# Posts by ANONYMOUS

Total # Posts: 109,246

**math**

n = 1 2 3 4 x = 5 10 15 20 y = 1 3 5 7 according to the pattern above, write the rule between x and y?

**math**

shinta notice that in her piggy bank she has 60 coins all of which are $1 or $2 pieces. She finds that the value of the coins is $92. Let x be the number of $1 coins she has, make an equation on find x.

**Math**

The base of the right prism is a rhombus with the side 7 cm. The altitude of the prism is h=13 cm. Find the lateral area of the prism.

**Science**

I was wrong putting salt in makes hotter water it's #5

**government**

When the television networks stress the issue of environmental pollution rather than universal health care, they are performing the media function of

**Algebra II Help**

4) The function f(x)=2(3)^x represents the growth of a dragonfly population every year in a remote swamp. Rose wants to manipulate the formula to an equivalent form that calculates seven times a year, not just once a year. Which function is correct for Rose’s purpose and ...

**Maths**

How many no. S are there im between 200 and 500 leaving remainder when divided by 3

**Physic**

Find the resultant of the following two displacements; 2.0 m 40 degrees 4.0 meters at 127 degrees. the angles are taken relative to the x-axis

**Algebra**

The formula relating the speed of a vehicle (S, in miles per hour) that a car was traveling at the moment the brakes were applied causing the vehicle to skid to a stop, traffic investigators use the formula S = square root of 30fL, where L is the length(in feet) of the skid ...

**Algebra**

A rectangular museum painting has a uniform width frame around it. The frame is 8 feet high by 10 feet long. If the diagonal of the painting is 10 feet, determine the width of the frame.

**Math.... I need help, 3 questions for homework I j**

destiny is right guys, thxs destiny

**Science**

Water condenses on the grass in the early morning help

**LA**

What does this passage most likely show about Mrs. Winterbottom? Please help me with the answers to this assessment!

**nutrition health**

Which of the following should be avoided when treating chicken pox in infants and children

**Social studies**

A??

**chemistry**

the half life radium-222 is 4 days. if a sample of radon-222 undergoes decay for 12 days, how much of the original parent isotope will be left?

**statistic**

thank u

**statistic**

Im confusing the questions with and / or. table: Grade level | Bird | Cat | Dog | Fish 6th graders | 9 | 27 | 42 | 3 7th graders | 12 | 36 | 56 | 4 1. what is the probability randomly selected student is an 7th grader and prefers a bird as a pet? a. 33% b. 6% c. 75% d. 28% my ...

**ELA**

what's a character train for moon shadow in chapter 5

**Physics-Answer Check**

You have an LED bulb that uses 4 watts of power and gives an output of 170 lumens. The operating voltage is 120 volts. Using this data, find the following. 1. What is the current that the LED bulb uses? Ans. 0.03 ampere 2. What is the effective resistance of this bulb? I'm...

**Physics-Circuits**

How does a circuit breaker work to protect against an overloaded circuit?

**Writing **

More recently,however,doctors have taken a greater interest in the field. Along with the general public,too.

**Writing**

They emphasized the importance of good maternal and child health care, including the administering of vaccines.

**math**

multiply. give your answer in standard form. (2n^2-7n+2)*(3n+1)

**Social studies**

It's Kayla sorry I don't know why but my name changed to " Anonymous"

**Social studies**

Umm are you sure I'm correct I was licking at a related question and you it said A is the correct answer for the fist question is it's A or B

**math**

length = 12 ft. width = 8 ft. Area = sq ft.

**Math**

If an inch equals 25 ft. What does 20 equal

**Math**

A grandfather is ten times older than his granddaughter.he is also 54 years older than her. Find their present ages.

**Math**

A rectangular swimming pool is 6 meters longer than the width of the pool. A pool deck (sidewalk) that surrounds the pool is 4 meters wide (all the way around the pool). The combined area of the pool deck and pool together (outer rectangle) has an area of 576 square meters ...

**Math**

A ladder is needed to reach the top of a second floor window, A distance of 20 feet above the (level) ground. According to the directions on the ladder, the distance between the bottom of a leaning ladder and the base of the (vertical) wall it is leaning up against should be ...

**Math **

The distance, "d", to the horizon (= farthest point on the earth still visible) for an object that is "h" miles above the surface of the earth is given the formula d = the square root of 8000h +h^2. Determine how many miles above the surface of the earth is...

**Math**

The area of a triangular sail (for a sailboat) is 30 meters squared. If the height of this triangular sail is two less than twice the length of the base, find the dimensions ( height and base ) of the triangular sail.

**math**

For a Saturday matinee, adult tickets cost $6.50 and kids under 12 pay only $4.00. If 90 tickets are sold for a total of $460, how many of the tickets were adult tickets and how many were sold to kids under 12?

**pls help physics problem **

A 0.230-kg wooden rod is 1.55 m long and pivots at one end. It is held horizontally and then released. 1) What is the angular acceleration of the rod after it is released? three sf with units 2) What is the linear acceleration of a spot on the rod that is 1.02 m from the axis ...

**physical science**

it takes 100n to pull an object up an inclined plane. the gravitational force on object is 600n whats load force whats effort force

**Geometry**

To boost sales, the president of Slirpy Soups decided to change the size of its cylindrical soup can by doubling one dimension and halving the other. Not knowing wich dimension to double and which to halve, the production people created cans of both types; they made cans with ...

**Science**

What occurs when atoms link together in a new ways to create a substance different from original substances

**Social Studies Help PLEASE CHECK!!**

The citizens of a small city have been eager to see more green space in their environment. There are several abandoned lots that activists think could be turned into community gardens or parks for people to freely enjoy. Use the passage to answer the question. 1. For the ...

**scienice**

a weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart." what properties of waves is the reporter describing

**Solids math **

A cube has a column of 125 cubic millimeters. What is the length of each edge of the cube

**Pre cal **

If a ball is hit with an initial velocity of 110 feet per second at an angle of 45 degrees from an initial height of 2 feet, how far will the ball travel before it hits the ground?

**Solids test**

Christine used 12 cubes to make this 3-steps staircase. If she uses a total 56 cubes to make A similar staircase how many steps will the staircase have ? Think of using objects to help you solve this problem

**physics**

Someone is blowing over the top of a water bottle creating a noise. If the bottle is 0.3m tall and has 0.1m of water in it, find the following (assume the speed of sound is 340m/s)

**physics**

A tube that is open on both ends is 4 meters long. Assuming that the speed of sound is 340m/s, find the following: a) What is the wavelength of the fundamental standing wave (the first harmonic) b) What is the frequency of the fundamental wave? c) What is the frequency of the ...

**Chemistry**

I am not sure.

**Chemistry**

A container at room temperature is filled with equal moles of O2(g), NO2(g) and He(g). The gases slowly leak through a pinhole in the container. After some gas has effused, which relationship is true about the partial pressures of the gas remaining in the container? a) P He &...

**Chemistry**

So if it is the reverse of equation 2. You would have to take ?H°1 - ?H°2?

**Chemistry**

What is the process to calculate ?H° for the reaction? O2(g) + 2NO(g) --> N2O4(g) O2(g) + 2NO(g) --> 2NO2(g) ?H°1 N2O4(g) --> 2NO2(g) ?H°2 a) ?H°1 + ?H°2 b) ?H°1 - ?H°2 c) ?H°2 - ?H°1 d) ?H°1 - 2?H°2 I know according to Hess...

**PHYSICS **

1.How does a flip work? pretend your on a trampoline and jump vertically. How can you jump up in the air and flip.Where is the force coming from to give you a torque? 2.Do you add up linear momentum and rotational momentum for a net momentum? Like energy?

**Math**

Nine less than the product of 23 and Gail's age

**Chemistry**

According to kinetic-molecular theory, particles of an ideal gas a) are motionless b) have zero masses c) attract each other d) have negligible volumes

**Chemistry **

Determine the starting mass of each reactant if 46.3 of K3PO4 is produced and 92.8 of H3PO4 remains unreacted. 3KOH + H3PO4 ----> K3PO4 + 3H2O

**Chemistry **

Determine the starting mass of each reactant if 46.3 of K3PO4 is produced and 92.8 of H3PO4 remains unreacted. 3KOH + H3PO4 ----> K3PO4 + 3H2O

**trig ratios'**

Consider one guy wire. Let x be the height at which the guy wire is attached to the tree. sin58 = x/10 x = 10sin58 ft Tree height = 10sin58 + 2 = ____ ft

**physics**

A tube that is open on both ends is 4 meters long. Assuming that the speed of sound is 340m/s, find the following: a) What is the wavelength of the fundamental standing wave (the first harmonic) b) What is the frequency of the fundamental wave? c) What is the frequency of the ...

**physics**

A string is vibrated with a wave that has a wavelength of 6 meters. How long is 1 loop of the standing wave?

**physics**

A ship is anchored in a bay. The echo of the ship's foghorn, reflected from an iceberg, is heard 5.0 seconds after the horn is sounded. The temperature of the air is -10.0 degrees Celsius. How many meters away is the iceberg? Show your work.

**physics**

What frequency would a listener hear if a train moves away from the listener at 180 km/hr? The frequency of the horn is 3500 Hz, and the air temperature is 19.0 degrees Celsius. Show work, and include 3 significant figures.

**physics**

You push back and forth on a 5 m high flagpole and make it sway back and forth. When you push it with a frequency of 2 Hz you get it into its fundamental standing wave. a) How fast do the waves travel through the flagpole? b) What frequency would you have to apply to get it ...

**Maths **

Cylinder A is eight time as tall as cylinder B, but the diameter of cylinder B is four times the diameter of the cylinder A. Which cylinder has larger volume? How many times as large ?

**algebra**

Remove the parentheses from the following expression, and combine like terms: 3(ax + b2 â€“ c) + 2

**Biophysics **

Consider the flow of blood through a large horizontal artery with 1.0 mm of diameter. The artery has a smooth reduction to an artery 0.5 mm in diameter. If the pressure of the blood in the larger artery is 8.00 x 104 Pa and the pressure in the smaller artery is 6.00 x104 Pa, ...

**Algebra **

Can you please help me on this question for Algebra: Write the word that the number 32/33 represents. From this word, take out the opposite of the word that means you get three strikes in baseball. Now unscramble the remaining letters to get what 12 is to 108 or 7 is to 49. ...

**Science **

A cyclist speed up at a constant rate from rest to 8m/s to 6s. Find the acceleration of the cyclist

**Maths**

I mean its like a rectangular prism but with squares as the base

**Maths**

There are no typos but a square prism is a rectangular prism

**Physics**

I'm trying to find the relationship between electric field strength and distance from point charge as an equation. I found the equation cd = E/(c*c). c is the factor by which the distance changes and E is the field strength. Is the equation good enough?

**trigonometry **

Rewrite 4sin(x)-5cos(x) as Asin(x+phi)

**Chemistry**

How much heat is absorbed when a 35.0 g aluminum block increases in temperature from 23°C to 33°C? Specific heat of Al: 0.900 J*g-1*°C-1 q=ms?T q=(35.0 g)(.900)(33°C - 23°C) q= 315 J? Just making sure there isn't anything that I am missing.

**Chemistry**

Which response presents ions in order of increasing atomic radius? a) smallest Cl-, K+, Na+ largest b) smallest Cl-, Na+, K+ largest c) smallest K+, Na+, Cl- largest d) smallest Na+, K+, Cl- largest I would assume the answer would be D since the electrons are more tightly ...

**Chemistry**

What volume of 0.200 M K2C2O4 is required to completely react with 30.0 mL of 0.100 M Fe(NO3)3? 2Fe(NO3)3 + 3K2C2O4 --> Fe2(C2O4)3 + 6KNO3

**Chemistry**

Which electron transition in a hydrogen atom will emit a photon with the longest wavelength? n = 2 to n = 1 n = 3 to n = 1 n = 1 to n = 2 n = 1 to n = 3 I would assume it would be a short electron transition since energy and wavelength are inversely related. But I am a little ...

**English**

a sense of fear gushed throughout my body does it make sense?

**math**

well first of all: 1/3 log (ab)^3 = (1/3)(3) log (ab) = log (ab) now log (ab) = log a + log b (that is how your slide rule works) (you do not have a slide rule?) (google slide rule :) so what we have here is x+y

**physics**

Radiant emittance is R=?T? The solar radiation power is N=RS?=?T?4?(r?)², where S? is the Sun surface, and r? is the Sun radius. The power radiated by the Sun falls on the inner surface, which radius is equal to the distance from the Sun to the Earth - r?. This area is ...

**Chemistry**

Which element is oxidized and which element is reduced in this redox reaction? CO2(g) + H2(g) --> 2CO2(g) + H2O(g) Is Oxygen oxidized and hydrogen reduced?

**Chemistry**

What is the net ionic equation form the reaction between Na2S(aq) and Pb(HCO3)2(aq)? Just wanting to make sure this correct: 2Na+(aq) + S2-(aq) + Pb2+(aq) + 2HCO3-(aq) --> 2Na+(aq) + 2HCO3-(aq) + PbS(s)

**Chemistry**

What mass of NO2 is formed by the complete reaction of 2 mol O3 with excess NO in the reaction? O3 + NO --> O2 + NO2 I know the molar mass of O3 is 48 g/mol and NO2 46 g/mol a) 23.0 g b) 46.0 g c) 92.0 g d) 96.0 g

**Chemistry**

What is the empirical formula for a compound of sodium and oxygen that contains 59% by mass? I am guessing it would be NaO because the molar mass of Na is 22.99 g/mol and 22.99 g/mol Na / 22.99 + 16 is approx 59%. Just wanted to make sure that is correct.

**Chemistry**

Okay, that makes since. The % amount of hydrogen in water is going to stay the same no matter how many grams of water you have.

**Chemistry**

Would it be 5.560%?

**Chemistry**

A 10.000 g sample of water contains 11.19% H by mass. What would by the %H in a 20.000 g sample of water? I got 22.38%, would that be correct?

**Chemistry**

Which compound has the highest lattice energy? a) CaO b) LiF c) MgO d) NaF I am guessing B because Lithium has the lowest energy level?

**Chemistry**

An unknown metal, m, forms an ionic compound with the formula, M2S3. Which formula represents the compound formed by the metal with oxygen? a) MO b) MO2 c) MO3 d) M2O3

**Chemistry**

HI is formed from the overlap of a hydrogen 1s orbital with an iodine 3p orbital? is that correct? I am having trouble with the iodine orbital, thank you.

**Calculus**

Consider the differential equation dy/dx = 2x - y. Let y = f(x) be the particular solution to the differential equation with the initial condition f(2) = 3. Does f have a relative min, relative max, or neither at x = 2? Since we're trying to find a max/min I don't ...

**Chemistry**

Total area = 5.0 x 101 x 2.10 m^2 =_____m^2 Total solar power falling on heliostats = 1420 W/m^2 x _____ m^2 = ______W 26700 W * 100 / ______W = ______% efficiency.

**Math**

I added from a and b 3+2=5 and the 4 was left then added =4=9. I really didn't know what I was doing your right I just didn't know =4 was left it was just a guess

**Math**

That's all information they gave me.

**Math**

So the answer would be 31 -13 _____ 18

**Math (integrals) (Substitution)**

=- ? (4-u)sqrt(u) du =- ? (4-u)u^(1/2) du ***= -4?u^.5du + ?u^1.5 du ***= -4(u^1.5/1.5) + u^2.5/2.5 + c ***= -(8/3)u^(3/2) + (2/5)u^(5/2)+c we disagree about sign of second term =- ? 4u^(1/2) - u^(3/2) du =-4? u^(1/2) - u^(3/2) du =-4((2/3)u^(3/2) - (2/5)u^(5/2)) =-4((2/3)(4-x...

**typo**

VOLTAGE = I R sin wt

**physics**

7.75 * 1.414 If current = I sin wt and current = I R sin wt then power = I^2 R sin^2 wt average of sin^2 = (1/2) so average power = (1/2)I^2 R = Irms^2 R so I^2 = 2 Irms^2 and as we said to start I = sqrt(2) Irms = 1.414 Irms

**physics**

The rms output in a circuit is 7.75 A. What is the maximum current?

**Math**

time on bus = (5/60)hr = (5/60)(60) = 5 minutes so he walked for 20 inutes 20 minutes (1 hour/60 min) = (1/3)hr 2 km/(1/3)hr = 6 km/hr

**Math**

Yumi walked 2 km to a bus stop to catch the bust to school. The bus arrived straight away and averaged 60km/h for the 5km trip. Yumi's total travelling time was 25 minutes. at what average speed did Yumi walk to the bus stop? The answer is 6, but the only thing I could ...

**Physics**

An electron moves to the left with a velocity of 3.2 x 10^5 m/s and has a magnetic force of 5.6 x 10^-17 N exerted on it. What is the magnitude of the magnitude field? Assume the charge has a value of 1.60 x 10^-19 C.

**Social Studies**

How do nearby businesses with similar products usually compete? (1 point) A. offering deals and low prices B. changing to different product types C. lowering the level of service to save costs D. establishing a minimum price for everyone to use

**geometry**

Lateral area does not include the base, so we want the total area of just the four triangles that make up the other faces. These triangles are isosceles and congruent to one another, since this square pyramid is regular. Draw one of these isosceles triangles and label it with ...