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February 12, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math "Need Help Asap"!
19. WorkPad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. You can use the comments field to explain your work. Your teacher ...
Thursday, December 17, 2015 by Markest Lee

Math "Need Help Asap"!
Geometry Unit Practice Sheet Multiple Choice Use the figure to answer questions 1–3. 1. Name a pair of complementary angles. (1 point) 1 and 4 1 and 6 3 and 4 4 and 5 2. If m1=37°, what is m4? (1 point) 53° 43° 37° 27° 3. If m1 = 40°, what is m5? (...
Thursday, December 17, 2015 by Markest Lee

math
the scale model of a building is 5.4ft tall. if the original building is 810 meters tall what was the scale used to make the model
Thursday, December 17, 2015 by Anonymous

Math
Zip codes beginning with two second numbers is limited to one through five no other restrictions how many possible combinations for the zip code
Thursday, December 17, 2015 by Anonymous

Math
19. WorkPad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. You can use the comments field to explain your work. Your teacher ...
Thursday, December 17, 2015 by YRN DJ

Math
1. Name a pair of complementary angles. (1 point) 1 and 4 1 and 6 3 and 4 4 and 5 2. If m1=37°, what is m4? (1 point) 53° 43° 37° 27° 3. If m1 = 40°, what is m5? (1 point) 50° 40° 35° 25° Use the figure to answer questions 4–5. ...
Thursday, December 17, 2015 by YRN DJ

math
In Rosa's class,there are 15 boys and 12 girls. On Wednesday,all the girls were present and 1/5 of the boys were absent. How many students were in class today
Thursday, December 17, 2015 by ela

Math
For questions 1 and 2 choose the equation or proportion that you can use to solve the problem: What number is 73% of 215? A.215 = 0.73 B.n = 0.73 × 215 C.0.73 = nx215
Thursday, December 17, 2015 by Johnny McKarron is cool

Comm Tech
1.)Marla remembers her tuesday class schedule by using the acronym Mest . Which of the following might be her class schedule? A.)Math,Social Studies, English,Technology B.)Math,English, Social Studies,Science, Technology C.)Math,English,Social Studies,Technology D.)Math,Social...
Thursday, December 17, 2015 by YRN DJ

math
the scientific notatio of velocity of light velocity of sound distance between the sun and earth
Thursday, December 17, 2015 by amulya

Math
vector a has magnitude 1 and vector b has magnitude 16m. Their scalar product is 90.0m^2. What is the magnitude of the vector product between these 2 vectors?
Thursday, December 17, 2015 by Lovelle

Math
Find the equation of the line that is perpendicular y=3/5x-4 that passes through the point (-1,3) I forgot how to do this. Please help
Thursday, December 17, 2015 by Anonymous

math
A truck driver drive 49 miles in 1 1/3 hours. What was the average speed in miles per hour for this trip? Write the answer as a mixed fraction.
Thursday, December 17, 2015 by Ty

math
According to a map, the distance between Hilltop and Valleyfloor is 1 3/4 inches. If the map uses a scale of ¼ inch to represent 1 mile, what is the actual distance in miles from Hilltop to Valleyfloor?
Thursday, December 17, 2015 by sharday

math
An object that weighs about 2.1 pounds on the moon weighed 12.56 pounds on Earth. About how much would an astronaut who weighs 174 pounds on Earth weigh on the moon?
Thursday, December 17, 2015 by sharday

Math
x=square footage of a house y=asking price in thousands of the house. x goes from 1200 square feet to 1500 square feet. the regression equation is y^= .0686x+83.24 A. what are the explanatory and response variables? B. Interpret the slope. C. Is it reasonable to interpret the ...
Thursday, December 17, 2015 by Trisha

math
Sandy asked a printing company to enlarge a drawing to 130% of its original size. If the width of the original drawing was 35 centimeters, what is the width of the copy of the drawing?
Thursday, December 17, 2015 by sharday

Math
Maddy’s loaf tin has three partitioned areas in which to bake three loaves. The outside of the tin along with the partitions is made of 80 inches of material. The area of the entire loaf tin is 192 in2. What are the possible outer dimensions of the loaf tin?
Wednesday, December 16, 2015 by Lily

math
Kim bought a total of 32 cookies. Each cookie costs $.65, including tax. Of the cookies she bought, 3/8 were lemon cookies. What was the total cost of only the lemon cookies?
Wednesday, December 16, 2015 by sharday

Math
5+3+2+4+40·1-1/8
Wednesday, December 16, 2015 by Daniel

Math
Make the following changes to the number 2.614. The 1 is worth one tenth as much. The 4 is worth 10 times as much The 2 is worth one tenth as much Make the 6 worth 10 times as much So I'm not sdure if my answer I'd 6.241 or .6241
Wednesday, December 16, 2015 by Barbara

math
A box contains 18 marbles, 8 red, 4 green, & 6 white. What is the smallest number of marbles that must be selected to have one of each color marble?
Wednesday, December 16, 2015 by Ken

math
3(x+6)-5=16
Wednesday, December 16, 2015 by Anonymous

Math
Find an equation for the tangent to the curve y=1+ (sqrt2)(csc(X)) + cot(X). I just learned, though my teacher wasn't super good with explaining, derivatives for trig functions but they still aren't making too much sense. Could you please give me a step by step ...
Wednesday, December 16, 2015 by Cindy

Math
There is a 100 question multiple choice test each with 5 choices. You randomly guess each question. Set up the binomial probability formula to find the probability of getting exactly 80 correct out of 100. Check to see if you can use the normal approximation to binomial ...
Wednesday, December 16, 2015 by Trisha

Math
Hillside has 12 teams. Each team plays each other teams twice. How many games are played?
Wednesday, December 16, 2015 by Sandy

Math
If a bag of rice is 20 pounds and it costs $8.92, then how much would 1 pound of rice cost?
Wednesday, December 16, 2015 by Daisy205

Math
The ski trip has to be cancelled. All 28 people must be told. In the first hour 2 people each call 2 people. The next hour each of the people called the hour before calls 2 people, and so on. How many hours will it take for all 28 people to be called?
Wednesday, December 16, 2015 by Sandy

math
how many different words can be made from the word winter without repetition
Wednesday, December 16, 2015 by Anonymous

Math
The table shows the number of miles driven over time. Time (hours)----------Distance (miles) 4---------------------232 6---------------------348 8---------------------464 10--------------------580 Express the relationship between distance and time in simplified form as a unit ...
Wednesday, December 16, 2015 by Kaai97

Math
what is the slope of the line that passes through the pair of points (-7/2, -3) and (-5, 5/2)? a. 6/22*** b. -6/22 c. 22/6 d. -22/6
Wednesday, December 16, 2015 by Kaai97

math
write a problem about going to the laundromat that has a hidden question. a single load of laundry costs $2 and a double load costs $4.explain how you solved your problem.
Wednesday, December 16, 2015 by Michelle

math
Find the intervals, inflection points and concavity for the following points. y=-2x^4+3x^2 I have the derivative: -24x^2+6
Wednesday, December 16, 2015 by Steffi

math
how many different words can be made from the word winter without repetition
Wednesday, December 16, 2015 by kayla

Math
1) X/4+10=14 A)96 B)46 C)16 D)-16 2) 2(2-2x)=-3x A)-4 B)4 C)6 D)0 3) 3.75x+3.7=1.7+1.75x A)10 B)-1 C)1 D).1 Answers : B C C ???
Wednesday, December 16, 2015 by Math help

Math
X/3-10=-12 A)-6 B)-66 C)6 D)66 Is it a???
Wednesday, December 16, 2015 by Help please

Math
-9x-5=-95 A) 17 B) 11 C) 10 D) -10 Is the answer c??
Wednesday, December 16, 2015 by Help please

math
12. For the right triangle in Fig. 4 find the two missing internal angles. 3x+2 5x+8 90°
Wednesday, December 16, 2015 by Anonymous

math
Two flagpoles have 20 ft. and 25 ft. shadows respectively. If the shorter flagpole is 52 ft. tall, how high is the taller flagpole?
Wednesday, December 16, 2015 by pat

Easy Math
Q. Sean used three fourth cup of sugar to make a dozen brownies. How much sugar is in each brownie? ((three is numerator and fourth is demonator)) Choose Between Division, subtraction, mulipcation, or addition. Answer: Addition.
Wednesday, December 16, 2015 by Cameron

Math
If the temperature was -10F and dropped by 16F what would the temperature be?
Wednesday, December 16, 2015 by Joseph

math
write an expression that shows how to multiply 4 X 362 using place value and expanded form.
Wednesday, December 16, 2015 by Emilio

math
orgo has let out 50 meters of kite string when he observes that his kite is directly above zorna. if orgo is 35 meters from zorna, how high is the kite ?
Wednesday, December 16, 2015 by gabby

5th grade math
The fifth-grade class at John Adams Middle School earned $428.81 at their school carnival. The money is being divided between 23 students to help pay for their class trip. How much money will each student receive? Round to the nearest hundredth. is it $18.60 ?
Wednesday, December 16, 2015 by patricia

Discrete Math
A quiz consists of 3 multiple choice questions, each of which have 10 answer choices. You are allowed three attempts at the quiz. What is the probability that someone would end up with a perfect score for the quiz simply by guessing the answers?
Wednesday, December 16, 2015 by C

MATH
hi i need help: explain how using a spinner would help find the experimental probability that a soccer player will score a goal on a penalty kick. Suppose the player makes 75% of his of his penalty kicks.
Wednesday, December 16, 2015 by olivia

Math
Find the slope of the line that passes through each pair of points. (-3,-2), (-3,2)
Wednesday, December 16, 2015 by Octavio

Math 6/7
When would it be easier to write a percent as a fraction rater than a decimal.
Wednesday, December 16, 2015 by Versace

Math
Find all critical points and determine which critical points are extrema by testing intervals. y=-2x^4+3x^2 I found the derivative which is: -8x^3+6x
Wednesday, December 16, 2015 by Steffi

math
Mimi's market sold 24 heads of lettuce one morning. That afternoon 2/7 of the remaining heads of lettuce were sold. The number of heads left is now 1/2 of the number the market had at the beginning of the day. How many heads of lettuce were there at the beginning of the ...
Wednesday, December 16, 2015 by Zachary

math please help i'm new
What is the diagonal of a 9 in x 12 in rectangle?
Wednesday, December 16, 2015 by Anon

math app
A salmon can swim 20 feet/sec downstream in a river. The salmon swims upstream at a rate of 6 feet/sec. Find the speed of the current. How do I set up the equation?
Wednesday, December 16, 2015 by Alex

Math
$33.00 to $45.00 Answers: A. 35.6% B. 4.0% C. 12.0% D. 36.4% My Answer: C-12.0%
Wednesday, December 16, 2015 by Lavvie

Math
James wants to buy a video game system that costs $310.00. His Parents say James must raise 45% himself. How much money must James raise? (1 point) A: $124.00 B: $135,00 C: $139.50*** D: $170.50
Wednesday, December 16, 2015 by Star Wars Geek

math + ms. sue please
AB = 15 feet - horizontal BC = 3 feet - vertical DE = ? - vertical a.) 5 feet b.) 8 feet • my answer c.) 9 feet d.) 25 feet diagram in next post
Wednesday, December 16, 2015 by abx

Math
Find the volume. 1. 2ft, 4ft, 5ft V= 2. 4cm, 4cm, 9cm v= 3. 6in, 6in, 6in V= 4. 4ft, 12ft, 4ft V= I need help on the above and do not know where to begin. Please help
Wednesday, December 16, 2015 by Patrick

Math
So this is a math quiz I took a few months ago and they said I can redo it, but I have to explain why the correct answer is correct... And idk. Which equation represents 15 more than r is 61? The answer is r + 15 = 61 but idk why? What is the value of 4^2 -2 (3 x 5 + 1) The ...
Wednesday, December 16, 2015 by Megan

Math
The ratio of z sides of two similar polygon is 3:2 the area of the smaller polygon is 24cm square what is the area of larger polygon
Wednesday, December 16, 2015 by Hermella

math
use a centimeter squared paper to create as many different rectangle as you can with a perimeter of 18 cm find the area of each rectangle.
Wednesday, December 16, 2015 by nisu

math
tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work? solution please
Wednesday, December 16, 2015 by lucky

math
tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work? #please give it, the complete solution. please hurry
Wednesday, December 16, 2015 by lucky

math
A popular snack food reduced the amount of sodium in one serving from 700 milligrams to 480 milligrams. What is the percent decrease in the amount of sodium in this snack?
Wednesday, December 16, 2015 by sharday

Math
Simplify (2^-5 x 2^-6)1/2 Help I'm confused!
Tuesday, December 15, 2015 by Ella

math
You are still debating about the two different computers. If you are paid $15.00/hour and your deductions are FICA (7.65%), federal tax withholding (12%), and state tax withholding (8%), how many hours do you have to work to pay for the new computer? Be sure to include the ...
Tuesday, December 15, 2015 by jess

math
There is a number between 10 and 100. The number is 8 times the sum of its digit.If 45 is subtracted from it , the result is number formed by interchanging its digit.Find the number. soln Let the number be x , let the sumb be y 8x= y so 8x/y - 45 = yx
Tuesday, December 15, 2015 by Sujan

Math
Barbara can walk 3200 m in 24 minutes how far can she walk in three minutes
Tuesday, December 15, 2015 by Amy

Math
Carol has a piece of yarn that measures 1 yard and 8 inches. How many inches of yarn does Carol have?
Tuesday, December 15, 2015 by Rozja

Math
A candy machine contains 5 times the number of nickels in dimes and is less than 16 the number of quarters. Total value is $12.80. How many are there nickels and dimes? I can't understand what means 5 times the number of nickels in dimes. How do you put nickels in dimes? ...
Tuesday, December 15, 2015 by Andrew

Math
Missy's piece of ribbon measures 1 yard and 3 inches. How many inches of ribbon does she have?
Tuesday, December 15, 2015 by Rozja

math
what is the product of the number 27
Tuesday, December 15, 2015 by tom

math
the diagram shows triangle ABC point c has coordinates (4,7) and the equation of the line AB is x+2y=8 find the coordinates of B
Tuesday, December 15, 2015 by Gynie

math
trying to do an array for 465 x 4 not come out with the correct answer doing my array but know the correct answer 465x4 = 2325
Tuesday, December 15, 2015 by brittanie

Math
Ira built a model of the great pyramid in Egypt for a school project. The great pyramid had a square base with sides of length 756feet the height of the great pyramid is 481 feet Ira made his model pyramid using a scale of 1 inch :20 feet A.what is the length of each side of ...
Tuesday, December 15, 2015 by Anonymous

math 7+
Trevor's sister is 1/8 the height of a 40-foot dinosaur. She is A. 6 feet tall B. 5.5 feet tall C. 5.3 feet tall D. 5 feet tall So that is my homework question i dont understand how to make a propotion to answer the question.
Tuesday, December 15, 2015 by mikayla

Math 5th
Toby needs to bike 3 miles a day. He rides 1 5/8 miles to school, then 1/2 to the store. how many more miles does Toby need to ride to get 3 miles. Do I Add or multiply. Help
Tuesday, December 15, 2015 by Shawn

math
i cannot solve the math question i was given. Problem: a chef has to divide 5 heads of lettuce on 12 plates, this answer is to be afraction.
Tuesday, December 15, 2015 by dominick

math
PART A)find x using the ratio of the sides 12 cm and 16 cm: x/20=12/16. Show your work PART B) find x using the ratio of the sides 6 cm and 8 cm. Show your work PART C) Explain why the answers to a and b should be the same The triangles are 1st one x,12 cm, 6cm, the 2nd one is...
Tuesday, December 15, 2015 by help

MATH
PART A)find x using the ratio of the sides 12 cm and 16 cm: x/20=12/16. Show your work PART B) find x using the ratio of the sides 6 cm and 8 cm. Show your work PART C) Explain why the answers to a and b should be the same The triangles are 1st one x,12 cm, 6cm, the 2nd one is...
Tuesday, December 15, 2015 by SHEILA LE BUFF

Math
How can I succeed in my positive and negative unit?
Tuesday, December 15, 2015 by Mercedes

Math
Ms. Williams has 3 liters of lemonade. She wants to divide the lemonade into eight portions to give her 8 grandchildren. How can she divide the lemonade into eight equal portions
Tuesday, December 15, 2015 by Shay

Math
Adeline wrote a four digit number. The digit in the thousands place is 3 more than the digit in the hundreds place. The digits in the hundreds place is 2 less than the digit in the tens place. The digit in the tens place is 2 less than the digit in the ones place. The sum of ...
Tuesday, December 15, 2015 by Aepps

Math
What would you round 1.50 to
Tuesday, December 15, 2015 by Daisy205

Math
What is the full definition of number sentence
Tuesday, December 15, 2015 by Daisy205

maTH
PART A)find x using the ratio of the sides 12 cm and 16 cm: x/20=12/16. Show your work PART B) find x using the ratio of the sides 6 cm and 8 cm. Show your work PART C) Explain why the answers to a and b should be the same The triangles are 1st one x,12 cm, 6cm, the 2nd one is...
Tuesday, December 15, 2015 by SHEILA LE BUFF

Math
Missing base 1/9= [. ] with exponent 2 please explain how I can get the answer thanks
Tuesday, December 15, 2015 by Brian

Math
Missing exponent of 1/169=(1/13) please explain how I can find the missing exponent
Tuesday, December 15, 2015 by Brian

Math
The base of a triangle is three inches more than its height. If each is increased by 3 inches the area of the triangle (1/2 bh) is 14 square inches. Find the original base (𝑏) and the original height (ℎ) in inches. (Lesson 15)
Tuesday, December 15, 2015 by Help Please!

Math
Sarah is simplifying the rational expression 3x + 6 ----------- 3x She cancels the 3x's and states that the answer is 6. Matt tells her that she is incorrect. What is one example that he could use to show her that this is incorrect? 4 + 6 ------- ≠ 6 4 B) 6 ------ &#...
Tuesday, December 15, 2015 by Neal

Math
N is a variable and everytime a scouts sales a box they get back 0.64$and N is a variable so what's the algebraic expression for this one in math
Tuesday, December 15, 2015 by Malia

math
Patsy has cheer-leading practice every fourth day. She wants to be in the school play, but they have practice every sixth day. If both start on September 5th, what would be the next date she has to choose between cheer-leading and play practice? Explain. This is really ...
Tuesday, December 15, 2015 by jena

math
the annual per capita consumption of fresh oranges in pounds in the united states can be approximated by a normal distribution, with a mean of 9.9 pounds and a standard deviation of 2.5 pounds. what largest annual per capita consumption of oranges that can be in the bottom 5% ...
Tuesday, December 15, 2015 by Anonymous

math
Mr. Smith buys pencils at Rs 250 per hundred and sells each at Rs 1.75.Findd his loss or profit. David bought 2 dozen eggs for Rs 56. Since 6 of them broke, he incurred a loss of Rs 20 on selling them. What was the selling g price of one egg? Pls help me !
Tuesday, December 15, 2015 by jyoti

Math
Check my answers? a)Use the data shown above and express in words the amount the cab company charges per ride and per mile. cost = mx + b b)Write an equation in slope-intercept, point-slope, or standard form. Explain why you chose the form you did. cost = m (1) + b cost = 1.10...
Tuesday, December 15, 2015 by Sage

Math
The sides of a square are increased by a scale factor of 6. The perimeter of the smaller square is 10ft. What is the perimeter of the larger sqaure?
Tuesday, December 15, 2015 by Help

7th grade math
electrical wire: $1.49 for 3 ft $.69 for 18 in which is a better buy?
Tuesday, December 15, 2015 by Emmy

Math
A pharmacist is to prepare 30 milliliters of a solution with a drug concentration of 2 mg/mL. To do so, he will mix a solution with a drug concentration of 7 mg/mL with grape-flavored syrup. If 𝑥 represents the number of milliliters of grape-flavored syrup needed, find...
Tuesday, December 15, 2015 by Help Please!

7th grade math
c. Find x using the ratios of the sides 6cm and 8cm. Show your work. Im having trouble solving this problem, mostly because im not sure what function to use. If i could get some help on this it would be appreciated.
Tuesday, December 15, 2015 by Space Dandy

Math
Is the set o,2,5,8 closed under 0?
Tuesday, December 15, 2015 by Arial

Math
From the top of a 200 foot building, a bird is sighted overhead and a man is observed directly below the bird at ground level. The angle of elevation of the bird is 16*, and the angle of depression of the man is 43* find : a) the distance from the top of the building to the ...
Tuesday, December 15, 2015 by Anonymous

connection academy math
In the diagram below, jill lives on street q and samantha lives on street r. Since street p is a transveral for streers q and r. which term describes the location of the angle of samanthas friends' house? Please,please help if you have the answers to this whole test or ...
Tuesday, December 15, 2015 by HELP PLEASE

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