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October 23, 2014

Homework Help: Math

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Recent Math Questions

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Math
You have $60.00 in your wallet and want to buy some new CDs. If the CDs are $11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer. My answer $60.00/$11.00=x CDs 60/11=5.45 X=5 You can buy 5 CDs with $60.00 at $11.00 each. Is ...
Friday, September 19, 2014 at 8:20pm

math
Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to 6 and it's a filled dot. B. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 and its a filled dot. C. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 it's a ...
Friday, September 19, 2014 at 7:55pm

Math
Which of the following equations has an infinite number of solutions? A. 3x-3=-4x B. 2y+4-y=16 C. 7x+5=4x+5+3x D. 6y-2=2(y-1) Is the answer A?
Friday, September 19, 2014 at 7:53pm

math
Bananas are $0.59/pound. What is the constant of proportionality?
Friday, September 19, 2014 at 7:27pm

Math
Find the X & Y intercepts of this equation: y=x^2-2x-3
Friday, September 19, 2014 at 7:07pm

Business math
Jerrika has $12,400 invested at a simple interest rate of 4.2%. Patrick earns only 3.85% on his investments. How much would Patrick need to invest in order to earn the same amount of interest per month as Jerrika?
Friday, September 19, 2014 at 6:58pm

math
How many times as heavy is the Golden Eagle of 13 9/10 llb as the Red-Tailed Hawk of 3 1/2? I never know if I have to divide or multiply. How can I tell with this problem?
Friday, September 19, 2014 at 6:47pm

Math Help
Evaluate the function and simplify: f(x)=4x^2+3x-3; f(x-1)
Friday, September 19, 2014 at 6:41pm

Math
Check answer PLEASE!! Kevin wants to calculate the value of the expression below. -17 + 3 Which shows an equivalent way kevin could write this expression? (A.) -(17 + 3) B. -(17 - 3) C. (-3 + 17) D. (-3 - 17) Please help as soon as possible!! I have no one to help me and i don...
Friday, September 19, 2014 at 6:24pm

Math
cheryl is organizing her movie collection. If each movie case is 3/4 inch wide, how many movies can fit on a shelf 5 1/4 feet wide?
Friday, September 19, 2014 at 6:23pm

math
the sum of the digits in a three-digit number is 16.the ones digit is three times the hundreds digit.if the digits of the number are reversed ,the new number is 594 more than the original .what is the original number?
Friday, September 19, 2014 at 5:52pm

Math
This is really confusing to me. I'm not sure on how to do this or even how to get an answer? Can someone perhaps help me? Thanks! :) f(x)=x^2-25/x-5 if x is less than or equal to -1; 2x-3 if x>-1. f(4)= f(-1)=
Friday, September 19, 2014 at 5:25pm

math skill sheet 777
i have equal numbers of pennies, nickels ,dimes, and quarters. The total value of my coins is $2.05. Altogether i have ? coins. Please tell me how you did it and show your work please so i understand.
Friday, September 19, 2014 at 5:09pm

Math
Which of the following equations has an infinite number of solutions? A. 3x-3=-4x B. 2y+4-y=16 C. 7x+5=4x+5+3x D. 6y-2=2(y-1)*** Is the answer D?
Friday, September 19, 2014 at 4:01pm

Math help
Find all whole numbers which: A: 20-x=x B: 20-x-6=0 C: x+4=3+x+1
Friday, September 19, 2014 at 4:01pm

Math Help
Evaluate the piecewise function: f(x)= {x^2-25/x-5, if x < -1 --- and 2x-3, if x>-1 We are looking or f(4)= and f(-1)= with that whole equation
Friday, September 19, 2014 at 3:46pm

Math
Evaluate the function and simplify: f(x)=4x^2+3x-3; f(x-1)
Friday, September 19, 2014 at 3:42pm

Math
Determine whether the graph of x=y^2-1 is symmetric with respect to the x-axis, the y-axis, the origin, or has no symmetry.
Friday, September 19, 2014 at 3:41pm

Math help
There is a center circle with eight circles connected to it. A. Place numbers 24 through 32 so the sums are all the same. B. How many numbers can be placed in the middle to obtain a solution?
Friday, September 19, 2014 at 3:38pm

Math
Graph the inequality:x</=-2 A. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to 6 and it's a filled dot. B. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 and its a filled dot. C. <-6,-4,-2,0,2,4,6> The dot is on the -2 going to -6 it's a ...
Friday, September 19, 2014 at 3:26pm

Math
The width of a rectangle is 6 in. less than its length. The perimeter is 68 in. What is the width of the rectangle? (not multiple choice) my answer is 14 5(a-4) - 8a = 55 (not multiple choice) my answer -25 2n-7/3 = 15 (not multiple choice) my answer is 6
Friday, September 19, 2014 at 3:25pm

Math
Which of the following equations has an infinite number of solutions? A. 3x-3=-4x B. 2y+4-y=16 C. 7x+5=4x+5+3x D. 6y-2=2(y-1)*** Is the answer D?
Friday, September 19, 2014 at 3:20pm

Math
Write the inequality and solve for the following question: the result of 6 subtracted from a number n is at least 2, A. n-2>6;n>8 B. n-6>2;n>8 these arrows have a line under them.*** C. n+6>2;n<4 these arrows have a line under them. D. n+6>2;n>4 these ...
Friday, September 19, 2014 at 3:10pm

Math
g/-5<-18 Solve the inequality A. g<-23 B. g>-90 C. g>90 D. g<90 Is the answer C?
Friday, September 19, 2014 at 2:59pm

Math
What's the probability of picking out 5 white and 3 red balls from a bag containing 12 white and 3 red balls? That is all the red balls and 5 white from the bag leaving 7 white balls.
Friday, September 19, 2014 at 2:41pm

Math
The first prize in a lottery is $250 000. Each winner chosen after the first is paid 20% as much as the winner before them. Determine a formula for the sum of n terms of the geometric sequence.
Friday, September 19, 2014 at 1:15pm

Math
For each arithmetic sequence, determine a) the value of t1 and d (2 marks) b) an explicit formula for the general term (2 marks) c) t20 (2 marks) 3a, 3a – 2b, 3a – 4b, 3a – 6b, …
Friday, September 19, 2014 at 12:57pm

Math
The width of a rectangle is 6 in. less than its length. The perimeter is 68 in. What is the width of the rectangle? (not multiple choice) my answer is 14 5(a-4) - 8a = 55 (not multiple choice) my answer -25 2n-7/3 = 15 (not multiple choice) my answer is 6
Friday, September 19, 2014 at 12:53pm

Math
Find the value of term 1 given S8 is equal to -3280 and the common ratio is equal to -3?
Friday, September 19, 2014 at 12:40pm

Math
A cone is 8cm high and its vertical angle is 62 degrees,find the diameter of its base
Friday, September 19, 2014 at 12:34pm

math
calculate the interest on a five-year loan of $13,950 at a 5.8% rate of interest.
Friday, September 19, 2014 at 12:23pm

math
Why do you think the scale in graphs is 0 to 28 by fours instead of 0 to 28 by one? What other scale could you use
Friday, September 19, 2014 at 11:35am

math
What does each space between the numbers represent?
Friday, September 19, 2014 at 11:32am

math
Explain how to use multiplication to check the answer to a division problem
Friday, September 19, 2014 at 11:29am

math
Explain how estimating the quotient helps you place the first digit in the quotient of division problem
Friday, September 19, 2014 at 11:28am

Math
You complete 3centimeters of a necklace in an hour. Each hour after the first, you triple the length of the necklace. Write an expression using exponents for the length of the necklace after three hours. Then find the length.
Friday, September 19, 2014 at 10:55am

math
how many ways can you choose two colors from green, orange, yellow, purple, blue, and silver?
Friday, September 19, 2014 at 10:54am

Math
square root -1 divided by square root -81 square root -36
Friday, September 19, 2014 at 9:07am

Math
Find the solutions of the equation. (Enter your answers as a comma-separated list.) x^4 = 625
Friday, September 19, 2014 at 9:06am

math
GCF of each pair of polynomials 27 y3z and 45 x2y
Friday, September 19, 2014 at 6:51am

Math
What is the largest possible value of the sum of 1000
Friday, September 19, 2014 at 5:08am

math
Estimate 540943 + 382093= 923036
Friday, September 19, 2014 at 1:12am

math algebra word problems
Two crews working toward each other are 9.45 miles apart. one crew paves 1.5 miles per day, and the other paves 1.2 mi per day. How long will it take them to meet?
Friday, September 19, 2014 at 12:39am

Math
Interpret th enumerical expression. (15 + 9 ) x 3
Thursday, September 18, 2014 at 11:27pm

Math Precal/Trig
Solve for n. 7((1-(-3)^n)/(1-(-3))=3829 I was confused on distributing the number 7, because we've always had problems with the number 1 on the outside.
Thursday, September 18, 2014 at 11:07pm

Math (Exponents)
A. Complete expanded form of 4.728 in exponential notation?
Thursday, September 18, 2014 at 10:51pm

math
I am thinking of a number. 55 but no more than 45 it is an odd number. The sum of the digits is 12. What is the number?
Thursday, September 18, 2014 at 10:37pm

Math Problem (please help)
Find the zeros of the function algebraically. f(x) = 36x^4 − 25x^2 x = (smallest value) x = x = (largest value)
Thursday, September 18, 2014 at 10:36pm

Math-The chain rule HELP
Use the chain rule and simplify your answer: y= 1/u prime u= 3x^2 + 5
Thursday, September 18, 2014 at 10:28pm

math
If P0 > c (which implies that −1 < a < 0), then the logistics function P(t) = c 1 + ae−bt decreases as t increases. Biologists often use this type of logistic function to model populations that decrease over time. See the following figure. Apply this ...
Thursday, September 18, 2014 at 9:50pm

math
Linda did 24 problems out of 25 correctly.In the next test she did twice as many examples correctly but received a mark only half as good.How many problems were there in the second test?
Thursday, September 18, 2014 at 9:29pm

Math
Which number is larger .545 or .54 repeating?
Thursday, September 18, 2014 at 9:29pm

math
Distribution of Employees in National Insurance Company by age groups:(for questions 76-78) Age Group Per cent 46 and over 25 40-45 34.5 35-39 25.62 30-34 12.9 Under 30 1.9 76. Thirty thousand employees of this company are 46 years or over.How many thousand(to the nearest 0.1 ...
Thursday, September 18, 2014 at 8:59pm

Math
what does that mean?? write the place and value of each number. 1)5,272,468,693 what is the selected digit in? ^ its eight
Thursday, September 18, 2014 at 8:54pm

Math (Pre-Calculus)
Can someone help me with this? Thanks! Find the zeros of the function algebraically. f(x)=x^2-8x+15 ---------------- 10x
Thursday, September 18, 2014 at 8:50pm

math
what is a multiple?
Thursday, September 18, 2014 at 8:43pm

math
one edition of the book has 352 pages, how many were used in its page numbers
Thursday, September 18, 2014 at 8:24pm

math
need help with this problem of reasoning quantitively. simplify (-2)to the 3rd power -2 to the 5th power
Thursday, September 18, 2014 at 8:05pm

Math Gr 12
We are learning to solve Factorable Polynomial Inequalities Algebraically. Question: Solve using intervals. (4x +1)(2-x) is greater than or equal to 0.
Thursday, September 18, 2014 at 8:02pm

math
Compute the rate for the following loan. Round answers to the nearest tenth of a percent; use ordinary interest when time is stated in days. Do not enter the percent symbol in your answer. Principal Rate (%) Time Interest $5,000 % 3 years $1,200
Thursday, September 18, 2014 at 8:00pm

math
There were 665 hot air balloon pilots at a hot air race . There were 1,550 more ground crew members than there were pilots. How many ground crew members than there were pilots. How many ground crew members were there?
Thursday, September 18, 2014 at 7:51pm

math
The manager turns the restaurants two neon signs on at the same time both signs blink as theyaare turned on. One sign blinks every 9 seconds and one sign blinks every firfteen seconds. How many seconds will they both blink together again?
Thursday, September 18, 2014 at 7:31pm

math
I am a whole number. when you add 3 to me you get a 2-digit number. The 2-digit number is the same as 3 four times. What number am I?
Thursday, September 18, 2014 at 6:33pm

math
if aluminum cans are 65 cents per pound and I have 50 pounds what does this equal
Thursday, September 18, 2014 at 6:30pm

Math
Julia saw 5 times as many cars as trucks in a parking lot. If she saw 30 cars and trucks altogether in the parking lot, how many were trucks?
Thursday, September 18, 2014 at 6:20pm

Math
p+12<9 Solve the inequality A. p>21 B. p>3 C. p>-21 D. p>-3 Is the answer D?
Thursday, September 18, 2014 at 5:52pm

Math
Translate the following statement into an inequality: Five less than a number is at least nine. A. x-5>9 this arrow has a line under it** B. x-9>5 C. x-5>9 D. x-5<9 this arrow has a line under it. Is the answer A??
Thursday, September 18, 2014 at 5:48pm

Math
A survey found that 12 out of 15 people prefer hamburgers over pizza. If 65 people are surveyed the next week, how many people will choose hamburgers? How do I work this problem?
Thursday, September 18, 2014 at 5:25pm

Math
p+12<9 Solve the inequality A. p>21 B. p>3 C. p>-21 D. p>-3 Is the answer D?
Thursday, September 18, 2014 at 5:25pm

Math
For N balls, m are black and the rest white,what is the probability that in the first n balls from N, 1 of them are black. Here m< N.
Thursday, September 18, 2014 at 5:20pm

Math
Solve each inequality y+5>7 The arrows are supposed to have lines under them but I can't figure out how to put them. A. y<2 B. y<12 C. y>2 D. y>12 Is the answer A?
Thursday, September 18, 2014 at 5:18pm

Math
m-7<6 Solve each inequality A. m<-1 B. m>1 C. m<13 D. m<-13 Is the answer C?
Thursday, September 18, 2014 at 5:07pm

Math
Calculate the dot product Ā·Ê(where Ê = Ē/E ~ is the unit vector in the direction of Ē ) and plot both Ā and Ê, showing how Ā·Ê is the projection of Ā on Ê. Ā= −4ˆi + 3ˆj Ē= 12...
Thursday, September 18, 2014 at 5:04pm

Math
1. Benny is setting up fish tanks at the pet store. He has 8 angel fish, 12 tiger barbs , and 24 guppies. If he wants to have the same number of each kind of fish in every tank, what is the greatest number of tanks he can set up?
Thursday, September 18, 2014 at 5:01pm

math:ratios
Lamika buysc12 packs of juice boxes that are on sale and pays a total of $48 by using ratio table to determine how much will Lamika pay to but a 8 more packs of juice boxes at the same store.
Thursday, September 18, 2014 at 5:00pm

math
John as building a new fence and wants it to stand 81/2 feet above ground level to make sure its secure he must place it 23/4 feet into the ground.how long of a post should john buy?
Thursday, September 18, 2014 at 4:58pm

Math: Pattern
Use the rule to write the first 12 terms in the pattern. Rule: Add 10,Subtract 5 First term: 11 (IM HAVING TROUBLE THIS IS ONE OF MY WEAKNESSES)
Thursday, September 18, 2014 at 4:54pm

Math
The perimeter of a rectangle is 122 feet and the length is 10 times longer than twice the width. Find the dimension.
Thursday, September 18, 2014 at 4:16pm

math calculus 3
find a formula for a function g( x,y,z) whose level surfaces are planes parallel to z=3x-2y+7
Thursday, September 18, 2014 at 4:11pm

math
stamjps are sold in bookiets of 100,50, and 10.find as many different ways to buy 200 stamps as you can. record your work in the chart. could you give me some examples...please!
Thursday, September 18, 2014 at 4:07pm

math 4th grade
Find two numbers the exact answer is between 3x567
Thursday, September 18, 2014 at 3:44pm

math
what is -18/-13
Thursday, September 18, 2014 at 3:34pm

math
What is the solution of the equation 4t=64?
Thursday, September 18, 2014 at 3:29pm

math grade 4
James has 12 seashells mounted in a row. The 6 shells in the center of the row are nautilus shells. Is there the same number of shells on either side of the nautilus shells?
Thursday, September 18, 2014 at 3:17pm

math
what is 1 fourth times 8
Thursday, September 18, 2014 at 2:19pm

Math
A designer is designing a cylindrical punching bag. He wants to use a maximum of 1.3m^2 of material. He has determined that the diameter of bag should be 36cm. Determine the maximum possible height of the bag to nearest tenth if a centimeter. Please help and show steps on how ...
Thursday, September 18, 2014 at 2:13pm

Math
a) the value of t1 and d (2 marks) b) an explicit formula for the general term (2 marks) c) t20 (2 marks) 3a, 3a – 2b, 3a – 4b, 3a – 6b, …
Thursday, September 18, 2014 at 1:56pm

Math
b) an explicit formula for the general term (2 marks) c) t20 (2 marks) 7/4, 1, 1-4, -1/2
Thursday, September 18, 2014 at 1:43pm

Math
Calculate the dot product Ā·Ê(where Ê = Ē/E ~ is the unit vector in the direction of Ē ) and plot both Ā and Ê, showing how Ā·Ê is the projection of Ā on Ê.
Thursday, September 18, 2014 at 1:40pm

Math
For each arithmetic sequence, determine a) the value of t1 and d (2 marks) b) an explicit formula for the general term (2 marks) c) t20 (2 marks) 7/4, 1, 1/4, -1/2
Thursday, September 18, 2014 at 1:38pm

Math
Determine whether each sequence is geometric, arithmetic, or neither. Justify your answer. 1/5, 1/4, 1/3,1/2,1
Thursday, September 18, 2014 at 1:38pm

Math
Find the value of term 1 given sum 8= - 3280a and the common ratio = - 3?
Thursday, September 18, 2014 at 12:47pm

math
What is (-7)^5 in expanded form? 1.-7*-7*-7*-7*-7 2.-7*5 3.(-7)*7*(-7)*7*-7 4.5*5*5*5*5*5*7 IS IT D
Thursday, September 18, 2014 at 12:43pm

Math
A Registered Education Savings Plan (RESP) earns interest at a rate of 5% per year, compounded annually. Jasmine’s parents invest $4000 in the account today. a) Determine an explicit formula to represent the value of the investment. (2 marks) b) Use your formula to write ...
Thursday, September 18, 2014 at 12:42pm

MATH WORD PROBLEM
Lisa needed to borrow money from Kim. Kim said to he would have to pay him back one and half times the original sum plus $20. Kim paid a total of $200. What was the original amount Lisa Borrowed?
Thursday, September 18, 2014 at 12:37pm

math
Which of the following situations describe quantities that combine to make 0? During the top of the fourth inning of a baseball game, the Ravens scored three runs. During the bottom of the fourth inning, the Raiders scored five runs to tie the game. Jacoby went on a hiking ...
Thursday, September 18, 2014 at 12:33pm

Math
The first prize in a lottery is $250 000. Each winner chosen after the first is paid 20% as much as the winner before them. b) Determine an explicit formula for the general term. (2 marks) c) Determine a formula for the sum of n terms of the geometric sequence. (2 marks) d) If...
Thursday, September 18, 2014 at 12:26pm

math
If sales tax is 1/16 of the price and the price is $16 how much tax do I pay?
Thursday, September 18, 2014 at 7:01am

math
3px-3pt-x+y
Thursday, September 18, 2014 at 6:52am

math
Each interior angle of a regular polygon is 140 degree. the number of sides of the polygon is?
Thursday, September 18, 2014 at 4:57am

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