Wednesday
February 22, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

math
Please help!!!!! You earn $240 for your first paycheck. You pay 22% of it in taxes. You decide to put 40% of the remaining money into savings. How much money will you have left to spend? -The amount you pay in taxes is? -The remaining after taxes is? -Write an expression to ...
Tuesday, January 17, 2017 by jay

Just checking Math-Absolute Value
The equation for "the distance from x to -4 is less than 12" is |x-4|<12? I'm just checking my answers.
Tuesday, January 17, 2017 by Susan

Math (Semicircle)(Pre-calc)
goo.gl/photos/e6Ks3v4Qqj177Nun6 The graph below is made from two semicircles. The domain of the function in the graph is [−8,8] [-8,8] . Find a piecewise formula for the function f(x) f(x). Help please, I already on my last attempt and any help is greatly appreciated!
Tuesday, January 17, 2017 by Fel

Math
Raj gets a 1.5 mile head start and runs at a rate of 4.5 miles per hour. Jacinda's progress is represented by a graph that goes through the points (1,10), (2,20), and (3,30). How long will Jacinda need to run to catch up with Raj?
Tuesday, January 17, 2017 by Leon

Math
Becky used 5 teaspoons of mustard to make 32 ounces of potato salad how many teaspoons of mustard does she need to make 4 pounds of potato salad
Tuesday, January 17, 2017 by Kaili

Math
Store A offers a 60% discount. Store B has a sale for 2/3 off. Which store gives the greater discount? Explain.
Tuesday, January 17, 2017 by Kaity

math
the flight path of a firework is modelled by the function h(t)=-5(t-5)^2+127
Tuesday, January 17, 2017 by em

Math
Mr.Rivas bought a can of paint.He used 3/8 of it to paint a bookshelf. He used 1/4 of it to paint a wagon. He used some of it to paint a birdhouse and has 1/8 of paint left. How much did he use for the birdhouse
Tuesday, January 17, 2017 by Allie

Math
For an art exhibit, Craig has to choose 3 ceramic mugs out of the 7 that he made over the summer. In how many ways can he arrange these 3 mugs in a row?
Tuesday, January 17, 2017 by Anonymous

Math
Jefff find some bugs. He finds 10 fewer grasshoppers than crickets. He find 5 fewer crickets than ladybugs. If Jeff finds 5 grasshoppers, how many ladybugs does Jeff find? How many crickets does he finding
Tuesday, January 17, 2017 by Anonymous

Math
A line has parametric equations x=7t-2 and y=-4+3t. What is the slope of the line representing the direct relationship between x and y?
Tuesday, January 17, 2017 by Rachel

math
Does the equation y+4 = 0 have a slope and why or why not?
Tuesday, January 17, 2017 by Kelley

Math
To get to her friend's house, Sandra walked along the sidewalk in her neighborhood. If she walked 100 yards at a direction of 45° northeast and then turned to walk 400 yards straight east, how many yards and in what direction would she need to walk if she wanted to walk ...
Tuesday, January 17, 2017 by Tessa

Math
need help in FRACTION 1. (5 1/2 + 2 3/4) - 3 1/2 (11/2 + 11/4) -3 1/2 (66/8)-3 1/2 (33/4 - 9/2) 15/4 = 3 3/4 IS IT CORRECT
Tuesday, January 17, 2017 by sai tej

math
6. You are given a sheet of cardboard that is 8.0 in. x 11.0 in. How many full circles with a diameter of 3.0 inches can you cut from the cardboard? What is the percentage of waste if the
Tuesday, January 17, 2017 by sarah

Math
An oil spill spreads 25 square meters every 1/6 of an hour. How much area does the oil spill in two hours?
Tuesday, January 17, 2017 by Amy

Math
the perimeter of a rectangle is 108 cm. if the length of the rectangle is 5 tikes the width what are the demensions of the rectangle
Tuesday, January 17, 2017 by Isabel

Math
I don't understand this. on a blueprint, the length of a wall is 5 centimeters. if the actual length of the wall is 15 feet, what is the scale of the blueprint?
Tuesday, January 17, 2017 by PLEASE HELP

Math
A cart full of packages weighing 180 pounds is rolling down a ramp 12 feet long at an incline of 25° (the force applied by gravity is equal to the weight of the package). Find the work done by gravity as the cart moves the length of the ramp. Assume that friction isn't a factor.
Tuesday, January 17, 2017 by Elise

math
there are 32 students 12% got an A.How many of them got A's.i need help converting this percentage to a whole number please help
Tuesday, January 17, 2017 by lucy

Math
Can someone please help me with my open needed question Solve the system by substitution -X-y-z= -8 -4+4y+5z =7 2X+2z= 4
Tuesday, January 17, 2017 by Amanda

Math
If there are 24 students in the classroom and 3/6 are boys. How many boys are in the class
Tuesday, January 17, 2017 by Anonymous

math
A sales man bought some plates at 50naira each if he sold all of them for 600naira and make a profit of 20% from transaction how many plates did he buy
Tuesday, January 17, 2017 by Oluwafemi

math
Find the number of terms in an AP given that its first and last terms are A and 37A respectively and that its common difference is 4A?
Tuesday, January 17, 2017 by bella

math
arctan(y)=x+c To solve for y, would it just be: y=tan(x+c)?
Tuesday, January 17, 2017 by carl

Math
How many cc of a 20% solution of a sulfuric acid must be mixed with 100 coffee a 50% solution to make a 25% solution of sulfuric acid
Tuesday, January 17, 2017 by Aqnonymous

math
does anyone have some of the answers of at least know some of the answers for the algebra 1 a part 1 semester exam
Tuesday, January 17, 2017 by gracelynn2938

Math
Sway has 3 red roses in her bouquet for every 5 yellow roses. The bouquet has two dozen red and yellow roses. How many are yellow roses?
Tuesday, January 17, 2017 by Amy

Math help please??!
Which answer describes the transformation of g(x)=log4(x−2)+4 from the parent function f(x)=log4x? It is the graph of f(x) shifted 2 units right and 4 units up. It is the graph of f(x) shifted 2 units left and 4 units down. It is the graph of f(x) shifted 4 units left and 2 ...
Tuesday, January 17, 2017 by Sandra

Math (help if you know the full test)
1) Write a ratio and a percent for the shaded area. An image of a square divided evenly into 16 smaller squares is shown. 5 of the smaller squares are shaded grey. A) 1/5, 25% B) 5/16, 31.25 C) 1/4, 20% D) 1/4, 25%
Tuesday, January 17, 2017 by Jasmine

Math
Find the components of vector u with a magnitude of 10 and a direction angle of ∅=54° Help??
Tuesday, January 17, 2017 by Rachel

Math
Sam is hoisting an engine form a pickup truck he is fixing. He hands hoist using 3 rafters on ceiling. Measures the angle the hoist makes at the baseto be 85 degrees and the length across the of chain across rafters to be 80 inches. One length of chain hanging down from ...
Tuesday, January 17, 2017 by Eric

Math
Shantanu's age is 3 years more than Tanya's age.The sum of their ages is 27 years.Find their ages.
Tuesday, January 17, 2017 by Anjali

math
You have 10.0 ml of a 5.0% NaCl solution. To this you add 5.00ml of a 2.0% NaCl solution. What is the molarity of NaCl in this final mixture?
Tuesday, January 17, 2017 by chidera

Math
If 4 balls out of 6 reach the boundary in a cricket match then the average number of balls reaching the boundary in selected 10 overs of the match?
Tuesday, January 17, 2017 by AnnA

math
How much pure acid must be added to 2 liters of a 10% solution of acid to obtain a mixture that is 20% acid?
Tuesday, January 17, 2017 by ken

math
from the top of a vertical mast 150m high,two huts on the same ground level are observed. One due east and the other due west of the mast. Their angles of depression are 60° and 45° respectively. Find the distance between the huts. Solutuons with diagram
Tuesday, January 17, 2017 by Folorunsho

Math
The sides of two squares are 4cm and 6cm. Find the ratio of their areas and their perimeters.
Tuesday, January 17, 2017 by Anonymous

math
what is the possible number of outcomes in choosing a book to read from 7 fiction and 9 non fiction books?
Tuesday, January 17, 2017 by A

DPS ( Math)
Student of standard X to plant 300 trees in a rows, to form an isosceles triangle. The number of trees in the successive rows increasing by one from the starts by 1 tree to the base. How many trees the student have to plant in the row which forms the base of the triangle ?
Tuesday, January 17, 2017 by Harshuman

math
Two number are in the ratio 4:7 if the smallest is 36 what is the largest number?
Tuesday, January 17, 2017 by john

math
At the end of a journey 7/9 of the fuel tank of a car had been used and the remaining was 14 litres. How much fuel was in the tank at the beginning of the journey.
Tuesday, January 17, 2017 by olumofin Emma

math;);)
The diameter of a spherical grapefruit is 6.0 inches. An amateur fruit slicer misses its center by one inch. What is the radius of the circular slice?
Monday, January 16, 2017 by Anonymous

Math
If the 15th and 16th term of an arithmetic sequence are 99 and 92 respectively then the 5th term is? Studying for math final and I cannot figure this out
Monday, January 16, 2017 by chris

math
In what time will $800 amount to $860 @ 3 3/4% simple interest? I=860-800
Monday, January 16, 2017 by ann

math
A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3? is it 1/7 or 1/6?
Monday, January 16, 2017 by Maya

Math
Fruit smoothie five dollars coupon for 40% off find the price of each product after a discount is applied
Monday, January 16, 2017 by Olivia

Math
Color pencils are six dollars and the discount rate is 5% find the price of each product after a discount is applied
Monday, January 16, 2017 by Olivia

Math
If the shadow of a 45 foot building is 60 feet long what time of day is it?
Monday, January 16, 2017 by Lola

Math
find f'(x) find the slope of the graph of f a x=2 and x=4 find the equations of the tangent lines at x=2 and x=4 and find the value(s) of x where the tangent line is horizontal. f(x)=2x^2+8x I found that f'(x)=4x+8 and that the slopes were 16 and 24 and the equations were y=...
Monday, January 16, 2017 by John

Math
A force act on a body for 0•5sec and changes its momentum from 16kg. Calculate the 1-magnitude of the force 2-impulse on the ball
Monday, January 16, 2017 by Lubnah

Math
Nick pulled pizza out of the oven and cut it into four equivalent pieces he ate two of them.His sister came in and cut one of the remaining pieces into three smaller equivalent pieces she ate two of the small pieces .what fraction of the pizza did each of them eat?what ...
Monday, January 16, 2017 by Deha

math
Enzo is 7 years younger than Ezra.Five years later,Ezra will be twice as old as Enzo.Find their present ages
Monday, January 16, 2017 by bea

Math
It takes 2 hours to travel 30 miles by bike.how long will it take to travel 105 miles?
Monday, January 16, 2017 by Liz

College Math - Quantitative Reasoning
Hello, I could really use some help with this problem. If the national economy shrank at an annual rate of 7​% per year for three consecutive​ years, then the economy shrank by 21​% over the three​-year period. - Of course, I understand 7% would be 93. I have tried ...
Monday, January 16, 2017 by Emily

math sets
out of 320 students at a university,190 taking math,235 taking chemistry and 120 taking physics.125 are taking both chemistry and math,95 taking both chemistry AND PHYSIC,55 TAKING BOTH MATH AND PHYSICS.HOW MANY ARE TAKING ALL THE THREE SUBJECTS
Monday, January 16, 2017 by kelvin

Math
Kay wants to know the length of large pond on property. One stake is at 50m with an angle of 21 degrees. The 65m from the other end of the lake and the angle is 26 degrees. How long is pond?
Monday, January 16, 2017 by Stephanie

math
Here is the question: a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous height. Calculate the total distance travelled by the ball when it hits the ground for the fifth time? I know you need the n, ...
Monday, January 16, 2017 by zach

math
the battery lifetime is normally distributed for large samples with a standard deviation of 70 days. if 16% of the batteries have a lifetime of 850 or higher, what is the average battery life?
Monday, January 16, 2017 by courtney

Math
45 Over 180 *360
Monday, January 16, 2017 by valerie

Math
Airport control tower measures the distance to one plane taken off at 500m and distance to second plane coming for a landing at 1050m. If the angle between the lines of observation on radar screen is 86 degrees> how far apart are the two planes?
Monday, January 16, 2017 by Colin

Math
Two guy wires are attached to a cell tower. The first one is 15 ft long and at an angle of elevation on the ground of 55 degrees. The second wire is 22 ft long an angle of elevation on the ground of 63 degrees. Both wires secured same location on ground. How far apart the ...
Monday, January 16, 2017 by Brenda

math
The table shows the position of a cyclist. t (seconds) 0 1 2 3 4 5 s (meters) 0 1.4 5.4 10.8 17.4 24.6 (a) Find the average velocity for each time period. (i) [1, 3] 4.45 Incorrect: Your answer is incorrect. m/s (ii) [2, 3] 5.5 Incorrect: Your answer is incorrect. m/s (iii) [3...
Monday, January 16, 2017 by warood

Math
A outdoor swimming pool is 3.0 m wide and 10.0 m long. If the weekly evaporation is 4.0 cm, how many laters of water must be added to the pool weekly if it does not rain.????
Monday, January 16, 2017 by Kathy

math
if n veries inversely as (y^2-1) and is equal to 24,when y=10. then find the value of n, when y=5
Monday, January 16, 2017 by Anonymous

Math
For events A and B it is known that p(A)=p(B) , p(A{intersection} B)=0.1 and p(A{union}B)=0.7 find p(A')?
Monday, January 16, 2017 by Ann

Math
How do you solve 6x + 12 + 2cosx = 0?
Monday, January 16, 2017 by Anonymous

Math
Suppose that the domain of discourse is the set {-2, -1, 0, 1, 2}. Express the following statements without using quantifiers, using only the connectives ¬, V, Λ. (a) ∃x P(x) (b) ∀x P(x) (c) ∃ ¬P(x) (d) ∀ ¬P(x) (e) ¬∃ P(x) (f) ¬∀ P(x)
Monday, January 16, 2017 by Winston

MATH
triangle PQR has vertices p(-3,5),q(7,3) and r(-1,-5) find the distance between PQ,QR and RP
Monday, January 16, 2017 by ADNAN

math
225-:15[60-:3|10+18-:(9-7)-14|+11] simplify
Monday, January 16, 2017 by yubraj

Math
Suppose that the domain of discourse is the set {-2, -1, 0, 1, 2}. Express the following statements without using quantifiers, using only the connectives ¬, V, Λ. (a) ∃x P(x) (b) ∀x P(x) (c) ∃ ¬P(x) (d) ∀ ¬P(x) (e) ¬∃ P(x) (f) ¬∀ P(x)
Monday, January 16, 2017 by Winston

Math
Susie spent 4 1/4 hours on Monday and 3 5/8 hours on Tuesday working on a history project. About how long did she spend working on the project?
Monday, January 16, 2017 by Mary

Math
A triangle has an angle that measures 105°. The other two angles are in a ratio of 7:8. What are the measures of those two angles?
Monday, January 16, 2017 by Gurwala

Math
8ax+4b = 4cx+d
Monday, January 16, 2017 by Safina Hashim

Math
a rectangle of board measures 21 m by 70 cm. Circular plates are to be cut from the board of diameter 14 cm. how many plates and board is left
Monday, January 16, 2017 by Anonymous

Math
a rectangle of board measures 21 m by 70 cm. Circular plates are to be cut from the board of diameter 14 cm. how many plates and board is left
Monday, January 16, 2017 by Tanya

Math (misleading graphs) (Statistics)
When constructing a graph showing the population of two​ countries, an illustrator draws two different people with heights proportional to the populations. Identify a way in which the graph might be misleading. What is the general name for such graphs that use drawings of ...
Monday, January 16, 2017 by Ray

Math
A marketing expert determines that sales of television sets an be increased by 3 sets per week for each $20 decrease in price. Weekly sales average 18 sets at $440 each. What price should be given in order to receive $10,800 in revenue?
Sunday, January 15, 2017 by Alex

math
After travelling 3/8 of the distance between two cities a bus is still 12km short of half way. How far apart are the two towns?
Sunday, January 15, 2017 by Anonymous

Math
Suppose that the domain of discourse is the set {-2, -1, 0, 1, 2}. Express the following statements without using quantifiers, using only the connectives ¬, V, Λ. (a) ∃x P(x) (b) ∀x P(x) (c) ∃ ¬P(x) (d) ∀ ¬P(x) (e) ¬∃ P(x) (f) ¬∀ P(x)
Sunday, January 15, 2017 by Winston

Math
On a certain map 1-1/16" = 300 miles. How many miles does 7/16" equal? Please clarify he process for solving his. What is he correct way to write the equation?
Sunday, January 15, 2017 by Persefoni

Math
In rod's family 3/4 of members wear glases. Of those who do not wear glasses, 1/3are male. What fraction of the family are males who do not wear glasses?
Sunday, January 15, 2017 by Alexa

math
Mark works 7 more hours per week than Thomas works. Write an algebraic expression to represent the amount of hours Mark works. Let h equal the amount of hours Thomas works.
Sunday, January 15, 2017 by mary jane

Math
What is the value of x after these statements if the starting value of x is 3. (a) If x^2 = 5^x then x := 25^x. (b) If x^2 > x and x^3 < 4x^2 then x := x+ 2. (c) If 4^x < x^4 or x^5 > 5^x then x := x^2. (d) If 5^x > 2^x xor x^2 < 11 then x := x + 8. (e) If x...
Sunday, January 15, 2017 by Winston

MATH
Lian uses 200 regular paces to walk around a square park.If one pace of Lian measures 40 cm,what is the measure of each side of the park?
Sunday, January 15, 2017 by GIAN

Math
A man sold an item for three thousand, six hundred naira if he had sold the item for two thousand naira what would have been his percentage loss.
Sunday, January 15, 2017 by Aderonke

Math
It takes a typist 3 hours to type 54 words. How many words can she type in (i)1hours (ii) 6 hours.
Sunday, January 15, 2017 by Aderonke

math
I am an array made with 24 tiles.My number of rows is 2 More than the number of tiles in each of my rows. How many rows do I have?
Sunday, January 15, 2017 by Ivory Wright

math
in a class containing 32 students, a student can either do Government or History or both. If 16 students do Government, 18 do History and 3 do none of the subjects, find how many do both
Sunday, January 15, 2017 by Chidinma

math,science, geography
What are three characteristics that mid-latitude cyclones have in with all cyclones?
Sunday, January 15, 2017 by Lindelani

Math
If the coefficient of sliding friction for steel on ice is 0.05, what force is required to keep a man weighing 150 lbs moving at constant speed along ice?
Sunday, January 15, 2017 by Angel

Math
Sheena is now one third of her father's age.Twelve years hence she will be half as old as her father.Find their present ages??
Sunday, January 15, 2017 by Anonymous

Math
Ten times increased by 12 is 32.find the number
Sunday, January 15, 2017 by Rica

math
Find the weight of led pipe is 3.5 m long if the external diameter of pipe is 2.4 cm and the thickness of led is 2mm and 1cm cube of the leg width is 4g
Sunday, January 15, 2017 by aman

Math
sum of the digits of a three-digit number is 20. If the hundreds and unit digits were interchanged, the resulting number is 297 less than the original. Find the number if the hundreds digit exceeds the tens digit by one.
Sunday, January 15, 2017 by Clare

Math- fractions
A cookie recipe calls for 3/4 cup of chocolate chips.Spencer has 2/3 cup. Does he have enough?If your answer is yes ,explain.If your answer is no, how much more does Spencer need?
Sunday, January 15, 2017 by Aisha

Math
I am still confused! Equation: C1V1=C2V2 Given: C1= 15 mM V1=? C2= 0.25 mM V2= 1mL (Do I just plug 1mL into the equation or do I have to convert to liter? Does mM mean mmol/1L?) I got ~17 microliter. Note: I must convert my answer to microliter. Math - bobpursley, Saturday, ...
Sunday, January 15, 2017 by Vivian

math
Plane A which contains an isosceles right triangle forms a dihedral angle of 60 degrees with another plane B. If the hypotenuse of the triangle lies in plane B and measures 8 in., find the distance from the vertex of the right angle to plane B, and the length of the projection...
Saturday, January 14, 2017 by nexan umbod

Math
Equation: C1V1=C2V2 Given: C1= 15 mM V1=? C2= 0.25 mM V2= 1mL (Do I just plug 1mL into the equation or do I have to convert to liter? Does mM mean mmol/1L?) I got ~17 microliter. Note: I must convert my answer to microliter.
Saturday, January 14, 2017 by Vivian

Math
A recipe for 2 dozen cookies calls for 1 1/3 cups of flour how much flour would be needed to make 5 dozen cookies
Saturday, January 14, 2017 by Fatima

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