Sunday

August 30, 2015
**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*