Tuesday
May 24, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
Which function models the number of mold spores on the bread after x days?
Friday, April 15, 2016 by Samantha

math
A 12-foot flagpole casts a nine-foot shadow. What is the measure from the top of the shadow to the top of the flag pole? 15 21 3 6
Friday, April 15, 2016 by trent

Percent error math
Julian's measurement was 105 percent of 50 pounds and Amanda's measurement was 95 percent of 50 pounds. How many pound off were each? Do they have the same percent error? I got 5 percent error for both even though Amanda was -5
Friday, April 15, 2016 by Robin

Math (Mrs. Sue, please help?)
Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work. So, I know how to make a line of best fit-- how do I write the y-intercept or slope of it, though? Please, please help. The coordinate (tell me ...
Friday, April 15, 2016 by Reb

Math grade 7
The city treasury began with $1,100,000 at the beginning of the year. Each day since tax revenues have come in at a rate of 12,500 per day. Expenditures each day average 15,000 per day. The treasury now has less than1,000,000. How many days d has it been since the beginning of...
Friday, April 15, 2016 by Robin

Math
A particle moves along a straight line with a velocity, v ms/s, given by v = 4 - 8 sin 2t where t is the time in seconds after passing a fixed point O. 1. Determine the range of values of v.
Friday, April 15, 2016 by Johnson

Reverse math confused
Romita gets the sushi lunch special at Yoshi's. By using a coupon she receives $2.00 off the regular price p. Her total cost including 20 percent for tax and tip is $9.00. What is p the regular price of the lunch special?
Friday, April 15, 2016 by Lissette

Math Trig
use a double-angle formula to find the exact value of cos2u when sinu=5/13 , where pi/2<u<pi So far I went cos2u=1-sin^2 =1-2(25/169) =1-(50/169)
Thursday, April 14, 2016 by Larry

Math
A student cuts 1/3 of a coil of wire. He then cuts out another piece that was 8 meters long (I assume from the remaining coil). The two pieces of cut off wire are only half the total length of the wire. How long was the coil before the student cut it? I am getting 25, 50, to ...
Thursday, April 14, 2016 by Lulu

Math
Is this answer correct? What percent of .45 is .0015? the answer I got was 0.33%
Thursday, April 14, 2016 by Lea

Math
Genny babysits for two different families. One family paints her $6 an hour and a bonus of $20 at the end of the night. The other family pays her $3 every half hour and a bonus of $25 at the end of the night. Write and solve the system of equations that represent this ...
Thursday, April 14, 2016 by May

math
Martene got a small aquarium for her birthday. The aquarium is a right rectangular prism 18.5 cm long and 15cm wide.Martene put 3885 cm of water in the aquarium. How deep is the water in the aquarium?
Thursday, April 14, 2016 by rish

Math
Write the first trigonometric function in terms of the second for θ in the given quadrant. tan(θ), cos(θ); θ in Quadrant IV I believe to start this is 1/cos^2*theta. Am I write? If not, can you please help me?!
Thursday, April 14, 2016 by Jennifer

math
How do i find the radius of s circle with the circumference of 272.2 inches? can anyone help
Thursday, April 14, 2016 by Kailey

math
ty needs to cut strips of wrapping paper that are 9 inches wide. if ty has 2 rolls of wrapping paper that are each 15 feet long,how many 9 inch strips can he cut?
Thursday, April 14, 2016 by carson

math
Rewrite this formula using rational exponents. t = 2 pi sqrt 4/32 Thanks!!!
Thursday, April 14, 2016 by Jason

Math
An explorer descends to the deepest part of a cave. Then she ascends 25 feet per minute. After 3 minutes, she is at -195 feet. What is the depth of the cave?
Thursday, April 14, 2016 by A

Math
At the grocery store Mr and Mrs Bailey bought 24 apples and 18 pears. Write a ratio in simplest form to compare apples to pears
Thursday, April 14, 2016 by Melanie

Math
A farmer has 36 feet of fence to build a pigpen. He is going to use one of the sides of his barn as a side to the rectangular enclosure. Determine a function A that represents the total area of the enclosed region. What is the maximum area that can be enclosed?
Thursday, April 14, 2016 by Kate

math
to get ready for her 1 semester of school, brie spent a total of 7.92 dollars for eight identical notebooks. what was the cost of each notebook?
Thursday, April 14, 2016 by sckid30

math
in a school gym , 588 students were seated for an assembly in 21 equal rows. what number of students were stated in each row?
Thursday, April 14, 2016 by sckid30

Math
If the length of a rectangle is X and it's width is (X + 5) how does one determine it's area?
Thursday, April 14, 2016 by Greg Kuebler

Math
Okay, Nicole has tiles that are the same size and shape. *The probability of selecting a red tile is 25% and, *The probability of selecting a green tile is 40%. What is the probability that Nicole will randomly select a tile that is green, replace it, and then select a tile ...
Thursday, April 14, 2016 by Mindy

math
vernon spent $229.06 for groceries , and paid for his purchase five 50.00 bills. what amount of change should he have received
Thursday, April 14, 2016 by sckid30

math
Ricky's Pizza Parlor has three different sizes of pizza: a large (15 in. round), a medium (13 in round), and a small (10 in. round). A single-topping large pizza sells for $18. A single-topic medium pizza sells for $15 and a single-topping small pizza sells for $12. Which ...
Thursday, April 14, 2016 by Anonymous

math
X1, X2,...,X9 are nine points on the circumference of circle O. Line segments are drawn connecting each pair of points. What is the largest number of different points inside the circle at which at least two of these line segments intersect? (Remember that the points are not ...
Thursday, April 14, 2016 by AWESOMMEEE

math
7/8 of a pizza that have 12 slices how many left
Thursday, April 14, 2016 by carla

math
what dose this mean when you divide a decimal number by a whole number your estimate is 3.4 identify 3 possible pairs of numbers you might have been dividing ?
Thursday, April 14, 2016 by anonymous

math
Find p such that px^2-12x+4=0 has only one solution. Thank you!!!
Thursday, April 14, 2016 by Jane

Math - Please check!
1. Find the circumference of a circle with a diameter of 11 cm to the nearest hundredth. Measurement formula C = pi x diameter a. 34.54 cm *** b. 17.27 cm c. 5.5 cm d. 33 cm 2. Which of the following is an irrational number? a. square root 144 b. 0.25 c. square root 17 *** d. ...
Thursday, April 14, 2016 by Carlos

Math
1. The lengths of the three sides of a triangle are given. Classify each triangle as acute, right, or obtuse. NUMBERS: 30, 40, 50. I'm confused by this question, could someone help/explain what it is asking.
Thursday, April 14, 2016 by Tim

Math
an airplane is flying with an airspeed of 145 mph and a heading of 84.5 degrees. q wind of 24.6 omh is blowing at a heading of 68.4 degrees. find the ground speed and course of airplane
Thursday, April 14, 2016 by Ibrahim

math
What is the area of a rectangle with a width of (1)/(3) yd and a length of (9)/(10) yd
Thursday, April 14, 2016 by Bub

Math
One alloy is 2 parts iron to 3 parts silver and another alloy is 7 parts iron to 3 parts silver. How much of each should be combined to produce a 30 pound alloy that is 1 part iron to 1 part silver?Please show me how to do this
Thursday, April 14, 2016 by Bob

Math
Name the lengths of the sides of three rectangles with perimeters of 12 units. use only whole numbers
Thursday, April 14, 2016 by Mimi

math
What is the minimum value of the expression 2x^2+3y^2+8x-24y+62 for real x and y?
Thursday, April 14, 2016 by Lola

Math
Mary has 2/3 cup of chocolate chips. A cookie recipe calls for 1/2 cup of chocolate chips per batch. How many batches can bury make using all of her chocolate chips? Show your work and
Thursday, April 14, 2016 by Anonymous

Math
There are 10 purple, 5 yellow, 2 green, and 3 red jelly beans in a bowl. Write a sentence that explains how likely it is for a purple, red, or yellow to be chosen in one pick.
Thursday, April 14, 2016 by Camron

Math
The drama club is trying to raise $1428. On the first day they sell 12 tickets. They sell 4 more each day. Each ticket costs $3.50. Than how long is it going to take them to get to their goal?
Thursday, April 14, 2016 by Areej

Math - Help!
Which number is an irrational number? a. 0.12 b. 0.1257486… *** c. 0.12121212… d. 0.111111…
Thursday, April 14, 2016 by Carlos

Math
What is the domain of the function below? f(x) = (x + 4)^2 - 4 A. (-infinity sign, -4] B. [-4, infinity sign) C. [0, infinity sign) D. (-infinity sign, infinity sign) I believe the answer is either A or B, can someone please help me?
Thursday, April 14, 2016 by xxAnonymousxx

Math
Richard shot a homemade rocket from a field behind is house. The height of the rocket, in feet, t seconds after it left the ground is shown in the function below. r(t) = -30t + 390t What is the domain of the height function? A. (-infinity sign, infinity sign) B. (0,13) C. (0, ...
Thursday, April 14, 2016 by xxAnonymousxx

Math
A mixture of peanuts and walnuts sells for $3 per pound. How many pounds of peanuts at $1.50 per pound should be mixed with 12 pounds of walnuts at $4 per pound
Thursday, April 14, 2016 by Ty

math
A bucket holds somewhere between 100 and150 liters of water. If we fill as many as 3 liters containers we will be left with 1 liter of water, similarly is the case with 4 liters container and 5 liters container then what is the capacity of bucket
Thursday, April 14, 2016 by piyush

math
What is used to support the steps of a geometric proof? a) evidence based on observation or experiment b) measurement and observation of many cases c) postulates, definitions, given statements, and proven theorems d) steps in a geometric proof do not require support
Thursday, April 14, 2016 by hope

math
What's the interest rate for as loan of 150,000 euros for 10 years, with an interest payment of 22,000 euros?
Thursday, April 14, 2016 by Harold

Math
Kerry cut an 8ft board into 6 pieces that are equal in length represent the problem as a fraction
Thursday, April 14, 2016 by Kerry

Math
Samantha rides her bicycle 5 miles in 2 fifths of a hour at this rate how many miles could she ride in 2 hours
Thursday, April 14, 2016 by Preston

math
A homeowner is selecting a pool with a perimeter of 54 meter to place in his back gard. Find the perimeter of the pool If the dimensions are cut in half.
Thursday, April 14, 2016 by grace

Math
An Arc of length 6 cm subtends a 80 degree angle in a circle. What is the radius of the circle? Also what is the area of that sector? What I have so far: S=R*80 degree S= R*4pi/9 6 cm= r* 4pi/9 R=6/4pi/9 R= 6*9/4pi R=54/4pi HELP!
Thursday, April 14, 2016 by Jennifer

math
An ant has 6 legs and a Spider has 8 legs. In a insectarium display, there are some spiders and ants. From these spiders and ants, there are 60 legs altogether. how many spiders and ants could there be?
Thursday, April 14, 2016 by Javier

Math
John can paint a room in 3 hours. His apprentice, working alone, requires 6 hours to do the same job. How long would it take John and his apprentice, working together, to paint the room if they continue to work at the given rates?
Thursday, April 14, 2016 by Jessica

Math
A person went shopping and spent 5/8 of his money in the first store and then spent 1/5 of the remainder in the second store. If he spent $60 in the second store, how much did he have at the start and how much did he have left? I got a 240 but I am confused as to what it means...
Thursday, April 14, 2016 by jigsaw

math
using the concept of the walli's formula find the area bounded by the curve y=sinx and y=cosx from pi/4 to 5pi/4??
Thursday, April 14, 2016 by darnell

math
A table was sold for rs.2142at a gain of 5./..at wt price should it be sold to gain 10•\•
Thursday, April 14, 2016 by aasritha

rs aggarwal math class 8 chapter 8 soluation
in a fraction twince the numerator is 2 more than the denominator . if 3 is added to the numerator and to the denominator , the new fraction is 2/3 . find the original fraction.
Wednesday, April 13, 2016 by rs aggarwal class 8 math si

MATH I DONT UNDERSTAND PLZ HELP ASAP THX= }
From midnight to 6:00 am, the temperature rose 8 degrees c. at 6:00 am, the temperature was -20 degrees c. What was the temperature at midnight? ( I DONT UNDERSTAND! PLZ SHOW ME)
Wednesday, April 13, 2016 by Sparkles_01

Math
A spa is 9 yards long and 7 yards wide. A locker room 8 yards long and 6 yards wide is at one end of the spa. How much floor space do the spa and the locker room take up?
Wednesday, April 13, 2016 by Ashley

Math
For questions 1and 2, use integer values of x from -3 to 3 to graph the equation. 1. Y=-2x^2+3 (1 point)
Wednesday, April 13, 2016 by Cc23

Math
The floor of a delivery van has an area of 56 square feet and is 8 feet long. How many rows of 8 boxes that measure 1 foot by 1 foot can be put in the delivery van?
Wednesday, April 13, 2016 by Ashley

Math
Mr. Fried plans to give fruit flies to 6 groups of lab students for an experiment. He wants to give the same number of flies to each group. He has different size bottles. How can Mr. Fried give each group the same number of fruit flies without opening the bottles? 2 large ...
Wednesday, April 13, 2016 by Bub

Math
The perimeter of a rectangle is 21 inches. What is the measure of its width if its length is 3 inches greater than its width?..... Please help me solve this question...
Wednesday, April 13, 2016 by Vali

Math
Two angles are supplementary. The measure of one is 30 more than twice the measure of the other. Find the measure of the larger angle.......... Please help ! I need this answer!
Wednesday, April 13, 2016 by Vali

Math
Jose has a 120-inch roll of wrapping paper. He needs an 18-inch piece to wrap each present. Does Jose have enough to wrap 7 presents? I divided 120÷18 and got 6.66 but if I round 6.66 to 7, will the answer be yes?
Wednesday, April 13, 2016 by Bub

Math/ weight measurement
how many 4-ounce bags of peanuts can be filled from a 5-pound bag of peanuts?
Wednesday, April 13, 2016 by Farhan

math
Sarah is lining a square tray with 1 inch square tiles.The side length of the tray is 9 inches.How many tiles does Sarah needs?
Wednesday, April 13, 2016 by Monica Martinez

CONSUMER MATH
You are offered $12,000 for an annuity at 3.9% compounded monthly for 6 yrs what would the monthly payments be?
Wednesday, April 13, 2016 by Bryant

Math
A blueprint scale is 1/4 inches = 1ft. If the blueprint measurement is 3 in x 3 in, what should you cut?
Wednesday, April 13, 2016 by Victoria

Math
Annette buys swim goggles for her swim team at a wholesale store. There are 25 swimmers and the swim goggles are sold in a package of 6. Annette wants to give each swimmer 2 swim goggles, therefore, she buys 9 packages. Is Annette correct? Explain.
Wednesday, April 13, 2016 by Bub

Math
A man 1.4m tall looks at a bird on a tower at an angle of elevation of 45`.If the man is 10m away from the tower,how tall is that tower
Wednesday, April 13, 2016 by Victory

Math
how many feet of fencing are needed to enclose a swimming pool that has a 25-ft diameter of there is a 2.5 ft deck between the edge of the pool and the fence ?
Wednesday, April 13, 2016 by Ahnia

Math
Fran and 5 friends must share 3 liters of water. How much water will each person get?
Wednesday, April 13, 2016 by Bub

math
Jordan travels X of a mile longer to school each day than Harrison does. combined they travel 5 1/4 miles to school how far does each travel.
Wednesday, April 13, 2016 by lay

Math
Eric's friend Dawn said that she could make a larger number of different designs with 15 tiles with Eric's 13 tiles. Do you agree with Dawn? Explain.
Wednesday, April 13, 2016 by Anonymous

Math
A car dealer makes a 12% commission on every car sold. If the dealer sells a car for $10,000, how much does he make in commission?
Wednesday, April 13, 2016 by Liz

Math
The two shortest sides of a right triangle are 10 in and 24 in long. What is the legnth if the shortest side of a similar triangle whose two longest sides are 36 in and 39 in?
Wednesday, April 13, 2016 by Molly

math
My values are: 0.075 0.025 0.1 0.075 0.1 0.125 0.05 0.125 0.025 0.15 0.125 0.025 What would be an appropriate scale to go by on a bar graph.@bobpursely suggested 40:1 what does this mean???
Wednesday, April 13, 2016 by Rose

7th Grade Math
I need help with solving the answer to the problem below. What is the percent decrease, to the nearest percent, of the number of books checked out from June to July? June - 623(# of books checked out) July - 715(# of books checked out)
Wednesday, April 13, 2016 by Tina

Math
Terry buys a shirt for $14.99 and a pair of jeans for $39.99. If the sales tax is 8.25%, what is the total price Terry pays for the items? Can someone please show me how to work this problem?
Wednesday, April 13, 2016 by Sarah

math
p=5x3^n can you answer this
Wednesday, April 13, 2016 by samuel

Math
My values are: 0.075 0.025 0.1 0.075 0.1 0.125 0.05 0.125 0.025 0.15 0.125 0.025 What would be an appropriate scale to go by on a bar graph.
Wednesday, April 13, 2016 by Rose

math
the volume of a rectangular prism is 2,058 cm3. The length of the prism is three times the width. The height is 14 centimeters. Find the other dimensions
Wednesday, April 13, 2016 by Joseph

math
sally put red ,white,and blue handkerchiefs in a drawer. One-third of the hand kerchiefs were red ,one -fourth of the hamdkerchiefs were white and ten were blue. how many handkerchiefs of each color were there?
Wednesday, April 13, 2016 by ali

Math
I have a number line. 0-------.5---------1. I also have 1/10, 2/10, 4/10 and 5/10. I am trying to make sure I have them in order and the correct placement on the number line.
Wednesday, April 13, 2016 by Doyle

Math
The circle below is divided into 8 equal parts. What is the measure of the angle shown by the shaded section? A. 45° B. 145° C. 40° D. 90°
Wednesday, April 13, 2016 by Glitter

Math help
I have 12 guests for a party. I want everyone to have 4/5 of a cup of juice. How many cups of juice will I need?
Wednesday, April 13, 2016 by Doyle

Math
An equilateral triangle has a perimeter of 45 ft. What is the length of ach side of the triangle?
Wednesday, April 13, 2016 by Katerine

math
a vase is in the shape of a cone that is 10 inches tall with a diameter of 3 inches. what is the greatest amount of water the vase can hold a.) 23.56 in.^3 b.) 54.72 in.^3 c.) 70.65 in.^3 d.) 94.25 in.^3
Wednesday, April 13, 2016 by Sam

math
most unsharpened pencils are hexagonal prisms. describe a vertical and horizontal cross section of a pencil
Wednesday, April 13, 2016 by Joseph

Math
9.)Which hill described in the table is the steepest? Explain.' (Table) Street Horizontal Distance (ft) Vertical Rise Dixie Hill 60 20 Bell Hill 60 40 Liberty Hill 60 30 A.)Bel Hill; it rises 2/3 ft for every 1 food of horizontal travel. B.)Dixie Hill; it rises 1 foot for ...
Wednesday, April 13, 2016 by #FreeGucci

Math
Round 1.98 to the nearest tenth
Wednesday, April 13, 2016 by Daisy

Math
A wheel has a radius of 5ft. How many revolutions would it take for the wheel to roll 62.3 ft.? Round your answer to the nearest tenth.
Wednesday, April 13, 2016 by Daisy

math
A can of soup is in the shape of a cylinder with a radius of 3.2 centimeters and a height of 10.2 centimeters. The label covers the entire lateral surface of the can. What is the approximate area of the label? a.) 32.64 cm^2 b.) 64.34 cm^2 c.) 205.08 cm^2 d.) 269.42 cm^2
Wednesday, April 13, 2016 by Sam

Math
Can u please help me with all the answers to the final LEAP exam for 6th grade
Wednesday, April 13, 2016 by Mari

Math help!
Find the function rule. X -2 -1 0 1 2 Y 9 4 -1 -6 -11
Wednesday, April 13, 2016 by latoya

Math
Write a rule for the function represented by the table. Input(×) 0 1 2 3 4 Output(y)3 6 9 12 15 A.y=3× B.y=3×+3 C.y=5×+1 D.y=×+5
Wednesday, April 13, 2016 by latoya

Math help
A DVD store charges $4.70 for each day, d, a DVD is rented. The store also gives you a dollar off it the DVD is returned before 5 days. a. Write a rule to represent the rental charges C. b. How much will you pay if you return the dvd after 4 days? 7 days?
Wednesday, April 13, 2016 by latoya

Math
How do you write 200 7/100 as a decimal?!?
Wednesday, April 13, 2016 by Autumn

math 7th grade
Ingrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. She divides the trail mix into 12 equal portions. Each portion weighs 0.7 pound. How many pounds of raisins did she use to make the trail mix? Express the answer to the nearest tenth.
Wednesday, April 13, 2016 by maddie

MATH
Your friend asks you to help cut grass this summer and will pay you 2 pennies for the first job. You agree to help if he doubles your payment for each job completed. After 2 lawns, you will receive 4 pennies, and after 3 lawns, you will receive 8 pennies.
Wednesday, April 13, 2016 by RAWAA

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