Wednesday
April 23, 2014

Posts by alex


Total # Posts: 2,503

5th grade math (word problems)
I got these problems wrong in class. but, think i have the right answer now. Can you check? 1. Jim's mother made pizzas for his birthday. SHe sliced the pizzas into 50 slices. She served Jeff and his 7 guests the same number of slices and she ate the rest. How many pieces ...

Math
$27 is left.

Social Studies
Pacific.

5th grade math (word problems)
Thank you Ms. Sue!!

5th grade math (word problems)
I'm not sure how to solve the following problem. I don't think i have enough information. Ali deposited $120 in her savings account. This represents 75% of the money she received for her birthday. She pent the rest of her money on a lego toy. How much did the lego cost...

english
Clark sees that the wind in the nebraska setting has changed aunt georgina by? A. bending her shoulsers B. rotting her teeth C. yellowing her skin D. dirttying her clothes

spanish
this is part of a spanish project and i need to know if i placed the accent marks correctly or forgot to put some of them. please help! Inglés Matemáticas Ciencias Sociales Ciencias Naturales Arte Música Geometria Biologia Hay que llevar el carnet de ident...

Social studies
what are the 50 us states postal abbreviations and state numbers?

Physics
A 100 watt bulb emits light in all directions. The distance R from the bulb is equal to 1.0 meter. Complete the table below with calculated values of intensity of the bulb. Distance from Source Intensity (W/m2) R ? 2R ? 3R ? c) If the bulb was replaced by a 75 watt bulb, at p...

Physics
A radio tunes in radio waves which have a wavelength of 3.13 meters. What frequency is the radio tuned to in MHz?

Physics
An astronomer looks at a comet which is 5.92 x 109 km away. How many minutes did it take the light from the comet to reach the astronomer?

3rd grade math
4 Quarters times 8 Minutes times 7 games is 224 minutes.

physical science
Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why?

chemistry
Hey, I was just struggling with a question that I need to figure out to help me with my next lab, so if any of you guys could help me that would be greatly appreciated. Question: write a balanced equation for the reaction between H2O2 and acidified MnO4-

Math
6_5

physical science
Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why?

physical science
10. A balloon has a volume of 0.5 L at 20°C. What will the volume be if the balloon is heated to 150°C? Assume constant pressure and mass.

physical science
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?

physical science
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?

physical science
Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why? this is the answer

physical science
I was not wrong

physical science
1. Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why in your own words.

chemistry
What volume (mL) of a 3.23 %w/v saline solution contains 69.1 mg of NaCl?

science
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?

science
1. Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why in your own words.

CHEMISTRY
Hydrogen cyanide is used in the production of cyanimid fertilisers. It is produced by the following reaction: 2CH4 + 2NH3 + 3O2  2HCN + 6H2O (a) How much hydrogen cyanide can be produced starting with 100 kg of each of the reactants? (b) Which is the limiting reagent?

biology
what characteristics appear to show consistent development over the 4 million years of hominid evolution?

English
Help! I need help unscrambling these letters into two words it is due tommorow! The letters are tttrrlnemisianaaon it is the name of a mall, remember its a two letter word

Math
At a certain time of day, a tree that is Xft tall cast a shadow that is X-35 meters long if the distance from the top of the tree to the end of the shadow is X+5 meters, what is the height, X, of the tree?

Math
24x^3y^2/42x^7y^-6 please help i need to simplify i can only use positive intergers

Math
24x^3y^2/42x^7y^-6 please help i need to simplify i can only use positive intergers

Math
24x^3y^2/42x^7y^-6 please help i need to simplify i can only use positive intergers

biology
In a chorus of male frogs of one species, which would be considered by evolutionary biologists to be the fittest? The biggest frog. The frog that has the most descendants. The frog with the largest territory. The loudest frog. The frog that attracts the most females. I am betw...

biology urgent
In mice, a gene controlling coat colour has 2 alleles; B (black) and b (white). A pure breeding black mouse is crossed to a white mouse and all the offspring are black. The offspring are then crossed to white mice. The phenotypes of the offspring of this second cross are expec...

Math help
thank you

Math help
Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenth length 10 cm width 4 cm height 10 dont tell me the answer just show me how to do it

Math Alex
the options are 14.7 10.8 12.2 15.6

Math Alex
Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenth length 10 com width 4 height 10

Chemistry
Ammonia is composed of hydrogen and nitrogen in a ratio of 9.33 g of nitrogen to 2.00 g of hydrogen. If 2.19 g of nitrogen combined completely with hydrogen to form ammonia, what mass (g) of ammonia would be formed?

Algebra
I am pretty sure this goes like this 4y+3=3y+x (i) 2x+4y=18 (ii) Rearrange (i) so that x=4y+3-3y Take (ii) and sub x it will become 2(4y+3-3y)+4y= 18 2(y+3)+4y =18 2y+6+4y=18 6y+6=18 6y=18-6 6y=12 y=12/6 y=2 (iii) Now use what you found for y in (iii) and sub in the (ii or i t...

Math question?
how to get diagonal saying lenght hight width

Math question?
Calculate the length of the diagonal for the given rectangular prism. It says length hight width but in the lesson it says length hight deph how to i find the diagonal example

Math ASAP
Bonnie has a rectangular photographic print that is 5 inches wide and 7 inches long. If she multiplies both the length and width by 1.5, how will the perimeter of the print increase?

English help ASAP
thanks

English help ASAP
Which of the sentences below is punctuated correctly? (1 point )I opened the door and my cat ran outside. I opened the door, and my cat ran outside. I opened the door, my cat ran outside. i think its 2

music
Started by the creoles and went away from the norm of the classical and romantic style in western Europe. Also, it had slave rhythms which were unique to each plantation.

Math
Kelsea has 6 coins. One-third of her coins are dimes. The value of the dimes is one-fourth the value of the coins. How much money does Kelsea have?

Math Please answer
how to find slope of a graph without points please make it as simple as possible

Statistics
69

math!!!!!!
the options are 6 3 9 and 12 i think its 9

math!!!!!!
How many lateral edges are there in a triangular prism

Math problem
The area of a triangle is equal to 1/2 the hight times the base. A triangle has a height of 10 and a base of 20. If the height of the triangle is increased by 10% and the base is decreased by 10%, then the area of the new triangle formed___________. ? a)stayed the same b) decr...

Physics
A quantity of monatomic ideal gas expands adiabatically from a volume of 2.0 liters to 6.0 liters. If the initial pressure is P0, what is the final pressure?

physics
As your bus rounds a flat curve at constant speed, a package with mass 0.900 , suspended from the luggage compartment of the bus by a string 46.0 long, is found to hang at rest relative to the bus, with the string making an angle of 27.0with the vertical. In this position, the...

physics
A toboggan approaches a snowy hill moving at 15.0 m/s. The coefficients of static and kinetic friction between the snow and the toboggan are 0.460 and 0.350, respectively, and the hill slopes upward at 41.0 above the horizontal. Find the acceleration of the toboggan as it is g...

Social studies ASAP
Which of the following helped to increase the populations of northeastern cities more diversity successful cotton crops growth of factories and trade building of the Erie Canal i chose building of the erie canal

science
1. When you hold a piece of chocolate in your hand, why does the chocolate melt? 2. Which is a larger unit of heat: calorie, kilocalorie, Btu, or joule?

math probability
If I had the many black grey and white socks and i pulled out 2 socks that did not match. How many more socks do i have to take out of my drawer to be certain to have a matching pair

maths
Using properties of the triple scalar product and triple vector product, prove that (a ^ b)  (c ^ d) = (a  *c)(b * d) - (a * d)(b * c): [Hint: start by thinking of (a ^ b)  (c ^ d) as (a ^ b)  e, where e = c ^ d]

math
Find the percent of decrease. Original rent: $600 New rent: $450

history
who was the united states able to win the war in the pacific?

history
who was commander of the u.s. troops on bataan?

Physics
The radio station WBRU broadcasts in the radio spectrum at 95.5 MHz. What is the wavelength of this electromagnetic wave in meters?

Math
Please help with the following questions: 1. write 12 million in scientific notation 2. Write 17,600 in scientific notation 3. write 1.2 * 10 to the fourth power in standard form 4. write 5 * 10 to the sixth power in standard form

history
thanks

history
what was necessary for the united states to be able to increase its production of war materials in a short period of time?

Geography
What is the name of the salt lake located on the border between Israel and Jordan? I think the answer is the Dead Sea, is that right?

science
Would you expect a substance to be a solid, liquid, or gas at absolute zero? Explain your answer.

math ALGEBRA 1 PLEASE HELP!
You have $2.75 in dimes and quarters, and you have a total of 17 dimes and quarters. How many of each type of coin do you have?

Algebra
how to flowchart and backtrack 10 = 0.25x - 0.25

5th Grade Math
Glenda bought z containers of laundry detergent at $9 each. She gave the cashier $50. a. Find the change Glenda received in terms of z. b. If z = 3, how much change did Glenda receive?

5th grade Language Arts
I missed these questions on homework about adjectives. Can you double check my corrections? Directions: 1. tell what is the adjective 2. what noun or pronoun it's describing Sentences: 1. Rhode Island is a small state. My orig ans: 1. small, 2. Rhode Island Correction: 1. ...

geography
when did the seat of Japanese Emperors moved from Kyoto to Edo

math ALGEBRA 1 PLEASE HELP!
You and two friends scored all 7 runs for your team in a baseball game. Jeff scored twice as many runs as you, and Mary scored twice as many runs as Jeff. How many runs did Jeff score?

Math
A rectangular field will be fenced on all four sides. Fencing for the north and south sides costs $5 per foot and fencing for the other two sides costs $9 per foot. What is the maximum area that can be enclosed for $6000?

Geography
Which state capital is east of the 90 degree W longitude line: Jackson, Indianapolis, or St Paul. I think that Indianapolis is the answer is that correct? Also, Is this correct? The Pacific Ocean is East of Asia, East of Australia, West of North America and West of South Ameri...

math
Alex has 1/2 pizza left in the fridge. At breakfast he ate 1/3 of it. What fraction of the original pizza does he have left?

Chemistry
Write the half-reactions for F3+ + I- ---> F2+ + I2 and balance it.

Trigonometry
a. Write a formula for Q as a function of t. b. What is the value of Q when t=10 1. Initial amount 2000; increasing by 5% per year 2. Initial amount 112.8; decreasing by 23.4% per year 3. Initial amount 5; increasing by 100% per year

5th grade Language Arts
I have a couple of phrases/sentences that need to be labeled as a type of figurative language. 1. Pitter Patter, raindrops are falling from the sky. (could this be onomatopoeia or personification?) 2. Boil the butter and bring it by the bank. (could this be an idiom or alliter...

Physics
a stone thrown from ground level returns to the same level of projection 4s after. with what speed was the stone thrown? Take g=10 m/s2

math
the sum of the reciprocals of 3 consecutive positive integers is 47 divided by the product of the integers. what is the smallest of the 3 integers

math
the sum of the reciprocals of 3 consecutive positive integers is egual to 47 divided by the product of the integers. what is the smallest of the 3 integers

Physics
Black Holes are suspected when a visible star is being noticeably pulled by an invisible partner that is more than 3 times as massive as the Sun. A red giant star is accelerated in a linear direction by gravity at 0.075 m/s2 towards an object that is 9.4 x1010 m away. a) What ...

Physics
The International Space Station is 370 km above the Earth's surface (Re = 6378 km, Me = 5.98 x 10^24 kg). What is the linear velocity of the space station in m/s

chemistry
The solubility of strontium oxide, SrO, in water is 22.8 g per 100 mL at 100 °C and 0.69 g per 100 mL at 30 °C. Is the dissolving of strontium oxide in water an endothermic or exothermic process?

math PLEASE HELP IM STUCK!!!
Admissions to a concert cost $45. A vendor sells t-shirts for $12 each. What is the maximum number of t-shirts you can buy?

math
admissions to a concerto cost $45. A vendor sells t-shirts for $12. You have $90. What is the maximum number of t-shirts you can buy?

science
how much potential energy did the object have before it fell?

science
a cart was pulled for a distance of 1 kilometer and the amount of work accomplished equal 40.000 joules. with what force was the work accomplished?

science
a cart was pulled for a distance of 1 kilometer and the amount of work accomplished equal 40.000 joules. with what force was the work accomplished?

physical science
push a box across a table with a force of 5 newtons and the box moves 0.5 meter. how much work has been accomplished?

math
I was confused somewhat more difficult

math
solve each system by elimination x+y=10 x-y=2

math
1. y=xt1 2x+y=7 2. x=y-2 3x-y=6 3. y=2xt3 5x-y=-3

algebra
solve each system by substitution 1. 6x-3y=-33 2xty=-1 2. 2x-y=7 3x-2y=10 3. 4x=8y 2x+5y=27

physical science
Mike jogs east at a rate of 4 mph. The wind is blowing west at 1 mph. What is Mike's velocity?

algebra
supose you bought eight oranges and one grapefruit for a total of $4.60. later day, you bought six oranges and three grapefruits for a total of $4.80. what is the price of each type of fruit?

algebra 2
please help me

Algebra 2
Write a polynomial function in standard form with the given zeros: x=2,-2,4

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