78 but 2 apples and 3 pears cost .82. What is the cost of 1 apple and 1 pear?
Monday, October 26, 2015 by Homework

math
7. Professors’ Salaries The average salary for a Queens College full professor is $85,900. If the average salaries are normally distributed with a standard deviation of $11,000, find these probabilities. a. 0.3557 (TI: 0.3547) a. The professor makes more than $90,000. b. ...
Monday, October 26, 2015 by Alma

math
3×78=
Monday, October 26, 2015 by jacquelynn

Math
blank 569 dived by 6 is about 400. what number could blank? Explain
Monday, October 26, 2015 by Matteo

math
600,000=how many ten millons
Monday, October 26, 2015 by queen

Math please check
p= -3; q=2 2q(p+q)+3pq I got -22
Monday, October 26, 2015 by Katie

Math please check my work
4x(3-y) - 2x + xy I got 64. Is that right?
Monday, October 26, 2015 by Katie

Math
6 m of soil containing 50% clay was mixed into 10 m of soil containing 10% clay. What is the clay content of the mixture? How much salt should be added to 80 pounds of a 5 % salt solutio to make it a 24% salt solution Thank you so much!
Monday, October 26, 2015 by Marina

Math
Please help me answer this question At the Cats galore cat show, 1/2 cat were Siamese, 1/6 were Persian, 1/5 were Abyssinian and 4 cats were tabby. how many cats were at the show? write an equation and solve it Thank you BJ
Monday, October 26, 2015 by BJ

Math
Please help me understading this question "a cycling club has 2/3 boys, 2/9 girls and 3 adults. how many are in club? write an equation and solve" Thank you for your input
Monday, October 26, 2015 by BJ

math
The effective rate of a $25,000 non-interest-bearing simple discount 10%, 90-day note is
Monday, October 26, 2015 by Anonymous

Math
Sophia downloaded 592 vacation pictures. Of the pictures, 63% show the beach. About how many pictures show the beach? Use a rate per 100 to estimate.
Monday, October 26, 2015 by Dylasia

Pathways to Math Literacy
Mike is putting up a snow fence on the west side of his property. He needs a post at each end to hold the fence up and would like to put a post in every 8 feet. If he uses 25 posts for his fence, how wide is the west side of his property?
Monday, October 26, 2015 by Jane

Math
72 oz=? lbs First I divided 16 from 72 and got 5 remainder 2. Then I turned it into a mixed fraction as: 5 2/6 When I got this I was truly stumped. Either I did the steps wrong or I am missing a step or I just don't know what to do next. HELP ME PLEASE:) :(
Monday, October 26, 2015 by Wifi

Math
The value of a certain rare stamp is 160% of its value three years ago. If the stamp was worth $220 then, what is it worth today?
Monday, October 26, 2015 by Cecilia

5th grade math
The cost of 5 similar digital cameras and 3 similar video cameras is $3213, Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he pay?
Monday, October 26, 2015 by Samantha

math
A right rectangular pyramid is shown. The height of the pyramid is 12 units. The length and width of the base are 6 units and 8 units, as shown. Point F is the midpoint of line segment AB. Point E is directly above the center of rectangle ABCD.
Monday, October 26, 2015 by ter

math
What distance did the car travel if we used 11 gallons of gas to travel the mountains? use a tape diagram to show how you found the miles traveled. I don't know how to solve this question
Monday, October 26, 2015 by lauren

Math
An industrial dishwasher takes 4.8 litres of water to wash a full load of dishes. If you were to wash full loads, how much water would you use? I am very confused on how to begin figuring this math problem out. Can you assist?
Monday, October 26, 2015 by Alena

Math
5) a baby frog weighed 4.3 grams. After a month it was 3.37 times as heavy, how much did the frog weigh after a month? Answer: 14.491 6) A full container of industrial cleaning solution had 4.74 litres of liquid. If the container was only 0.9 full, how many litres are in there...
Monday, October 26, 2015 by Alena

Math
It has four side and all opposite side are parallel and has no right angles
Monday, October 26, 2015 by chris

Math
At the zoo the polar bears are fed 0.77 bucket of fish a day. The Penguins are fed 0.8 that amount. How much of a bucket are the Penguins fed? Answer: 0.616 bucket of fish 2) On Monday, George picked up 0.5 of a kilogram of cans to recycle. On Tuesday he picked up 0.5 that ...
Monday, October 26, 2015 by Alena

Math
Mason is an architect and is drawing the plans for a room addition for a client. If the shape of the room is a cube, what is the volume in cubic feet if the length is 23 ft? A.529 B.1,024 C.12,167 D.32, 768 Is the answer A?
Monday, October 26, 2015 by Its Me

Math
Gillian has completed 25% of a bicycle race. If the race is 40 miles long, how many miles has she traveled so far?
Monday, October 26, 2015 by Amy

math
Mrs. Crawford has invested $ 6,000 at 3% interest. How much additional money should she invest at 8% interest so that the total income will be 4% of her total investment? Scott asked you to make 10 gal. of fruit punch that contains 85% fruit juice by mixing together some Sweet...
Monday, October 26, 2015 by Marina

English Check please
The High School Step Team Karla’s cousin Jade urged her to join the step team. “This afternoon you should definitely try out!” Jade suggested after the final bell rang. “I know she wants the best for me,” Karla thought to herself, “but I’m ...
Monday, October 26, 2015 by sammy

Math
Can someone please check my work? Write the slope-intercept (y = mx +b) form of the equation from the information given. 1. Slope = ½ and b = -3 Y=1/2-3 2. Slope equals 2 and the line goes through the point (-1, 3) Y=2x+5 3. The line goes through the points (8,5) and (9...
Monday, October 26, 2015 by Abby

Math 1350
When Mike sorts his marbles, he notices that if he put them in groups of 5, he has one left over. When he sorts them in groups of 7, he also has one left over, but in groups of 6, he has none left over. What is the smallest number of marbles that he could have?
Monday, October 26, 2015 by Ne Ne

Math 1350
In driving from town A to town D, you pass through town B and then through town C. It is twice as far as from A to b as from B to C, and 10 miles more from C to D than from B to C. If it is 58 miles from A to D, how far is it from town A to C?
Monday, October 26, 2015 by Ne Ne

Math 1350
One rectangular table seats three people along each side and two people are seated at each end. The tables are place end-to-end in one long line. Draw a series of pictures that will help you find a pattern to predict how many tables will be needed to seat exactly 172 people. ...
Monday, October 26, 2015 by Ne Ne

math 1350
Ted has twice as many baseball cards as Bob. Reggie has five less than Ted. How many baseball cards does Ted have if Reggie and Bob have 82 cards altogether? Explain the process you used to solve this problem.
Monday, October 26, 2015 by Ne Ne

math
Write the slope-intercept (y = mx + b) form of the equation from the information given. The line goes through the points (1/2, 3/2) and (-1/4, 5/4) I really don't know how to do this problem, can someone please show me how?
Monday, October 26, 2015 by Abby

Math
Find the light turns and the expression Y +1.2 Y +1.2 Z A(y and 1.2y B(1.2y and 1.2z C(y and 1.2z D(y 1.2y and 1.2z
Monday, October 26, 2015 by Jirehn

math
If the ladder reaches a height of 12 meters up the wall and has its foot 5meter away from it so can you please help me to calculate the length of the ladder
Monday, October 26, 2015 by prodigy

math
n a triange the longest side is 2 more than the shortest side. the third side is half of the sum of the longest side, then express the perimeter in polynomial form
Monday, October 26, 2015 by srilekha

Math
The french club is sponsoring a bake sale. IF its goal is to raise at least $140m how many pastries mut it sell at $3.50 each to meet that goal? Write and solve an inequality 3.50p ≥ 140: p ≥ 490 140p ≥3.50; p≥ 40***** 3.50p ≥ 140; p≥136.5 3...
Monday, October 26, 2015 by Took

Math
The french club is sponsoring a bake sale. IF its goal is to raise at least $140m how many pastries mut it sell at $3.50 each to meet that goal? Writ and solve an inequality
Monday, October 26, 2015 by Took

Math Geometry
Gery wants to fence a rectangular field whose area is 1200 sq.m. He has only 100 meters of fencing so he decided to fence only the three side of the rectangle letting the wall be the fourth side. How wide the rectangle should be?
Monday, October 26, 2015 by Zijay

math
Write the slope-intercept (y = mx + b) form of the equation from the information given. The line goes through the points (-1, -7) and (-8, -2) Can someone please help me?
Monday, October 26, 2015 by Abby

math
Write the slope-intercept (y = mx + b) form of the equation from the information given. 3. The line goes through the points (8,5) and (9, 6) ~ Can someone please help me? I really don't know how to do this one
Monday, October 26, 2015 by Abby

math
Write the slope-intercept (y = mx + b) form of the equation from the information given. ~~Slope equals 2 and the line goes through the point (-1, 3) Can someone please show me how to do this?
Monday, October 26, 2015 by Abby

Math
2/3= 12/x x=18 x=12 x=36 x=8 I think the answer is 36
Monday, October 26, 2015 by Lost

math
the external dimensions of a closed box are 8cm by 5cm by 4cm. given that the thickness of the wood of which it is made is 0.5cm, find the volume of the wood used to make it.
Monday, October 26, 2015 by sabrina

Math- word prolems
You need to do the fencing of two side by side areas with 102 meters of wood fencing. What is the maximum area that you will be able to enclose?
Monday, October 26, 2015 by Sam

math
Bass: The bass in Clear Lake have weights that are normally distributed with a mean of 2.3 pounds and a standard deviation of 0.6 pounds. (a) If you catch one random bass from Clear Lake, find the probability that it weighs less than 1 pound? Round your answer to 4 decimal ...
Monday, October 26, 2015 by robin

Math word problem
Please, i need help. How much greater than -11.6 is -5.43
Monday, October 26, 2015 by Billy

Math
1. Cystic fibrosis (CF), a life-threatening lung disease, is caused from the inheritance of a recessive allele from both parents for the CFTR gene. In order for this disease to manifest itself, one needs to be homozygous recessive for this autosomal gene. According to the ...
Sunday, October 25, 2015 by Bella

math
The sides of the outside square in the figure are 8 inches long. The corners of the next smaller square are at the midpoints of the outside square, and so on. a.) find the sum of the perimeters of the first three squares. Imagine that the process of nesting squares continues ...
Sunday, October 25, 2015 by Jennifer

Math
David is three years older than John.In 8years time, John age will be 7/8 of David's age.find their age.
Sunday, October 25, 2015 by PHOSUDO

math
Let L be the line with parametric equations x = −8+2t y = 4+3t z = −4 Find the vector equation for a line that passes through the point P=(−2, 1, 3) and intersects L at a point that is distance 2 from the point Q=(−8, 4, −4). Note that there are ...
Sunday, October 25, 2015 by Excel

Math
How many 7 digit even numbers can be formed using all of the digits 0,1,1,2,3,4,5? The answer is 1320, but how do I get there? Thanks for the help!!
Sunday, October 25, 2015 by Luise

Math
How many 7 digit even numbers can be formed using all of the digits 0,1,1,2,3,4? The answer is 1320. I tried 7!/2! but I know its supposed to be even, so it's not right to do 2!. How do I get to 1320?
Sunday, October 25, 2015 by Luise

Math- word prolems
Making a cylinder is costing your company $2/in^2 for top and bottom and $6/in^2 for the body(side). If the cylinder is to have 166.25oz volume, what are the most economical cylinder that you can make and what will be the cost of making it.
Sunday, October 25, 2015 by Sam

Math Word Problem
Can someone please check this one, this is a word problem, not a greater than or less question. How much greater than -10.4 is -6.52? -10.4 - -6.52 = -3.88 is this correct?
Sunday, October 25, 2015 by Lou

math
earn $15 an hour. following weeks: 2 hours 3 hours 4 hours. whats the function
Sunday, October 25, 2015 by hhh

Math
Find the solution. 1. sqrt2 sin x + 1 = 0 My ans: x = 5pi/4 + 2npi and 7pi/4 + 2npi 2. sec x - 2 = 0 My ans: x = pi/3 + 2npi and 5pi/3 + 2npi
Sunday, October 25, 2015 by Anonymous

genetics math
2. Genotypes of leopard frogs from a population in central Kansas were determined for a locus (M) that encodes the enzyme malate dehydrogenase. The following numbers of genotypes were observed: Total sample studied = 107. Genotype Number M1M1 20 M1M2 45 M2M2 42 a.) Calculate ...
Sunday, October 25, 2015 by Bella

Is this right Ms Sue ???
Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search *** search for more than one topic narrow down your topic by combining words
Sunday, October 25, 2015 by lilly

please check my answers Ms Sue!!!
Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search search for more than one topic narrow down your topic by combining words**
Sunday, October 25, 2015 by lilly

please help Ms Sue !!!!
Using NOT when searching allows you to ______? search for subtraction math games eliminate unwanted topics to narrow down for search search for more than one topic narrow down your topic by combining words
Sunday, October 25, 2015 by lilly

math 1350
Lori has an equal number of dimes, nickels, and pennies in her coin collection. If the total value of the coins is $12.16, how many of each coin does she have?
Sunday, October 25, 2015 by Anonymous

Math
A man walks 3 miles due east, then 4 miles due north, then five miles due east. How far is he from his starting point?
Sunday, October 25, 2015 by Annie

Math
Write a function rule that represents the sentence. C is 8 more than half of n. c=8+n/2****** c+8=n/2 c+8=1/2+n c=n/2-8
Sunday, October 25, 2015 by Mike

math
find the sum of the sequence 41+42+43+44+117
Sunday, October 25, 2015 by john

math
choose all values of x that would make the inequality true and how? 2/3 or 0.6 or 3/6 or 59% or 58x10_2
Sunday, October 25, 2015 by monica

Math
Find the exact value of the trig expression given that sin u = -5/13 and cos v = -4/5. u and v are in the second quadrant. cos(v - u)
Sunday, October 25, 2015 by Anonymous

Math
The elevation of an underwater cave is -120 feet relative to sea level. A submarine descends to the cave. The submarine’s rate of change in elevation is no greater than -12 feet per second. How long will it take to reach the cave?
Sunday, October 25, 2015 by jiskha

Math Answer Check
1. Find the exact value of the expression. cos pi/16 * cos 3pi/16 - sin pi/16 * sin 3pi/16 My ans: sqrt2/2 2. Find the exact value of the sin of the angle. 17pi/12 = 7pi/6 + pi/4 My ans: (sqrt2 - sqrt6)/4
Sunday, October 25, 2015 by Anonymous

MATH
A person who is 6 feet tall is standing 117 feet from the base of a tree, and the tree casts a 130 foot shadow. The person's shadow is 13 feet in length. What is the height of the tree?
Sunday, October 25, 2015 by CHEY

Math
I need help with this: 0 x -8 (it is 0 multiplied by negative 8) The answer is came up with is 0 is this correct?
Sunday, October 25, 2015 by Lou

Math
Is this answer correct to this problem: -7.4 exceeds -11 by what number? answer I came up with is -3.6 is this correct?
Sunday, October 25, 2015 by Mike

math
How can I show a bar model for this problem? Naomi Macy and Sebastian have 234 stamps in all. Naomi gives 16 stamps to Macy and 24 stamps to Sebastian. Naomi then has 3 times as many stamps as Macy, and Macy has twice as many stamps as Sebastian. how many stamps does Naomi ...
Sunday, October 25, 2015 by jill

math
How much greater than -10.4 is -6.52? -10.4 - -6.52 = -3.88 is this correct?
Sunday, October 25, 2015 by meg

math
Math Questions . Help please Which of the following is the number of milliliters in 2 gallons? (Note: 1 gallon = 4.4 liters; 1 liter= 1,000 milliliters) A. 440 B. 880 C. 4,400 D. 8,800 i think its D The hypotenuse (side C) of a triangle is 13 inches long. Which of the ...
Sunday, October 25, 2015 by jenny

math
Mr Joyce invested $ 25,000, part at 4% interest and the remainder at 7% interest. The total income he received from his investment was $1,450. How much did he invest at each interest rate? Thank you
Sunday, October 25, 2015 by Marina

Math
There are 90 students in a classroom. How many relationships are there in this classroom? Show how you got this. Hint: Consider this 2 students in the class would be 1 relationship, whereas 7 students in the class would yield 21 relationships. What I think: I'm super stuck...
Sunday, October 25, 2015 by Anonymous

math
the electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about 20000v.what is the speed of the electrons?(ignore relativistic effects).electron rest mass is 9.11 X 10^-31kg and electron charge is 1.6 x 10^-19
Sunday, October 25, 2015 by Emmanuel

math
one-half of the students in a city school plan to enter liberal arts colleges and one-third of the students plan to go to junior college.The remaining 300 pupils expect to seek permanent employment after graduation.How many students are there in this school?
Sunday, October 25, 2015 by Linda

Math
The Schulich Society for Anarchy, Collectivism and Economic Equality has only 12 members, with surnames: Adams, Bezos, Chung, Dirar, Efrim, Faruk, Gomes, Habib, Ikeda, Jones, Kenny, and Laval Probably the only orderly aspect of this motley crew is the fact that there names ...
Sunday, October 25, 2015 by Jigney Pathak

math
Which of the following is the number of milliliters in 2 gallons? (Note: 1 gallon = 4.4 liters; 1 liter= 1,000 milliliters) A. 440 B. 880 C. 4,400 D. 8,800 i think its D The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs of measurements could...
Sunday, October 25, 2015 by manny

math
A consumer makes a $400 down payment on a television that costs $1 , 570. Which of the following is the number of months it will take to pay off the television with monthly payments of $100? (Assume that no interest is owed.) A. 16 B. 15 C. 12 D. 11 i think its B A student'...
Sunday, October 25, 2015 by manny

math
17. Which of the following is the correct simplified fractional representation of 0.03030? A. 303/1,000 B. 303/10,000 C. 3,030/1,000 D. 3,030/10,000 i think its B
Sunday, October 25, 2015 by manny

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