Thursday

July 30, 2015

July 30, 2015

**Math**

A plane has a height of 1000 m. You see the plane at an angle of 40 degrees with the ground . How far away is the plane from where you are standing.
*Sunday, April 12, 2015 by Michelle*

**Math**

A wall has dimensions 25 m by 10 m represent the wall with a drawing if the scale is 1 cm represents 5 m
*Sunday, April 12, 2015 by Michelle*

**math**

five hundred raffle tickets are sold for $2 each. one prize of $400 is to be awarded. raul purchases one ticket. what is his expected value and fair price of the ticket.
*Sunday, April 12, 2015 by brittany*

**business math**

Jen purchased a condo in Naples Florida for $699,000. She put 20% down and financed the rest at 5% for 35years. What are Jens total finance charge?
*Sunday, April 12, 2015 by sara*

**math**

For a experiment, Jenna needs to make a dilute solution that is 10 ounces of 40% acid. But Jenna only has solutions that are 30% acid and 70% acid. How many ounces of 70% acid solutions should she use? A. 2.5 ounces B. 5 ounces C. 7.5 ounces D. 8 ounces Not sure if I would ...
*Sunday, April 12, 2015 by vincent*

**math**

Erin is making a pitcher of lemonade. Her pitcher is a cylinder with a diameter of 8.6x10^-2 meters and a height of 0.44 meters. What is the approximate total amount of lemonade that will fit in her pitcher? A.2.6 x10^-3 cubic meters B.1.0x10^-3 cubic meters C.2.6x10^-2 cubic ...
*Sunday, April 12, 2015 by vincent*

**math**

29.Paige and Brooke make iced tea. Paige makes 18 ounces of iced tea that is 7% sugar. Brooke makes 10 ounces of iced tea that is 1% sugar. They wanted to combine their tea to have 12 ounces of iced tea that is 3% sugar. How many sugar. How many ounces will Brooke have to ...
*Sunday, April 12, 2015 by Rabie*

**Math Please Help Me**

1. At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random? You survey customers at the local shopping mall. You survey people ...
*Sunday, April 12, 2015 by YOLO*

**math**

A gardener rested his hose against a shed. The hose made a 50° angle with the ground
*Sunday, April 12, 2015 by Briana*

**math**

25. The Great Pyramids weigh 6x10^9 kilograms. The Space Shuttle weighs 2x10^6 kilograms. How many times heavier are the Pyramids than the Space Shuttle? A.The Pyramids are 3 times heavier than the space shuttle. B.The pyramids are 30 times heavier than the Space shuttle. C....
*Sunday, April 12, 2015 by Rabie*

**math**

The height (in feet) of a rocket from ground level is given by the function f(t) = -16t^2 + 160t. What is the instantaneous velocity of the rocket 3 seconds after it is launched?
*Sunday, April 12, 2015 by azizah*

**math**

3feet+10inches=
*Sunday, April 12, 2015 by shafic*

**Math help!**

solve for x (x^2 - x) + (x^2 - x)^1/2 -6 = 0
*Sunday, April 12, 2015 by Yin*

**Math help!**

solve for x (x/1-x)^2 - (x/1-x) -6 = 0
*Sunday, April 12, 2015 by Yin*

**Math Help**

I already know the answer I just need to know how they got it. Fraction Whole Number 1/5 x 13,500 = 2,700(how did they come up with this answer)
*Sunday, April 12, 2015 by YOLO*

**Math**

Write down two unitary fractions whose difference is 1/40
*Sunday, April 12, 2015 by Theo*

**math**

the probability sue purchases a dress is 3/5. if she does buy a dress, the probability she buys shoes is 5/8. If she does not buy a dress, the probability she buys shoes is 1/4. If you learn Sue bought shoes, what is the probability she bought a dress?
*Sunday, April 12, 2015 by J.Math*

**Math Word Problem**

Andre drew four congruent triangles, with legs a and b units long and hypotenuse c units long. Then, Andre arranged the triangles to form a large square. He then wrote two different expressions for the are of the large square. Since each side measures c, he represented the ...
*Sunday, April 12, 2015 by Kimbo*

**math**

Dylan uses the expressions (x2 – 2x + 8) and (2x2 + 5x – 7) to represent the length and width of his bedroom. Which expression represents the area (lw) of Dylan’s room?
*Sunday, April 12, 2015 by carlos*

**Math plz help **

Which rational number is equivalent to 3.90 with the .90 repeating? A. 3/90 B. 39/10 C. 35/9 D. 43/11 EXPLAIN PLZ
*Sunday, April 12, 2015 by Kimbo*

**math**

what is the linear velocity of a point in Sydney, Australia which is at latitude 33deg 55'S. Radius of earth is 6370km.
*Sunday, April 12, 2015 by Alice*

**Math, Circuits**

A DC circuit to a specialized of 3000 ohms, a 500 ohms, and 10 000 ohms resistor in series. The series current is 15 mA. Find the Voltage drop across R1.
*Sunday, April 12, 2015 by Camille*

**Math**

f(x)= ¡Ìx+4, g(x)= 2/¡Ì7-2x 1. The domain of f is_______(in interval notation) 2. The domain of g is ______(in interval notation) 3. (f+g)(0)= 4. (f+g)(-5)=
*Sunday, April 12, 2015 by Yin*

**Math**

(a) Straight line passes through the point (-2,8) and is parallel to the line x+2y=4 Slope Intercept Equation is: (b) Straight line passes through the point (-1,9) and is perpendicular to the line 5x+y=4 Slope Intercept Equation is: (c) Determine the center and the radius of ...
*Sunday, April 12, 2015 by Yin*

**Math**

For the function g(x) = 2x^2-3x determine the following expression/quantity. a. g(x+h) -g(x-h) / 2h = Using the results of Part A b. g(3.1)-g(2.9) / 0.1 =
*Sunday, April 12, 2015 by Yin*

**Math**

To support a damaged tree, a guy wire is attached to it and secured to a peg in the ground some distance away ( see the diagram below). 2 ft is by the guy wire 8 ft and 50 degrees
*Sunday, April 12, 2015 by Krista*

**Math**

A room measures 15 ft by 12 ft . Sketch and label a diagram and then calculate its area and perimeter
*Sunday, April 12, 2015 by Krista*

**Math**

Andre drew four congruent triangles, with legs a and b units long and hypotenuse c units long. Then, Andre arranged the triangles to form a large square. He then wrote two different expressions for the are of the large square. Since each side measures c, he represented the ...
*Saturday, April 11, 2015 by Kimbo*

**Math**

Charlie says that y=2x^2 is not a function because the same y value sometimes corresponds to more than one x-value. x -2 -1 0 1 2 y 8 2 0 2 8 Is Charlie correct? EXPLAIN PLZ BC I'M LOST
*Saturday, April 11, 2015 by Kimbo*

**Math**

A wheelchair ramp to a public building forms a 15 degree angle with ground and reaches a height of 2.3 metres above the ground. A) fill in these values on the diagram to the right. B) Label the length of the ramp, X . Then find its length ( to one decimal place)
*Saturday, April 11, 2015 by Lori*

**Math**

A room measures 3 m by 5 m. A scale drawing is to be made, using a scale of 1 cm=0.5. Find the dimensions of the scale drawing and provide sketch of this room drawn to scale.
*Saturday, April 11, 2015 by Lori*

**Math**

A rectangle has dimensions 4 ft by 6 ft. Show that if the length and width are doubled, the area is 4 times as large.
*Saturday, April 11, 2015 by Lori*

**Math**

Draw and label a diagram of each figure described below and calculate its volume. A) a sphere with a radius of 2 m. B) a cone with a diameter of 8 ft and height of 10 feet.
*Saturday, April 11, 2015 by Lori*

**Math**

As of the 2012 Summer Olympics, the world record for women's long jump is 24 feet, 8 inches. How much longer is the world record than Sheila's first jump? Express your answer in yards. Sheila first jump measured 3 yards, 2 feet, 8 inches. Do I convert to inches or ...
*Saturday, April 11, 2015 by AC*

**Math**

Which of the following are equivalent to 8/27? A. 3^-3 * 2^3 B. (3/2) ^-3 C. 2^3/3^-3 D. (2^-3 * 3^3) ^-1
*Saturday, April 11, 2015 by Kimbo*

**Math**

A probe launched from Earth to Mars is traveling at an average speed of 1.8 * 10^4 kilometers per hour. If the distance between Earth and Mars is approximately 2.25 * 10^6 kilometers, about how many hours will it take the probe to reach Mars? PLEASE EXPLAIN YOUR REASONING
*Saturday, April 11, 2015 by Kimbo*

**Math**

What is the equation of the line that passes through all the points in the table? x -4 -2 0 2 y 0 -4 -8 -12 A. y= -2x-8 B. y= -2x-4 C. y= -4x-8 D. y= -4x-4 PLEASE EXPLAIN PLZZ
*Saturday, April 11, 2015 by Kimbo*

**Math**

What is the approximate volume of this sphere, which has a diameter of 12 meters?
*Saturday, April 11, 2015 by Kimbo*

**math**

howmanypintsareequivalentto3gallons
*Saturday, April 11, 2015 by shafic*

**math**

whatis3feet+7inches=
*Saturday, April 11, 2015 by shafic*

**Math**

Eli sculpted this square pyramid out of clay. Its base is 12 inches long on each side and its slant height is 9 inches. What is the approximate height, h, of Eli's pyramid? (the answer includes square root)
*Saturday, April 11, 2015 by Kimbo*

**Math**

Which rational number is equivalent to 3.90 with the .90 repeating? A. 3/90 B. 39/10 C. 35/9 D. 43/11 EXPLAIN PLZ
*Saturday, April 11, 2015 by Kimbo*

**Math**

The planet Neptune is approximately 4.5 * 10^9 kilometers from the sun. The planet Venus is approximately 1.1 * 10^8 kilometers from the sun. Which is the best estimate of how many times as far from the sun Neptune is as Venus? A. about 4 times as far B. about 40 times as far ...
*Saturday, April 11, 2015 by Kimbo*

**Math**

An ice cream store sells 30 different flavours of ice cream and it offers a choice of 3 different kinds of cones. In how many ways can we order a dozen two-scoop ice cream cones if any two of them in one order must differ at least by a flavor or by the kinds of cones? Thanks ...
*Saturday, April 11, 2015 by Excel*

**Math **

An airplane is at an altitude of 10 km. You spot the airplane at an angle of 55 degrees . How far away Is the airplane directly from you? Give your answer to the nearest kilometre.
*Saturday, April 11, 2015 by Susan*

**Math**

If a grasshopper jumped a vertical distance of 1.5 cm and horizontal distance of 8.0 cm,at what angle did it rise from the ground?
*Saturday, April 11, 2015 by Susan*

**Math **

A 6 m ladder is leaning against the wall of a house. The angle between the ladder and the ground is 68 degrees. How far away is the ladder from the wall.? How high up the house does the ladder reach ? Give your answers accurate to two decimal places.
*Saturday, April 11, 2015 by Susan*

**math**

In constructing a graph that compares average water usage per household in different communities, you choose to use cubes of different sizes. If the cubes are drawn so that their volumes are proportional to the volumes of water usage in different comunities, is the resulting ...
*Saturday, April 11, 2015 by heem*

**math**

Determine whether the following data should be represented on a graph as one-dimensional, two-dimensional, or three-dimensional. the average rainfall during different months of the year
*Saturday, April 11, 2015 by heem*

**math**

A study is conducted to compare the average square footage of homes in different communities. If squares are drawn so that their areas are in proportion to the average square footage, is the resulting graph misleading? Why or why not?
*Saturday, April 11, 2015 by heem*

**math**

F ind the product of two odd integers.
*Saturday, April 11, 2015 by Riya*

**Math**

Write the quadratic equation in standard form that has the given solutions. x:{5, -3}
*Saturday, April 11, 2015 by M*

**math**

The measures of the angles of the quadrilateral are in the ratio 2:4:6:8. Find the measure of each angle.
*Saturday, April 11, 2015 by Riya*

**math**

There are 10 batmans. the runs scored by the batmans are 1,2,3,4,5,6,7,8,9 and 10. Find the average scored bt them.
*Saturday, April 11, 2015 by Riya*

**math**

The measures of the angles of the quadrilateral are in the ratio of 2:4:6:8, Find the measure of each angle.
*Saturday, April 11, 2015 by princy*

**math**

One angle is 10 degrees more than 4 times the other. Find the measure of each angle if a) they are complimentary, and b) they are supplementary
*Saturday, April 11, 2015 by Alice*

**math**

a swimming pool has an area of 40 square metres and a perimeter of 26 metres what is the length and width of the swimming pool and is it possible for a pool to have the same area but a larger perimeter?
*Saturday, April 11, 2015 by eric*

**math**

the width of a math textbook is 0.75 inches. how many math textbooks can be placed standing up on a shelf that is 18 inches wide
*Saturday, April 11, 2015 by cat*

**math**

By mass a certain material is 75% sand and another is 30% sand. How many tonnes of each must be mixed in order to have 250 tonnes of material that is 50% sand?
*Saturday, April 11, 2015 by Mat*

**math**

which ordered pair is a solution to the equation y = 3x + 4. I just can't figure it out. I have been working on this problem for over an hour. Please help me with the steps
*Saturday, April 11, 2015 by Jay*

**math**

Water is falling on a surface, wetting a circular area that is expanding at a rate of 9 mm2 /s. How fast is the radius of the wetted area expanding when the radius is 120 mm? (Round your answer to two decimal places.)
*Friday, April 10, 2015 by jennifer*

**math**

A rectangular field is to be enclosed on four sides with a fence. Fencing costs $8 per foot for two opposite sides, and $2 per foot for the other sides. Find the dimensions of the field of area 900 ft2 that would be the cheapest to enclose.
*Friday, April 10, 2015 by jennifer*

**math**

How to use an elimination strategy to solve the linear system: 5/3x +1/4y = 10 1/3x + 1/2y = 5
*Friday, April 10, 2015 by lyn*

**math**

an airplane is flying 120 km south and 130km west of an airport. It is flying at a height of 10 km . what is the straight line distance to the airport?
*Friday, April 10, 2015 by sara *

**Math**

Gloria is an artist. She sets a goal to paint 2 pieces every month. she has already painted 5 pieces. The number of pieces Gloria paints depends on the number of months she spends painting. Which statements describe the number of pieces p Gloria paints over t months if she ...
*Friday, April 10, 2015 by Jay*

**Math**

As of the 2012 Summer Olympics, the world record for women's long jump is 24 feet, 8 inches. How much longer is the world record than Sheila's first jump? Express your answer in yards. Sheila first jump measured 3 yards, 2 feet, 8 inches. Do I convert to inches or yards
*Friday, April 10, 2015 by AC*

**math**

A savings account starts with $560.00. If the simple interest rate is 3%, find the total amont after 18 months
*Friday, April 10, 2015 by Skylar*

**Math**

A manufacturer has determined that the weekly profit from the sale of x items is given by the function below. It is estimated that after t days in an week, x items will have been produced. Find the rate of change of profit with respect to time at the end of 7 days. P9x) = -x^2...
*Friday, April 10, 2015 by Stacey *

**Math 222**

I am starting to wonder why when I ask for help with my math problems, I get skipped over? This has happened to me a few times. I thought this site was to help those, but apparently not. I just need to know where to start, not the answers.
*Friday, April 10, 2015 by Raven*

**Math**

Jack needs a piece of wood at least 13/16 inch long for some detail work on a project he is working on. Which of the following lengths of wood would meet his requirements? a 1/2 inch b 7/8 inch c 3/4 inch d 27/32 inch e 5/8 inch f 1/4 inch How do I solve this problem?
*Friday, April 10, 2015 by Jay*

**Math 222**

Can someone please help me with these two problems? 1).12 < 12 + 4x < 0 2). 12 – x > 15 or 7x – 13 > 1
*Friday, April 10, 2015 by Raven*

**Math **

What ordered pair is a solution to the equation y = 3x + 4? a. (0,0) b. (-5, -3) c. (2, 10) d. (15, 39) I pick C is this correct?
*Friday, April 10, 2015 by Jay*

**Math**

What is the least common multiple of 8 and 12? PLEASE SHOW YOUR WORK IF POSSIBLE!
*Friday, April 10, 2015 by Amber*

**Math**

A flowerbed is 3 3/4 meters long and 2 meters wide. Uncle James wants to build a border around the flowerbed. The width of the border is 1/2 meter. The cost of building the border is $20 per square meter. How much does Uncle James have to pay to have the border built.
*Friday, April 10, 2015 by Sophie*

**Math Homework**

Sheila's first jump was 3 yards 2 feet 8 inches her second was 2 yards 1 foot 10 inches how much longer was her first jump? express your answer in inches I'm having a hard time setting this up
*Friday, April 10, 2015 by AC*

**Math**

Puppy A is 3/4 as heavy as puppy B. Puppy C is twice as heavy as puppy A. If the weight of puppy B is 8 pounds, find the weight of puppy C.
*Friday, April 10, 2015 by Sophie*

**Math**

Lily uses 1 3/4 of ribbon to make a knot. She wants to make 9 similar knots for her cousins. How many meters of ribbon does Lily need? Round your answer to the nearest meter.
*Friday, April 10, 2015 by Sophie*

**Math**

The Smith family drinks 1 4/5 liters of apple juice each day. The apple juice is packed in 2-liter bottles. How many bottles does Mrs. Smith need to buy every week?
*Friday, April 10, 2015 by Sophie*

**Math - Ms. Sue**

1) Which is M = 9pn solved for p? a. p = M/n b. p = M - 9n c. p = 9n/M d. p = M/9n 2) Which is M = 300J/P solved for J? a. J = 300PM b. J = 300M/P c. J = 3OO/PM d. J = PM/300 I don't really understand this but my answer are 1. d 2. b
*Friday, April 10, 2015 by Nalea*

**Math**

You borrow $2,000 for a period of 4 years. You are charged simple interest at a rate of 3%. How much will you repay at the end of 4 years? Explain
*Friday, April 10, 2015 by Bridget. One question*

**math - plz help!!**

How to write three linear system that are equivalent to the linear system shown? 5x-4y= -3 2x + 7y= 5
*Friday, April 10, 2015 by lyn*

**Math**

Simplify the expression 6P3. A. 30 B. 120 C. 360 D. 720 Is the answer B? Thank you
*Friday, April 10, 2015 by Anonymous*

**Math**

austin collected 30 9/10 kilograms of glass for recycling. exactly 2/3 of glass he collected was blue. what was the total amount in kilograms of blue glass austin collected?
*Friday, April 10, 2015 by Anonymous*

**Math(PLEASE HELP IMPORTANT CASE STUDY) **

Express the weekly profit earned using the variable cost per unit and the fixed cost. TP=TR-TC TP= P(9+33p-p^2)-10(9+33p-p^2)+100 Please help me solve this! I am BEGGING. THANK YOU SO MUCH
*Friday, April 10, 2015 by Cindy*

**Math**

Find the value of each factorial expression. 4! A. 3 B. 6 C. 12 D. 24 Is the answer B? Thank you
*Friday, April 10, 2015 by Sonali*

**math/physics**

A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine amp, frequency and steady ...
*Friday, April 10, 2015 by Frank*

**Math**

Find the surface area of the right prism with the given features. The bases are right trapezoids with bases of lengths 8 and 14 perpendicular to one side of length 18; height = 11.
*Friday, April 10, 2015 by Suzy*

**Math**

A 6 m ladder is leaning against the wall of a house The angle between the ladder and the ground Is 60 degrees . How far away is the ladder from the wall? How high up the house does the ladder reach? Give your answers accurate to two decimal places
*Friday, April 10, 2015 by Susan*

**Math**

three whole numbers have their LCM as 180 and their HCF equal to 3. two of the numbers are 45 and 60. Find the third number.
*Friday, April 10, 2015 by Bright*

**math**

c = g + 94 The variable g represents the number of guests, and the variable c represents the cost in dollars. If there are 3 guests, how much will Jenna's retirement party cost?
*Friday, April 10, 2015 by Sarah*

**Combinations-Math**

A group of 9 workers decides to send a delegation of 3 to their supervisor to dicusss their grievences. c.) If there are 4 women and 5 men in the group, how many delegations would include at least 1 women? iS THIS CORRECT: C(4,1)xC(5,1)+C(4,3)XC(5,0)=24
*Friday, April 10, 2015 by Emily*

**solve math problem**

A group of 9 workers decides to send a delegation of 3 to their supervisor to dicusss their grievences. c.) If there are 4 women and 5 men in the group, how many delegations would include at least 1 women? I know I have to use combination C(9,1)x C(9,4) but I'm lost after ...
*Friday, April 10, 2015 by Tracy*

**business math**

a fair dice is tossed twice 1 at most 6 at least 9
*Friday, April 10, 2015 by talha*

**math - hw help. plz**

How to I solve this linear system using method of substitution? 1/4x + 1/2y = -5/12 2x - y = -4/3
*Friday, April 10, 2015 by TD*

**Math**

35=18
*Friday, April 10, 2015 by Anonymous*

**Math**

Does the inequality x > 5 have an infinite number of solutions? How do you know?
*Friday, April 10, 2015 by Jay*

**Math**

Which inequalities share some solutions with x > 3? - a x > 3 b x < 0 c x < 3 _ d x > 5 _ e x < 3 How do I solve this problem?
*Friday, April 10, 2015 by Jay*

**Math**

You roll a pair of number cubes and then flip a coin. Is this an example of independent or dependent events? A. Independent B. Dependent Is the answer A? Thank you
*Thursday, April 9, 2015 by Grace*

**8th grade math**

Company A charges $25.00 for up to 100 minutes, plus $0.50 for each extra minute. Company B charges $50.00 for an unlimited number for minutes. What are the equations for each company?
*Thursday, April 9, 2015 by Chris*

**Math**

Suppose you write the letters M-I-S-S-I-S-S-I-P-P-I on cards and mix them in a hat. You choose one card from the hat without looking. What is the probability of picking an S? A.4\11 B.2\11 C.4\7 D.7\4 Is the answer A? Thank you
*Thursday, April 9, 2015 by Grace*