# Math

## Recent Questions

**Math**

A recipe calls for 3 cups of milk for 4 pancakes. To use this recipe to make 16 pancakes, how many cups of milk are needed?

**Math/Physics**

How would you solve this? 1/2 mv^2 - 1/2 m x 25 = mg x 100sin20 I obtained this from the question: A girl on a sledge starts, with a speed of 5 m/s, at the top of a slope of length 100 m which is at an angle of 20 degrees to the horizontal. The sledge slides directly down the ...

**Math**

Greg is buying a bike on a payment plan. the equation y=20x+600 models the amount he has left to pay, where x is the number of weeks and y is the amount of money owed in dollars. Lin is also buying a bike on a payment plan. The bike costs $500. She will pay $25 each week. ...

**Math**

Sandra needs 2 5/8 yards of rope she needs for her class project. She has 5 pieces of rope that are each 3/8 yards long. Does Sandra have enough rope. If not explain why. My son wrote no she doesn’t she needs 18 more yards of rope. Can you explain this to him if this is ...

**math**

how many liters of a 60% antifreeze solution should be added to 9 liters of a 30% solution to get a 50% antifreeze solution

**Math**

Show me a picture grid of 1.8 divided by 0.6

**Math**

In order to compare to function to determine which has the greater output for the input 0, which characteristic of the function should be compared? a) rate of exchange b) slope c) x-intercept d) y-intercept is it the y-intercept?

**math**

Evaluate (2.1 x 10^4) + (5.68 x 10^-2)Express the result in standard form. Can you explain your steps? I don't understand how to solve this with the negative 2

**Math**

How do you rotate a point other than the origin? Can you give me a video or explain it?

**Math**

Does the table represent an exponential function? x 1 2 3 4 y –1 –8 –27 –64 a. yes b. no***

**Math**

Karen read 20 pages of her book in a half hour if she reads for 3 hours at that same rate about how many pages of her book can she read

**math**

how do you find the shape, center, variability, and outliers of a histogram?

**Math**

A group of 8 Office Workers order 12 packs of sushi from The lucal japanes restant for lunch if the packs of sushi are shared equally.What fraction of packs Will each Office Works Will git?

**Math**

there's a special at the store $34 for 7 roses Harry is trying to figure it out if it is a good deal help Harry figure it out the unit price ( round to w decimal places) A. $0.49 per rose B. $4.86 per rose C.4.89 roses per dollar D.0.49 roses per dollar

**math**

Three numbers multiplied together equal 2880. A X B X C= 2880 A X B=360 A X C= 160 A= B= C=

**Math**

Ms. Sue did you look file:///C:/Users/Student/Downloads/IMG_0976.JPG Link 2. file:///C:/Users/Student/Downloads/IMG_0977.JPG Link 3. file:///C:/Users/Student/Downloads/IMG_0978.JPG

**math**

Write an equation in point-slope form for the line through the given point with the given slope. (-4,6); m=3/4 a. y-6=3/4x+4 b. y-6=3/4(x-4) c. y-6=3/4(x+4) d. y+6=3/4(x+4) I am unaware of what the answer could be to this problem and help will be very appreciated. Thank you!

**math**

The science club sold 35 T-shirts last week and 28 T-shirts this week. What is the percentage of decrease in the number of T-shirts sold?

**Math**

Micah has a new remotely controlled car that has a circular range with a radius of 30 feet. What is the area of the circular range?

**math**

i will roll a fair 6-sided dice. Writing your answers as fractions in their lowest terms, what is the probability of rolling: 1) a 4? 2) an even number? 3) a 7? 4) number less than 5? 5) number less than 10?

**Math**

What is the solution of the following equation? 2 – 8x = -6 Is the ordered pair (-2, 9) a solution of the equation y = x - 7? Solve the following equation. 3(z – 2) – z = 4z – 20 Find the slope of the line that passes through the points (4, 8) and (10, 5) using the ...

**Math**

What is the simplified form of the following expression? -(7x – 4y)

**Math**

What is the simplified form of the following expression? 2x^2y + 3x^2 + 4y + 3x^2y + 2y

**math**

In a pack of 52 cards, what is the ratio of: 1) hearts to the other suits? 2) aces to the other cards?

**math**

If the area of a square is 225cm2 what is the length of one side? i am not sure how to make the 2 squared.

**math**

a gun is fired at a distance of 24.3km away from man. he hears the sound after 27 second. find the speed of sound at which it travels.

**Math**

lucy made 1268 paper cranes. john made twice as many paper cranes as lucy. how many paper cranes must john give to lucy so that they would have the same number of paper cranes

**Math**

Lisa went to the hardware store and bought 12 pieces rope. Each rope was 3 - 4 of a meter long. If the rope cost $3.50 a meter, how much did she spend? if i could get some help with this thatd be great :)

**Math**

1. Solve each absolute value equation or inequality and choose the correct answer from the choices provided. |x| + 5 = 18 (1 point) 5 or –5 13 or –13 18 or –18 23 or –23 2. |x + 3| < 5 (1 point) –8 < x < 2 –2 < x < 8 3 < x < 5 –3 < x < ...

**Matrix, math**

A = 2 x 2 -1 0 0 -1 find n that A^n * B = C B = 2 x 1 0 1 C = 2 x 1 1 0 answer is 6, but I don't know why find A^2014 the answer is 0 1 -1 0 but I don't know why

**Matrix, math**

I have matrix A = -1 0 0 -1 B = 0 1 c = 1 0 find n that A^n * matrix B = C find A^2014

**math**

Find the geometric mean of the pair of numbers below. If necessary, give the answer in simplest radical form. 5 and 18

**math - trig/pythagoras**

A piece of flat pastry is cut in the shape of a right-angled triangle. The longest side is 6b cm and the shortest is 2b cm a) Find the length of the third side. b) Prove that the area of the triangle is equal to 4√2b^2 cm^2.

**Math**

1) Maria is 6 times as old as Tina. In twenty years, Maria will be only twice as old as Tina. How old is Maria now? Please explain how you got your answer. Thanks! 2) Rating. Relative speed of flow 10W. Half as fast as 5W 15W. Half as fast as 10W 20W. Half as fast as 15W 2) ...

**Math**

Savings-5% Others-25% Food- 10% Housing- 25% All taxes- 35% The pie chart above shows the Carson family's expenses for 1994. The Carsons had an income of $40,000 in 1994. In 1995 the Carsons income was $10,000 greater than in 1994. The family spent the same dollar amounts in ...

**Math**

Hi! You need 2 cups of water, but you only have a liquid measuring cup that measures up to 3 pints. what can you do to get the 2 cups of water that you need? explain and show your work.

**5th grade Math**

Can you check this? 7. Will brought in candy for his friends that weighed 7/8 lbs. If he split it up equally among himself and 4 other friends, how much candy did they each get? (7/8)/5 = 7/40 lbs??

**cooking or math**

if jill has 1 gallon of milk, but the recipe calls for 3 1/4 quarts, how much more milk will jill have? i really need help

**Math**

The ratio of girls to boys is 2:1 and that there are 3 boys, what is the number of girls?

**Math**

Susan's mother filled her car's gas tank at the gas station. She bought 48.3 L, and her bill was $37.43. What was the price of the gas in cents for each litre? Explain your answer.

**Math**

In triangle MNP the interior angle at N is 24 degrees and the exterior angle at P is 55 degrees. Which is the measure of the interior angle at M

**Math**

The exterior angle at the vertex formed by the equal sides of an isoceles triangle is 140 degrees. Which are the measures of the exterior angles at the other verticies A ) 140 degrees and 80 degrees B ) 110 degrees and 110 degrees C ) 40 degrees and 40 degrees D ) 40 Degrees ...

**Math**

What is the unit rate for $2.88 for 32 oz?

**Math**

In a cupboard there are pencils, rulers and books. The number of pencils is 15 more than that of rulers. The number of books is three time that of rulers. If the number of pencils is p, which one the total number of items in the cupboard?

**Math**

At the market,Susan bought 5 peaches for $1.45.At that rate,what would 1 peach cost

**math**

when adding square root of 9 and -7 which type of number is the sum? irrational whole number radical integer

**Math**

Part A A right rectangular prism has sides lengths of 4 inches, 3 1/2 inches, and 6 1/2 inches. How many 1/2 inch cubes would be needed to fill the prism? Part B What is the volume of the prism in Part A? Explain your answer.

**Need Help Math**

5. Based on this pattern, h human years, how old is your dog in dog years? In other words, if given any number to figure out the age in dog years. Hint: (h-2) should be somewhere in your expression. I choose a large dog.

**math**

Find the width of a rectangle which is 7.5m long and has an area of 60m2 2= squared thank you.

**math**

A class of 33 33 students elected a class treasurer. There were 11 11 votes for Candidate A and 15 15 votes for Candidate B. The remaining students did not vote. Which expression gives the percent of voters who voted for Candidate A?

**Math**

. Which is a solution of 2 8 x 1 5 $ 11?

**math**

Consider the expansion of (x + 2)11. (a) Write down the number of terms in this expansion. (b) Find the term containing x2.

**Consumer Math**

Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent of the vegetable boxes he has grouped for sale will have a ...

**math**

In a shop, There are 25 bicycles and tricycles. There are 63 wheels in all. Find the number of bicycles in the shop.

**Math**

Suppose $p(x)$ is a monic cubic polynomial with real coefficients such that $p(3-2i)=0$ and $p(0)=-52$. Determine $p(x)$ (in expanded form).

**Math/Physics**

• Exercise 1 Trajectory is given parametrically: ri = [ cos(t), sin (t),t] F= m*(d power 2 r/ dtpower 2) Calculate Force Fi • Exercise 2 Energy of a covalent bond is approximated as: Vb (rij) =1/2 k [( rij-bij)]power2 Calculate the force acting on atoms as a function of ...

**MATH**

WHICH OF THE FOLLOWING IS THE BIGGEST:2/5, 6/21, 4/18, 2/11?

**math**

I need an answer to this question.Express the product of 0•006 and 0•0009 in the standard form.

**math**

How does 1-cos^2(x)=tan^2(x)

**Math**

A rectangular field measuring 560 m by 800 m is to be represented on a scale drawing using the scale 1:20000. What is the area of the scale drawing in square centimeters?

**Math**

Mary spent 3/7 of her time playing, 2/3 reading. What fraction of her time is left?

**Math**

The area of a triangle is 4 times the area of the smaller triangle formed by joining the nidpoints of two sides True or false

**math**

Determine whether ΔGHI is a right triangle. G(-2, 1), H(3, -1), I(-4, -4). Can you please show the steps too? Thank you!

**Math**

62 is the sum of 16 and hectors score

**Math**

the 8th terms of a geometry progression is 640. if the first term is 5, find the common ratio and the 10th terms?

**Math**

5!4!_7!2!=

**Math**

Three neighbors measure the snow in their yards over an entire winter. Manny has 30 inches of snow, Mo has 3.5 feet of snow, and Jack has 1.5 yards of snow. The neighbors want to pile all of the snow into one giant snow pile so they can have the most epic sledding hill ever. ...

**Math-Please Help!**

Hi, I am having trouble understanding the concept of delta and epsilon. Please explain the following problem. Thank you!! Given the function f(x)=2-(1/x), find delta such that if 0< Ix-2I < delta, then the absolute value of f(x)-1 is < 0.1

**Math**

Dog Debate UNIT NAME: EQUATIONS AND INEQUALITIES Directions: The traditional method for calculating a dog's age in dog years is to multiply its age in human years by 7. The chart below describes a different method some veterinarians use to estimate a dog's age based on its ...

**math, I need help please answer quickly!**

A) Estimate 49% of 162 B) Use mental math to calculate 49% of 62

**math please answer quick!!!**

Maya is driving 120 miles to her grandmother's house. She drives 35% of the distance before stopping for lunch. How far does she drive before lunch?

**math please answer quick!!!**

1.Find 30% of 70

**Math**

The ratio of cherry tomatoes to people in a toasted salad is 7:15 if Waldo wants to serve 105 people how many cherry tomatoes will Waldo use? The ratio of pineapples to people for a chocolate fondue dessert is 1 to 5 if deb wants to serve 80 people how many pineapples will deb...

**Math**

an airplane travels 500 km with the wind in the same time that it takes the airplane to travel 400 km against the wind. the average speed of the plane in still air is 180 km/h. what is the average speed of the wind? Airplane with wind: Distance: 500km Speed: 180+x Time: ...

**Math**

The ratio of oranges to people in the fruit salad is 9/40 if Lisa wants to serve 800 people how many oranges will Lisa use

**Math**

Ed invests $68,000 in certificates of deposit (i.e., CDs) paying 1.75%. How much additional money does he need to invest in stocks that are expected to generate a return of 11.8% so that the average return on all of Ed’s investments is 7.5%?

**math help asap**

is 6m^2n^5 a monomial? What degree is -x^4y^3 is? The ^ is use to show the exponets

**Math**

Don't understand how to solve this problem: 12. A, B, C, and D are points on a line, and the lengths of the line segments are: AB = 12, BC = 4, CD = 7, and DA = 15. Which of the following is a possible order for the points? A.A,B,C,D B. A,C,D,B C. A,D,C,B D. A,C,B,D

**math**

A woman is 5 times and 3 yrs older than her daughter , if the daughter is 5 yrs old, how old is the woman.

**Math**

Estimate a 15% tip for a meal that cost $26.80. a)$1.35 b)$2.70 c)$4.05 d)$31.05

**Math**

Constuct a triangle ABC such that BC 5.6

**Math**

A house was valued at $364,000. Over several years, the value decreased by 7%, giving the house a new value.

**Math**

I swear, last question! Calculate S(31) for the arithmetic sequence in which a(9) = 17 and the common difference is d = -2.1 -46 -29.2 32.7 71.3 Usually, I can figure these out but I'm stuck:(

**Math**

Write the first five terms of the sequence defined by the recursive formula a(n) = 2*(a(n - 1)) + 5 with a(1) = -3 -3, -10, -24, -43, -81 -3, -1, 3, 11, 27 -3, 2, 7, 12, 17 -3, 4, 18, 46, 102 I'm trying to do this the way I've always done them (and gotten them right in the ...

**Math**

Calculate S(68) for the arithmetic sequence a(n) = (2/3)n + 1/6 87/2 273/6 139/3 4,726/3

**Math**

Calculate the missing terms of the geometric sequence ..., 2048, ?, ?, ?, 8, ... Select all that apply. 1,538, 1,028, 518 ***** 1,534, 1,020, 514 512, 128, 32 -512, 128, -32 -1,534, 1,020, -514 -1,538, 1,028, -518 I have to pick 2 options. I know the first one is correct, but ...

**Math**

Calculate the sum of the infinite series 72 + 60 + 50 + 125/3 + ... 489 432 360 307 Can someone please help me with this one? I can never solve these on my own:(

**math - bearings**

Starting from their base in the national park, a group of bushwalkers travel 1.5 km at a true bearing of 030°, then 3.5 km at a true bearing of 160°, and then 6.25 km at a true bearing of 300°. How far, and at what true bearing, should the group walk to return to its base? ...

**math**

mikes truck engine holds 1 1/4 gallons of oil if there are 3 quarts of oil in the engine now how many more quarts of oil does mike need to add to fill the engine capacity? -(hint i gallon is 4 quarts)

**Math**

A large pizza has a total diameter of 14 inches and a cross that is 1 inch wide. What is the area of the crust? Round to the nearest tenth.

**math**

it took 12 gallons of gas to fill the family car this is 5/6 the amount that the tank can hold how much gas can the tank hold? A.10 Gallons B.14 2/5 Gallons C.12 5/6 Gallons D.13 5/6 Gallons-My Answer Please check thanks:)

**math**

13. solve the equation 4 2/5x = 12 1/10 A.7 7/10 B.2 3/4-My Answer C.2 1/2 D.4/11 Please help!!!

**math - bearings**

If the bearing of A from O is θ°T, then what is the bearing of O from A: a. if 0° < θ° < 180° b. if 180° < θ° < 360°? I don't quite understand what the question is trying to ask, need some insight, thanks.

**Math**

solve the equation for c c/3 =4 A. 1 1/3 B. 1/12 C. 12 D. 3/4

**Math**

can someone please give me a chart of triangles and what there called like scalene right or equilateral obtuse

**math**

4 2/3 * 3 3/4 A.8 5/12 B.15 C.12 1/2 D.17 1/2

**math**

Andy has 5 pots each pot can hold 3/8 pound of soil how much soil does he need to fill all the pots? a. 13 1/3 b 4 5/8 c 2 5/8 d 1 7/8

**math - bearings**

Been working on this question for a while. Have drawn a diagram (looks like a tilted trapezium, correct me if i'm wrong), but I still can't find any right angles to calculate the distance. Help would be appreciated, thanks. Question: A plane flies on a true bearing of 320° ...

**Math**

Solve for the unknown quantity in each proportion

**math**

A boy is cycling such that the wheels of the cycle are revoloving 140 times per minute.if the diameter of the wheel is 60 cm,calculate the speed per hour with which the boy is cycling. Find answer in km per hour