Thursday

January 19, 2017
**Math**

1.76g of sodium hydroxide was added to 50cm^3 of 0.025mol.l^-1 nitric acid. Calculate the pH of the resulting solution.

*Friday, December 30, 2016 by Rey*

**Math Slope**

Jose the plumber charges $65 per hour to fix your plumbing. He uses the equation C=65H+100 to determine the charge of his services, C, after working h hours. What is the Y intercept? What does it represent in the context of the problem.

*Friday, December 30, 2016 by AJ*

**Math**

Austin pays $1.50 per day for high speed internet after paying the equipment fee of $35.00. Identify the constant of proportionality that relates his internet charges (y) to the number of days (x) he has internet.

*Friday, December 30, 2016 by Samuel*

**Math**

Spinner has 8 equal sides with 1, yellow, 3 red, 2 green and 2 blue...what is the probability of landing on yellow? What is the probability of NOT landing on yellow?

*Friday, December 30, 2016 by Me*

**Math**

Consider the following cubic curve: f(x)=âˆ’x3 âˆ’x2 +16x+16 1. Calculate fâ€²(x). 2. Calculate fâ€²â€²(x). 3. Find the x values such that f(x) = 0.

*Friday, December 30, 2016 by R*

**math**

Given that the roots of the equation 3x^2+x+2=0 are a and b, show that 27a^4=11a+10.

*Friday, December 30, 2016 by Thomas*

**MATH LIT,GEO,L/F,AGRICULTURE,ENGL,ZULU**

WHAT KIND OF JOB CAN I APPLY FOR?

*Friday, December 30, 2016 by THOBEKA*

**math**

A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle

*Friday, December 30, 2016 by donald*

**math**

Explain the difference between the expressions x-3 and 3-x answer

*Friday, December 30, 2016 by Katie Larson*

**math**

Tanishas mother buys 38 lemons. they know it takes 8 lemons to make 80 ounces of leomonade. Does Tanisha need more lemons? If not, how many extra lemons does she have? if so, how many more lemons does she need? explain how you found your anwser. she needs 448 ounces for the ...

*Friday, December 30, 2016 by Luis*

**math**

Tanishas mom and the Lemon question. can some show how they got 7 lemons as the answer. Thank you luis

*Friday, December 30, 2016 by Luis*

**math**

a map is drawn using the scale 2 cm: 100 mi. on the map ,town b is 3.5 centimeters from town a, and town c is 2 centimeters past town b. how many miles apart are town a and town c

*Friday, December 30, 2016 by mara*

**Math**

A sweater costs 15.99. If the sweater is on sale for 1/4 off its price, about how much would you save?

*Friday, December 30, 2016 by Christina*

**Math**

All five members of the Malone family went to the movies their tickets cost a total of $30 how was each ticket

*Friday, December 30, 2016 by Anonymous*

**math**

A capacitor of capacitance 10^3 farad is connected in series with a resistor of 10ohms and induction of 0.05 henry. The current in the circuit at t=O and the change on the capacity is also 0. Determine the change at any time t after the circuit is closed given that the emf is ...

*Friday, December 30, 2016 by El manda*

**Math**

A shopkeeper lost 10%by selling an article for Ã¢â€šÂ¹1200. At what price should he have sold the article to gain 10%?

*Friday, December 30, 2016 by Areeba*

**Math Trigonometry**

An airplane is flying between two towns at an altitude of 8km. One town is to the west of the plane and the other is to the east. The angle of depression to one town in de34grees and to the other town is 49degrees. What is the distance between the two towns

*Thursday, December 29, 2016 by Anonymous*

**Math**

A particle is moving along the x-axis so that its position at t>=0 is given by s(t)=(t)ln(5t). Find the acceleration of the particle when the velocity is first zero.

*Thursday, December 29, 2016 by Ke$ha*

**math**

If Larry worked 411/2 hours this week and spent 1/3 of his time hauling material, how much actual time did Larry spend hauling

*Thursday, December 29, 2016 by chris*

**Math**

A particle moves along the x-axis so that at any time t, measured in seconds, its position is given by s(t) = 4sin(t) - cos(2t), measured in feet. What is the acceleration of the particle at time t = 0 seconds?

*Thursday, December 29, 2016 by Ke$ha*

**Math (SAT)**

The function f is defined by f(x)=2x^3-x^2+kx-6, where k is a constant. In the xy-plane, the graph of f intersects the x-axis at the three points (3,0), (-1/2,0), and (q,0). What is the value of k?

*Thursday, December 29, 2016 by Hayley*

**Math**

Whats x to the 3 y to the 6 divided by x to the 3 and y to the 6?

*Thursday, December 29, 2016 by Anonymous*

**Math **

write the percent as a decimal and a fraction 365% Too confusing

*Thursday, December 29, 2016 by Alex*

**Math **

In a candy bar, 108 calories are from sugar. There are 240 calories in the candy bar. What percent of the calories are from sugar? I think the answer is 60.

*Thursday, December 29, 2016 by Alex*

**Math **

When u multiply a whole number by 10 ,what is always true about the ones place in the product

*Thursday, December 29, 2016 by Sepriia*

**math**

Gwen needs to add 2/3 of a cup of flour to a recipe. She only has a 1/3-cup measure. How many scoops of flour does Gwen need to add?

*Thursday, December 29, 2016 by Chloe*

**Math**

100-100 /100-100 =2 ans.

*Thursday, December 29, 2016 by Robin jatav*

**Math**

A copper solid cylinder of radius 14cm and height 10cm is melted and recast into cylindrical wire of diameter 4mm.find the length of the copper wire

*Thursday, December 29, 2016 by Anonymous*

**math**

How to solve 3x+2y=4 2x-3y=7

*Thursday, December 29, 2016 by saad*

**math**

A Clock is set right at 10am.the clock gains 10 minutes in 24hours.what will be true time when the clock indicates 3pm the following day.

*Thursday, December 29, 2016 by Rehan*

**SAT Math**

The function w is defined by w(x)=6+3x. If 4â‹… w(z)=96, what is the value of z? So is w(x)=w(z)?

*Thursday, December 29, 2016 by Kay*

**Math**

An open top box with a square base has a volume of 30ft^3. The total surface area of the box is? a) S.A=x^2-60/x b) S.A=x^2+60/x c) S.A=x^2-120/x d) S.A=x^2+120/x

*Wednesday, December 28, 2016 by Syndra*

**math, algebra**

Members at a yoga school pay $7 per class plus a one-time $120 membership fee. Non-members pay $11 per class. How many classes would a member have to take to save money compared to taking classes as a non-member? I'm struggling with this problem a bit, and so are my ...

*Wednesday, December 28, 2016 by Anna*

**Math**

A freight train travels 260 km in the same time a passenger train travels 320 km. If the passenger train averages 15km/hour faster than the freight train, what is the average speed of the freight?

*Wednesday, December 28, 2016 by Conscious*

**Math**

By selling a watch for rupees 475, jatin suffer a loss of 5percent. At what price should he sell the watch so as to gain 12 percent

*Wednesday, December 28, 2016 by Anonymous*

**Math(A.P)**

The fourth term of an A.P is equal to 3 times the first term and the seventh term exceeds twice the third term by 2. The first term and the common difference are:

*Wednesday, December 28, 2016 by Ana......*

**Math**

Estimate a range for the sum:7.6+2.3+6.7

*Wednesday, December 28, 2016 by Hussain*

**math**

A clock is set right at 10 AM. The clock gains 10 minutes in 24 hours. what will be the true time when the clock indicates 3 PM the following day ?

*Wednesday, December 28, 2016 by mohan*

**math**

Value oftan76.25degree

*Wednesday, December 28, 2016 by dolly*

**Math(A.P)**

A person was appointed in the pay scale of $700-40-1500. Find in how many years he will reach maximum of the scale?

*Wednesday, December 28, 2016 by Ana......*

**Math**

A man goes 7m east and then 24m to south. Find his distance from the starting point

*Wednesday, December 28, 2016 by Jon*

**Math**

Interest of $22.05 was earned in three months on a balance of $1960. What is the interest rate per annum earned on that account? P.s please explain how you solved it.

*Wednesday, December 28, 2016 by Carol*

**SAT Math Question?**

Lindsey and Stephen work at a factory. Lindsey can complete one full job in three hours, and Stephen can complete the same job in five hours. If Lindsey and Stephen work together on the job for one hour, then how long, in minutes, will it take Stephen to finish the job himself?

*Wednesday, December 28, 2016 by Kay*

**Math**

I saw MRP of rs 15.50 of biscuit. What does it mean?

*Wednesday, December 28, 2016 by Anonymous*

**math**

A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle

*Wednesday, December 28, 2016 by donald*

**Math**

the sum of two numbers is 30. the difference of their squares is 180. find the two numbers by elimination method

*Wednesday, December 28, 2016 by Anonymous*

**Math**

Something travels 25 meters in one minute, what does it travel in kilometers in one minute.

*Wednesday, December 28, 2016 by Ashley *

**Math**

Simplest form 5/6 + 7/8=

*Tuesday, December 27, 2016 by Isaiah*

**Math**

You have the number 1,000,000,000 (one billion). What is one hundredth of that number?

*Tuesday, December 27, 2016 by Ashley *

**SAT Math**

All of the students who took chemistry at Groveton High School last year were juniors or seniors, as shown in the table below. If 80% of the students who took chemistry passed, then what fraction of the students in the combined junior and senior classes took chemistry? Class ...

*Tuesday, December 27, 2016 by Kay*

**Math**

Which of the following expressions should be placed in each set of parentheses below in order to solve the equation by completing the square? x2+6x+___=15+____ a.3/2 b.3 c.6 d.9

*Tuesday, December 27, 2016 by Ashley *

**Math**

A clock is set right at 10 AM. The clock gains 10 minutes in 24 hours. What will be the true time when the clock indicates 3 PM the following day?

*Tuesday, December 27, 2016 by Kishan Anand*

**Math**

. Mark pays $4.68 for 0.72 of a pound of almonds. Based on this cost ratio, which statement is true? A. Mark pays a rate of $3.37 per pound of almonds. B. Mark pays a rate of $3.96 per pound of almonds. C. Mark pays a rate of $5.40 per pound of almonds. D. Mark pays a rate of...

*Tuesday, December 27, 2016 by Juan Nita 53*

**Math**

4 students did work for me making $5 an hour working 6 hours a day for 12 weeks. 1 student worked for 4 weeks and one student quit after 8 weeks. 2 students worked 12 weeks. What is the total amount for all students?

*Tuesday, December 27, 2016 by Anonymous*

**Math**

19. A ten-foot-long board is cut into three pieces. The second piece is half as long as the first. The third piece is 4 feet longer than the second. How long is the first piece? A. 1 feet B. 2 feet C. 2 feet D. 3 feet The answer is given by the teacher to us, but I want to ...

*Tuesday, December 27, 2016 by Juan Nita 19*

**Math**

The table below shows the temperature (in Â°F) t hours after midnight in Phoenix on March 15. The table shows values of this function recorded every two hours. Estimate the value of Tâ€²(10). Give units in your answer. What is the meaning of Tâ...

*Tuesday, December 27, 2016 by Ke$ha*

**math**

Assume that you make a down payment of $2000, and you finance the remainder with a five-year loan at 6.9 percent APR. 20092 total cost-2000 down payment=18092 interest=2.24$ What is the equation I need to use to figure out the monthly payments per $100?

*Tuesday, December 27, 2016 by crissy*

** Math**

Find the number of years needed to realize a total interest of $5000 if the principal saved is 10000 at a simple interest rate of 10%

*Tuesday, December 27, 2016 by Anonymous*

**Math**

Juliya is 5 years younger than her brother,Tom.how old are they if the product of their ages is 126?

*Tuesday, December 27, 2016 by R*

**Math**

A water rocket was launched from the ground, with an initial velocity of 32m/s. The rocket achieved a height of 44 m after 2 s of flight. The rocket was in the air for 6 s. Determine the quadratic functionthat models the height of the rocket over time.

*Tuesday, December 27, 2016 by Evelyn*

**math**

A car moving with the speed of 22 decmetre per second find the diametre of the wheel if it performs 700 revolutions per second

*Tuesday, December 27, 2016 by Anonymous*

**Math**

Rohan have some books and some tables.if he puts 9 books into each table he will have two tables left vacant .if he puts 6 books on each table he will have 3 books left over .find the no. Of books

*Tuesday, December 27, 2016 by Praneet thakur*

**Math**

What ocean is found at 40 degree south and 160 degree west

*Tuesday, December 27, 2016 by Vvt*

**math**

1.Elizabeth planned to make 6 pans of apple crisp for the day, using extra tart granny smith apples-just like her grandmother had. But after peeling, coring, and slicing she had a major problem: she only had 10 cups of apple slices. it was getting late and she needed to get ...

*Tuesday, December 27, 2016 by rwr*

**Math**

A class has 30 boys and 25 girls. what is the percentage of boys in the class?

*Tuesday, December 27, 2016 by Math*

**Math**

Help!!! determine the slope of the graph x^2=ln(xy) at point (1,e)

*Tuesday, December 27, 2016 by Ke$ha*

**math **

how do you find 30% of 500 without calculator? also how would you find 0.5% of 3200 without calculator? is there a formula? i don't know where to start. i know 30/100 would be 3/10 and 0.5 is 1/2

*Monday, December 26, 2016 by amaan*

**math**

how do you find 30% of 500 without calculator? also how would you find 0.5% of 3200 without calculator? is there a formula? i don't know where to start. i know 30/100 would be 3/10 and 0.5 is 1/2

*Monday, December 26, 2016 by amaan*

**Math**

Rohan have some books and some tables.If he puts 9 books into each table he will have two tables left vacant. if he puts 6 books on each table he will have 3 books left over. find the number of books?

*Monday, December 26, 2016 by Sanni kumar*

**Math**

HELP DERIVATIVES!!!!!!!!!!!!! if h(x)=f[f(x)] use the tables for f and f' to find the value of h'(1) X f(x) f'(x) 1 3 2 2 1 5 3 6 7

*Monday, December 26, 2016 by Ke$ha*

**MATH**

1. -2v - 7 = 23

*Monday, December 26, 2016 by please help!!*

**Math**

Which of the following ratios is not equivalent to the other two?

*Monday, December 26, 2016 by Anonymous*

**math**

A boy has rs728 in denomination of rs 2 notes, rs 5 notes and rs 10 notes in the ratio of 3:2:4, respectively. What is the total number of notes he has? (A)104 (B)127 (C)100 (D)117

*Monday, December 26, 2016 by vk*

**MATH**

if Log10^a=4 what is a

*Monday, December 26, 2016 by YOUNG FAITH*

**Math **

The difference of two numbers is 4. Three Times the smaller number is 4 more than twice the larger number. Find the numbers.

*Monday, December 26, 2016 by Manish *

**Math**

7. A student has received scores of 88, 82, and 84 on three quizzes. If tests count twice as much as quizzes, what is the lowest score the student can get on the next test to achieve an average score of at least 70? A. 13 B. 48 C. 70 D. 96 The correct answer is B, but I would ...

*Monday, December 26, 2016 by Juan Nita 3*

**Math**

Prove that (cos2A)Ã· ( 1+sin2A) = (cotA -1) Ã· (cotA +1)

*Monday, December 26, 2016 by Ismail Abdullah*

**Math**

Roberto's puppy weighs 4.5 pounds at the end of May. During June and July the puppy weighed 18.63 pounds. How much did Roberto's puppy weigh at the end of July? I thought about about dividing 18.63 by 2 and hopefully subtract to get 4.5

*Sunday, December 25, 2016 by Nini*

**Math **

29. Which of the following expressions should be placed in each set of parentheses below in order to solve the equation by completing the square? A. B. 3 C. 6 D. 9 The correct answer is D, but I need to learn how to do it and get the right answer. Thanks in advance.

*Sunday, December 25, 2016 by Juan Nita 2*

**Math**

26. If , what is ? A. B. 5 C. D. 3 The answer for this question is C. I need to learn exactly how to solve it (step by step) so I can do it on an exam. Thank you.

*Sunday, December 25, 2016 by Juan Nita *

**Math **

which is a rule that describes the translation of a point form (4 -8) to (7 -10)? (x,y) --> (x + 3, y - 2) (x,y) --> (x + 3, y + 2)** (x,y) --> (x - 3, y - 2) (x,y) --> (x - 3, y + 2)

*Sunday, December 25, 2016 by CONFUSED!*

**Math **

the ordered pairs (2, -21) and (5, -45) are solutions to which of the following equations? y = -8x - 5 y = -8x + 5** y = 8x - 5 y = 8x + 5

*Sunday, December 25, 2016 by HELP!*

**Math**

Write 0.583(repeating on 3)as a rational number. Please explain this is complicated

*Sunday, December 25, 2016 by Complicated*

**math-integrating factor**

dy/dx - y/x = 0 I got 1/x, but I am not sure if this is right or not.

*Sunday, December 25, 2016 by richard*

**Math**

The integral of cot^4cosec^2xdx

*Sunday, December 25, 2016 by Trixy*

**Math**

P and Q are two observation posts on the same horizontal ground as the foot R of a vertical pole RT. P is 2.5km south of R. Q is east of R and on a bearing of 065Â° from P. The angle of elevation of T from P is 40Â°. Calculate, the angle of elevation of T ...

*Sunday, December 25, 2016 by Thompson*

**math**

ab and ac are tangents to a circle with centre o. if angle bac is equal to 40 degree, find angle abc and angle acb.

*Sunday, December 25, 2016 by sha*

**math**

A long wire of some length is cut into small pieces of 216 cm, leaves a small piece of length of 89 cm. if this part were cut into equal pieces each of 18 cm, the length of the of the leftover wire would be:

*Sunday, December 25, 2016 by abc*

**Math**

Find the simple interest on 8,500 rd from 12th October,1999 to 6th march 2,000 at per annum

*Sunday, December 25, 2016 by Nikhil*

**Math**

There will be 240 seats on the lawn for graduation. Show all the ways you can make equal rows of chairs if there are at least 5 rows.

*Saturday, December 24, 2016 by Daniel*

**math**

F(x, y) represents a velocity field of a fluid over a surface S defined by z = 6 âˆ’ 3x âˆ’ 2y. If the magnitude of the velocity in the direction of the unit normal vector, nÌ‚, on S is 3zâ„âˆš...

*Saturday, December 24, 2016 by NEED HELP!!!*

**Math**

Two combines are able to harvest 320 acres of crops in a certain amount of time. How many acres will (a)3, (b)4, (c)6 and (d)7 combines harvest if they work at the same rate for this amount of time?

*Saturday, December 24, 2016 by Nina*

**MATH**

given the regression line y=42-3x what number of units are expected to increase in y if x is decreased by 2 units. a)2 b)4 c)6 d)8

*Saturday, December 24, 2016 by Ana....*

**math **

if a person buy a book rs 36 the available on discount 40 % find the original price

*Saturday, December 24, 2016 by zafar *

**Math**

The lower limit of 25-29 is

*Saturday, December 24, 2016 by Hamza*

**math**

The radius of the sphere is 10 units. What is the approximate volume of the sphere? Use Ï€ = 3.14 and round to the nearest whole cubic units

*Friday, December 23, 2016 by bre*

**Math**

Dylan met his goal today of completing 85% of his field goal attempts. He made 51 field goal attempts. How many attempts has he made this season

*Friday, December 23, 2016 by Catherine*

**math**

Will, micah and sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio of 2:5. If Sue paid $6. more than Will, how much did the dinner cost ?

*Friday, December 23, 2016 by casey*

**Pre-calc Math**

A tree on a hillside casts a shadow c = 210 ft down the hill. If the angle of inclination of the hillside is b = 21Â° to the horizontal and the angle of elevation of the sun is a = 51Â°, find the height of the tree. (Round your answer to the nearest foot.) ...

*Friday, December 23, 2016 by Anthony*

**Pre-calc Math**

The path of a satellite orbiting the earth causes the satellite to pass directly over two tracking stations A and B, which are 95 mi apart. When the satellite is on one side of the two stations, the angles of elevation at A and B are measured to be 87.0Â° and 84.2&...

*Friday, December 23, 2016 by Anthony*