Sunday
August 30, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

math
Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38... A. n+7;707 B. 7n;700 C. 7n-4;696 D. 6n-4;596
Wednesday, May 13, 2015 by bibby

Math
A drawer contains 2 red socks, 3 white socks, 3 blue socks. Without looking , you draw out a sock, then return it, and draw a second sock. What is the probability that the first sock is blue and the second is red? 3/8, 2/5, 29/32, 3/32 I chose 3/8 is that correct
Wednesday, May 13, 2015 by Awesome

Math
a standard number cube is rolled 180 times. Predict how many times a 3 or 5 will be the result. 31 times 60 times 57 times 30 times I chose 31 times Is that correct i would appreciate your help
Wednesday, May 13, 2015 by Awesome

Math
For the solutions of 4tantheta = 5tantheta + sqroot3, can both these answers be acceptable? 120 + 180n -60 + 180n
Wednesday, May 13, 2015 by Anonymous

Math
If no digit may be used more than once, how many 5 digit numbers can be formed using only the digits 3,8,1,2,5 and 7? my answer is 360
Wednesday, May 13, 2015 by Awesome

Math
Find all the solutions of 5sintheta - 4 = 2sintheta - 4 in 0 to 2pi. 0, pi, and 2pi?
Wednesday, May 13, 2015 by Anonymous

Math
Please show how 7/8 is greater than, less than, or equal to 7/24. Thanks
Wednesday, May 13, 2015 by Karen

Geometry/Math
Two right circular cylinders have equal volume. The first cylinder has a radius of 6 inches and a height of 12 inches. What is the number of inches in the height of the second cylinder if its radius is 8 inches? Express your answer as a common fraction, without units.
Wednesday, May 13, 2015 by Amanda

Math
Hi there! I am so confused about these questions if anyone could help that would be great. 1. Simplify. x+5/x^2+6x+5 A) 1/x+1; where x= -1*** B) 1/x+1; where x=-1,-5 C) 1/x-5; where x=5 D) x-5 2. Simplify. x^2+3x-4/x+4 A) 1/x-4; where x=4 B) x-4 C) x-1; where x=1 D) x-1; where...
Wednesday, May 13, 2015 by Tia

MATH I NEED HELP
Game wardens use experiments to help determine the number of deer in the state of North Carolina. Suppose 120 deer are caught, tagged, and released into the wild. A month later, 800 deer are caught with 16 found to have tags. Using this information, estimate the number of ...
Wednesday, May 13, 2015 by Caleidoscope

Math
Zoe's gross income is $16,960. His medical expenses for the year amounted to $812.35. If he can deduct only the amount over 7 1/2% of his gross income for medical expenses, how much can he deduct for medical expenses?
Wednesday, May 13, 2015 by Caleb

Math
Rad makes six payments a year of $175.50 for his auto insurance. How much must he budget weekly to cover this fixed expense? a. $20.25 b. $43.88 c. $1,053 d. $87.75 Rod makes six payments a year of $150 for his auto insurance. How much must he budget weekly to cover this fixed...
Wednesday, May 13, 2015 by Caleb

Math
Show that the equation x = 1/5(x^4 +2) has two real roots, both of which are positive. Evaluate the smaller root correct to 3 decimal places, using Newton‘s method.
Wednesday, May 13, 2015 by Anonymous

Math
By drawing suitable sketches, state the number of (i) positive, (ii) negative roots of the following equation x+1 = cos x .
Wednesday, May 13, 2015 by Anonymous

Math
Prove, by mathematical induction, or otherwise, that 1*1!+2*2!+3*3!+…+n*n!=(n+1)!-1
Wednesday, May 13, 2015 by Anonymous

Math
Carl borroowed $2,500 for six months at an annual interest rate of 11%. How much must he repay at the end of six months? a. $275 b. $2,637.50 c. $87.50 d. $2,762.50 Please show all steps needed to get answer in simple terms.
Wednesday, May 13, 2015 by Caleb

math
Jenny has a problem where she has to measure an angle that is drawn on the paper. She is going to use this protractor to do so. How precise can she be?
Wednesday, May 13, 2015 by Anonymous

math
Q2. An agriculture field is rectangular,with dimensions 100m by 42m.A 20m deep well of diameter 14m is dug in acorner of the field and the earth taken out is spread evenly over the remaining part of the field. Find the increase in the level of the field.
Wednesday, May 13, 2015 by tarekegn

math
A40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form aplateform of dimension 28m by 22m.find the height of the platform.
Wednesday, May 13, 2015 by tarekegn

Math
Find the numerical value of the coefficient x^11 in the expansion of (x^2+1/x)^10 in the powers of x.
Wednesday, May 13, 2015 by Anonymous

math
the cost of painting the circular traffic sign shown below is $3.50 per square foot.how much,to the nearest dollar,will it cost to paint the sign if its diameter measures 36 inches?
Wednesday, May 13, 2015 by dev

Math
A ball is dropped from a height of 16 feet. Each time the ball dropped h feet, it rebounds 0.81h feet. Find the total vertical distanced travelled by the ball.
Wednesday, May 13, 2015 by Anonymous

Math
The sixth term of an arithmetic sequence is 20.6 and the 9th term is 30.2. Find the 20th term and find the nth term.
Wednesday, May 13, 2015 by Anonymous

Math: Line Symmetry and Reflection
1. The point c(x,y) is reflected over the x-axis. Use arrow notations to describe the original point and its reflection. a. (x,y) --> (x,2y) b. (x,y) --> (-x,y) c. (x,y) --> (-x,-y) d. (x,y) --> (x,-y) ** 2. What is the correct description for the translation of A ...
Wednesday, May 13, 2015 by Jazmine

Math
How to find the zeros of -16t^2 + 200 = 0?
Wednesday, May 13, 2015 by Anonymous

Math
What are all the solutions for 4sintheta + 1 = 2sintheta from 0 to 2pi? Would it be 7pi/6 and 11pi/6?
Wednesday, May 13, 2015 by Anonymous

Math
The number of sequence is 17 ,the second is 3.what is the first number?
Wednesday, May 13, 2015 by Christopher

math
If 24 students in a class of 30 students were present what percent of the students were absent
Wednesday, May 13, 2015 by keona

grade 5 math
a great white loses teeth and grows new teeth if a shark lost 240 of its 3,000 teeth in one year what percent of teeth did it lose? Pls help !,!
Wednesday, May 13, 2015 by Art

Math
Ob a multiple choice exam with 25 questions , the instructor scored the exams as follows: 4 points for each correct answer. What was the score of a student who had 14 correct answers , 3 blank answers, and 8 wrong answers?
Wednesday, May 13, 2015 by Preia

Math
What is the rate of interest charged if a 9 month loan of $1200 is paid off with with $1312.50?
Wednesday, May 13, 2015 by Preia

Math
The sum of three consecutive odd numbers is 615? Find the numbers.
Wednesday, May 13, 2015 by Preia

Math
An auto dealer paid $ 4195.25 for a large order of special parts. This was not the original price. The amount paid reflects a 3% discount off the original price because the dealer paid cash. What was the original price of the parts?
Wednesday, May 13, 2015 by Preia

math
A car saleswoman earns a commission of 12% on each car she sells. How much money did she make the dealership in car sales the month she recieved $19,200 in commission?
Wednesday, May 13, 2015 by Preia

college math
each individual letter of the word Tallahassee is placed on a piece of paper and all 11 pieces of paper are placed in a hat. If one letter is selected at random from the hat, determine the probability that the letter T or E is selected.
Wednesday, May 13, 2015 by Patricia

math
a cone has a height of 10 cm and a volume of 350 cm. what is the radius of the cone?
Wednesday, May 13, 2015 by sharon

Math
Twice the square of a positive number increased by three times the number is 14. Find the number.
Tuesday, May 12, 2015 by Ed

Math
What is cos 2theta for sin theta = -2/13 in 180 degs < theta < 270 degs?
Tuesday, May 12, 2015 by Anonymous

Math
Consider the following equation: A=(s+1)^2. This equation can also be written as ____.
Tuesday, May 12, 2015 by M

Math
twice the square of a positive number increased by three times the number is 14. find the number
Tuesday, May 12, 2015 by M

Electronics, Physics, Math
5. A circuit is supplied with 30 VDC and contains three resistors connected in series. The value or R1 is 80Ω, the value of R2 is 1,000Ω , and the value of R3 is 4,200Ω . What is the voltage drop across R2? A. 5.68 V B. 2.14 V C. 4.61 V D. 6.82 V I keep coming ...
Tuesday, May 12, 2015 by Vicki

math
A farmer is installing a fence. The coordinates of the vertices of the fence are A(2,2), B(2,6), C(8,6), D(8,2). If each grid square has length of 9 yards, how much wire is needed for the fence?
Tuesday, May 12, 2015 by erica

Math
How would you factor (x+y)^2-(x-y)^2
Tuesday, May 12, 2015 by Lily

math
there are 3 pizzas .each child will get 1/4 of a pizza.how many children will get pizza?
Tuesday, May 12, 2015 by max

Math
Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. Can the highway be finished in 8 months? 6 1/2 months have already passed by and so far they have 36 2/5 miles complete. Thanks! My friend and I are ...
Tuesday, May 12, 2015 by First Name

math
IN a geometric sequence the 5th term is 60 and the first five terms are 783/2. What is the sum of the first 10 terms.
Tuesday, May 12, 2015 by jay sayn

Math
Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. 6Can the highway be finished in 8 months?
Tuesday, May 12, 2015 by Millwoof

math
Used 2/12 of sugar in each cupcake if they make 9 cupcakes how much sugar get used for each one explain how I get the answer
Tuesday, May 12, 2015 by tyler

math
COULD 35 ever be the product of 10 and another number?Explain
Tuesday, May 12, 2015 by nevaeh

Math
The data set 3, 3, 3, 4, 4, 4, 5, 5, 5 is shown. Does this data set have a mode? why or why not?
Tuesday, May 12, 2015 by Paige

Math
Lavonne’s mother has brown eyes, and her father has blue eyes. Lavonne has brown eyes, and her husband has blue eyes. She knows that her children are equally likely to have brown or blue eyes. What is the probability that her first child will have blue eyes? If her first ...
Tuesday, May 12, 2015 by Anonymous

Math
(-2c^4)(4cd)(-cd^2)
Tuesday, May 12, 2015 by Jim

math
Write a rule for the sequence 8,-1,-10,-19...
Tuesday, May 12, 2015 by bibby

Math
6. Given the functions rule f(x)=x^2-3x+2 what is the output of f(-2)? A. -8 B.0 C.4 D.12 7. Suppose you earn $12 each time you now the lawn. Which function describes the relationship between your total earnings E and the number of times you now the lawn, m?
Tuesday, May 12, 2015 by Brendell

Math
The tail on Alex's dog is 5 1/4 inches long this like this between which 2 inch March on a ruler
Tuesday, May 12, 2015 by ryan

Math (Riemann Sums)
Measurements of a lake’s width were taken at 15-foot intervals, as shown: x= 0 15 30 45 60 75 90 105 120 f(x)= 0 15 18 20 19 23 24 22 12 Estimate integral (0,120) f(x) dx with n = 4, using Midpoint approximation. For this question, I ended up with 7200 but compared to the...
Tuesday, May 12, 2015 by Pax

Math
a bag of fruit contains 4 apples, 1 plum, 2 apricots, 3 oranges. Pieces of fruit are drawn twice with replacement. What is p(apple, then apricot)? 4/5, 2/25, 3/25, 3/5 I chose 3/5
Tuesday, May 12, 2015 by Awesome

math
29.64 acres = how many hectares
Tuesday, May 12, 2015 by Anonymous

Math probability
a bag of fruit contains 4 apples, 1 plum, 2 apricots, 3 oranges. Pieces of fruit are drawn twice with replacement. What is p(apple, then apricot)? 4/5, 2/25, 3/25, 3/5 I chose 3/5.
Tuesday, May 12, 2015 by Awesome

Math
How to calculate the volume of a rectangular prism as if it were a pyramid!?? Can you give me the formula as well too. I need help asap! and thanks
Tuesday, May 12, 2015 by Ellie_Fan

Math probability
Which of the following is an example of independent events? rolling a number cube selecting marbles from a bag without replacement after each draw Choosing and eating a piece of candy from a dish and then choosing another piece of candy pulling a card from a deck when other ...
Tuesday, May 12, 2015 by Awesome

Math
How to calculate the volume of a rectangular prism as if it were a pyramid!?? Can you give me the formula as well too. I need help asap! and thanks
Tuesday, May 12, 2015 by Ellie_Fan

Math
Give three additional polar coordinate pairs for the Point B: (-3,2π/3). -2 < π < 2
Tuesday, May 12, 2015 by Taylor

Math
Kerry got her kite stuck in the very top of a tree. If she knows that she is standing 50 yards away from the tree and the angle that her kite string makes when held to the ground by her feet is 48 degrees, how tall is the tree?
Tuesday, May 12, 2015 by Miyanna

Math
Use the table below to answer the following question. x: 1, 2, 3, 4 y: 1, 4, 9, 16 Which is NOT true about the above table? A: It shows a linear function. B: The variable x increases by 1 each time. C: The rate of change is not constant. D: The variable y increases by a ...
Tuesday, May 12, 2015 by Krystal

math
Some irrigation systems spray water in a circular pattern. You can adjust the nozzle so it sprays in certain directions. The nozzle in the diagram is set so it does not spray the house. If the spray has a radius of 12 ft, what is the approximate length of the arc that the ...
Tuesday, May 12, 2015 by shelia

Math
find the median of 2,2,26,14,49,42,39. If necessary, round to one decimal place. A) 14 B)25.4 C)39 D)26 I have done the math for this calculation by adding the numbers and then divided by 7 and got 24.85714286 by rounding I would have 24.9. Which isn't an option. So what ...
Tuesday, May 12, 2015 by Carol

Math
Simplify 2(x+2)+4x-10x. I do not understand how to do this problem and we did not go over simplifying in math class. Please help.
Tuesday, May 12, 2015 by Toby

math
Write the expression using a single exponent. 2^2*2^8 A.4^10 B.2^10 C.4^16 D.4^16 Is the answer C??
Tuesday, May 12, 2015 by nelly

math help please
In the expression -7x-5x^2, what is the coefficient of x? A.7 B.5 C.-5 D.-7 Is the answer D??
Tuesday, May 12, 2015 by Anono

math help please
How many terms are in the following polynomial? 6x^4+3x^3-2x^2+15x-14 A.5 B.4 C.3 D.2 Is the answer A??
Tuesday, May 12, 2015 by nelly

Math to hard please help
Name the coefficients in the polynomial. 4^2+3x-3 A. 4,-3,-3 B. 4,3 C. 4,3,3 D. -4,-3 Is the answer B??
Tuesday, May 12, 2015 by Anono

Math Help :)
1.)x^2+3x-4/x+4 *not sure* 2.)x/7x+x^2 *1/7x where =/0* 3.)5x^3/7x^3+x^4 *5/7x where x =/ 0 thank you *= my answer
Monday, May 11, 2015 by coolkid

Math to hard please help
Add or subtract (4x^2+15x-3)-(3x^2+5) A. 7x^2+15x-8 B. x^2+12x+2 C. x^2+15x-8 D. 7x^2+8 Please help me. Thanks
Monday, May 11, 2015 by Anono

Math to hard please help
List three different ways to write 5^11 as the product of two powers. Explain why all three of your expresses are equal to 5^11. Please help me I don't know how to do this kind of math.
Monday, May 11, 2015 by Anono

math
When a pendulum swings 35degree from the vertically, the weight moves 15cm horizontally and 5.3 vertically. The length of the pendulum____?
Monday, May 11, 2015 by tj

math
please help with in a day jamal spent 1 2/3 hours watching television 1 4/5 hours taking an afternoon nap, and 7/8 hour helping his mother with housework how much time did Jamal spend on watching television and helping with housework do I have to change this into minutes? I ...
Monday, May 11, 2015 by stacy

math
The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer.
Monday, May 11, 2015 by Anonymous

Math
A car travelling at 23 miles per hour accelerates to 46 miles per hour in 5 seconds. It maintains that speed for 5 seconds before it slows to a stop in 5 seconds. Sketch and label a graph showing the car's speed over time.
Monday, May 11, 2015 by Jalen white

math
Find the degree of-5w^3-4w^2+7w+16 A.-5 B.16 C.14 D.3 I don't know how to do this you please help me? Thank you
Monday, May 11, 2015 by nelly

math
Simplify each polynomial a^2+5a-3a^2 A.5a+2a^2 B.-2a^2+5a C.-3a^2+6a D.5a-3a^2 Is the answer B?
Monday, May 11, 2015 by Anono

math
sofia has a plate that has 4 sides of equal length, 2 pairs of opposite sides that are parallel and no right angles. what quadrilateral best describes the plate?
Monday, May 11, 2015 by Hayden

math
A 160‐inch strip of metal 20 inches wide is to be made into a small open trough by bending up two sides on the long side, at right angles to the base. The sides will be the same height, x. If the trough is to have a maximum volume, how many inches should be turned up on ...
Monday, May 11, 2015 by Anonymous

Math
A bus driver filled up 7/8 fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. the capacity of her tank is 70 gallons. How much fuel did she use for the trip? Express your answer as decimal. Please help BJ Thank you
Monday, May 11, 2015 by BJ

math
(10^2t)-2(10^t)+1=0 let 10^t=y please help
Monday, May 11, 2015 by david

math
Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].
Monday, May 11, 2015 by Anonymous

math
A particle moves on a line away from its initial position so that after t hours it is s = 6t2 + 2t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
Monday, May 11, 2015 by Anonymous

math
the state of Colorado is roughly the shape of a rectangle the is miles by 382 miles. what is its area
Monday, May 11, 2015 by Anonymous

Math
I have all the answers for c I just need to make sure I am correct. For b I am a little lost. For a I have the answer but I know I am probably wrong. The city of Valley Grove is considering shortening the length of the school day. The school board hired Mr. Kent to do a survey...
Monday, May 11, 2015 by Cindy65

Math 231
In Mr. Everett's first-period class, 18 of 25 students passed the last test. In his second period, 17 of 23 passed. Use the percents to conclude which class did better. Show all work.
Monday, May 11, 2015 by Cynthia Phillip

Math
How to simplify this expression √3b^2 / 27b^4
Monday, May 11, 2015 by M

math
(x+2)2-1=3
Monday, May 11, 2015 by Anonymous

Math
Select the inequality that models the problem. The length of a rectangle is four times its width. If the area of the rectangle is less than 100 square meters, what is the greatest width of the rectangle? 4w + w < 100 4 + 4w < 100 4w < 100 4w • w < 100
Monday, May 11, 2015 by Sara

Math
Do the data in the table represent a linear function? if so, write a rule for the function X= -2,-1,0,1,2 Y= -7, 1,8,17,25 A. yes; y= 8x + 9 B. yes ; y = 8x +8 C. yes ; y = 1/8x+8 D. no*** plz help me
Monday, May 11, 2015 by Abby

Math
Do the data in the table represent a linear function? if so, write a rule for the function X= -2,-1,0,1,2 Y= -7, 1,8,17,25 A. yes; y= 8x + 9 B. yes ; y = 8x +8 C. yes ; y = 1/8x+8 D. no***
Monday, May 11, 2015 by Abby

Math
A prototype rocket burns 159 gallons of liquid hydrogen fuel each second during a regular launch. Make a table that shows how many gallons of fuel are burned after 2,3,5,and 10 seconds. Please help me
Monday, May 11, 2015 by anono

Math
5*3^n A.15,30,45,60*** B.5,15,45,135 C.0,15,45,135 D.15,45,135,405 I need help plz answer my question
Monday, May 11, 2015 by Abby

math
Explain how to write a function rule from the table below. Then write a function rule. x 2 4 6 y 1 0 -1
Monday, May 11, 2015 by emma

Math
the cost of a student ticket to the schools play is $7. write an equation that correctly relates the cost,c,for particular number of student tickets,s,purchased indetify the independent and dependent variables (3 Points) Please help
Monday, May 11, 2015 by mang

Extremly hard math
The function rule C =10n+26 relates the number of people n who attend a small concert to the cost of dollars C of the concert. Make a table of the imput/output pairs to show the cost if 27,39, and 43 people attend. Please help me I dont understand any of this.
Monday, May 11, 2015 by Dove

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