# Posts by Tiffany

Total # Posts: 942

algebra
solve the system of equations using substitution. y = 4x + 2 y = 3x + 6 a. (4, 18) b. (–4, –14) c. (–14, –4) d. (–4, –6)

algebra
Choose the compound inequality that repesents the situation. all real numbers at least –6 and at most 3 –6 >=x >= 3 –6 >=x >= 3 –6 < x < 3 –6 <=x <= 3

algebra
Choose the compound inequality that repesents the situation. all real numbers at least –6 and at most 3 –6 >x > 3 –6 >x > 3 –6 < x < 3 –6 <x < 3

bio
Discuss three types of fossils and how they are formed.

bio
Discuss how the external environment of an organism can affect gene function.

Biology
Compare and contrast the terms aerobic process and anaerobic process.

Biology
Explain the importance of carbon's ability to form covalent bonds in straight chains, branched chains, or rings.

Bio
An electromagnet can be made by wrapping insulated wire around an iron nail and connecting the ends of the wire to a 6-volt battery. HYPOTHESIS: Increasing the number of coils of wire wrapped around the nail increases the strength of the electromagnet, as measured by the ...

english
How does " an occurence at owl creek bridge" a reflection of the period of time?

asymptotes and graphing, f
graph and identify the horizontal asymptote y=7(1/4)x

English
Write 5 sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each. 1. Education "is very" (simple present tense) important in your critical role for financial success. 2. I'm "trying&...

Math
Suppose you earn \$7 per hour The number of hours you work (input) determines your pay (output) i need the inputs and outputs

Math
complete the pattern 3 8 13 18 23 what three numbers come next?

prob. statistics
a survey indicates that 41% of women in the us consider reading as their favorite leisure time activity. you randomly select 4 women and ask them if reading is their favorite leisure time activity. find the probability that exactly 2 of them said yes

chemistry
there is 4.5 grams of acetic acid in 100 ml of water. how many moles of acetic acid is that?

Math
78

child care
thanks bobpursley ok 6 is not b so i think is a? and 20 if its 25-30% its b?

thanks bobpursley ok 6 is not b so i think is a? and 20 if its 25-30% its b?

thanks bobpursley ok 6 is not b so i think is a? and 20 if its 25-30% its b?

hello i need someone to check these for me? 6) alcohol,drugs,radiation,and pollutants that affect a child development are called a.teratogens b.toxic inhibitors c.tranferal agents. d.phenylanines 10) monstrates an inability to leap over a barrier, his teacher checks to see if ...

child care
hello i need someone to check these for me? 6) alcohol,drugs,radiation,and pollutants that affect a child development are called a.teratogens b.toxic inhibitors c.tranferal agents. d.phenylanines 10) monstrates an inability to leap over a barrier, his teacher checks to see if ...

hello i need someone to check these for me? 6) alcohol,drugs,radiation,and pollutants that affect a child development are called a.teratogens b.toxic inhibitors c.tranferal agents. d.phenylanines 10) monstrates an inability to leap over a barrier, his teacher checks to see if ...

1) A strategy for health promotion among infants toddlers and young children focuses on educational programs physical fitness activities and a. family planning b.tobacco,alcohol, and drug use. c.Nutrition. d.mental health & menta disorders. 2)The main goal of effective health...

chemistry
After writing a balanced equation for the reaction between magnesium and hydrochloric acid, calculate the mass of magnesium needed to produce 90ml of hydrogen gas @ STP conditions.

Calculus

General Physic
The time it takes for an object dropped from the top of cliff A to hit the water in the lake below is twice the time it takes for another object dropped from the top of cliff B to reach the lake. If it takes 2.30 s for the object to fall from cliff A to the water, what are the...

english (Frederick Douglass)
Whatis the most important description of Mr. Gore?

english (Frederick Douglass)
Why do you think Douglass says of the killing of slave Demby ‘in an instant poor Demby was no more. His mangled body sank out of sight, and blood and brains marked the water where he stood.”?

sociology
Im in Illinois and Yes its the same book Chapter 12 pg 365... Im so lost and don't know where to start. From Rasmussen as well. LOL

history
How did the settlement house movement differ from earlier attempts to relieve poverty?

history
in the 1800s

history
How did professionalization meet the needs of the developing American economy In the urban life?

childcare
ok thanks

childcare
its for my homework

childcare
exam 00383001 need help withj 5 questions

childcare
thanks :O)

What is the best website to practice direct and indirect speech, adjectives and verbs for free? Thank you

physics
When a woman runs 140 meters north and then 60 meters west, what is the magnitude of her total displacement?

Physics
How does progress today differ from progress thousands of years ago?

MATH
3 OUT OF EVERY 4 STUDENT HAVE A COMPUTER AT HOME IF THERE ARE80 STUDENTS HOW MANY HAVE COMPUTERS AT HOME

MATH
IN A CLASS 3 OUT OF EVERY 7 STUDENT ARE MALES IF THERE ARE 27 MALES HOW MANY STUDENT ARE IN THE CLASS

Why was it important to the Founding Fathers to justify their actions by evoking traditional English rights?

_____ believed that there should be no limits to the power of the government once the will of the people was determined.

physics
Suppose I have a spring. I add a mass (m = 1.0 kg) and it is displaced by 15 cm. What is the spring constant k in units of (N/m)?

Accounting
Need help with this bank reconciliation...this is actually for a job and I am forgetting everything about accounting because I am nervous. BANK RECONCILATION ============================================== On Aug 14th, One of our Partner's ( Compuville ) cash book showed a ...

algebra
Use muliplying by 1 to find an expression equivalent to 10/13 with a dominator of 39a Please kindly help. I don't understand what to do. Thanks!

math116
-8x-27=-32 1/5 the solution must be in the form as an integer or simplified fraction. Thank you.

PHYSICS ---HELP!
A patient is to be given a blood transfusion. The blood is to flow through a tube from a raised bottle to a needle inserted in the vein . The inside diameter of the 4.8 cm long needle is 0.48 mm, and the required flow rate is 4.9 cm/3 of blood per minute. How high should the ...

physics
Blood from an animal is placed in a bottle 2.0 m above a 3.4 cm long needle, of inside diameter 0.35 mm, from which it flows at a rate of 2.9 cm^3/min. What is the viscosity of this blood? Assume Pblood}=1.05 * 10^3 kg/m^3.

chemistry
a 5% acetic acid solution contains -----grams of acetic acid per ------

College Algebra
USE MULTIPLICATION PRINCIPLE - X/2 = 8 X=_________ I APPRECIATE THE HELP!

math
complete the order triple 8x-y+z=22, 4x+2y-3z=13, x-3y+2x=-6

Alg & Trig 2
find the sum of 1/2, 2/7x, and 5/x

Alg & Trig 2
find the sum of 1/2, 2/7x, and 5/x

Chemistry
Calculate the enthalpy change in kJ when 21.6g of H2S is burned. 2H2S(g) + 3O2(g) --> 2SO2(g) + 2H20(g) Change in H=-1036kJ/mol

Which economic system is the best solution to handling a crisis of epic proportion?

Physics Help!!
Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg*m^3 of radius 120 km and height 4.5 km. Make a crude estimate of the ...

science
Which of the following chemical reactions is written to show that mass is conserved? A H2O to H2+O2 B CH4+202 to CO2+2H2O C Mg+HCI to 3MgCI0+H2 D N2+H2 to NH

Physics
A 3.6 m diameter merry-go-round is rotating freely with an angular velocity of 0.78 rad/s. Its total moment of inertia is 1700 kg m^2. Four people standing on the ground, each of mass 62 kg, suddenly step onto the edge of the merry-go-round. What is the angular velocity of the...

English
Idententify the sentence parts - Whose car did the parking attendant tow yesterday?

phsics
for this you just take the inverse tan of .4 and will get theta.

consumer math
\$400.OO

Finance
what is the present value of 1000 paid at the end of each of the next 100 years if the interest rate is 7% per year

College Algebra and Trig
a rancher has 12,000 feet of fence to enclose 5 adjacent pens. determine the outer rectangular dimensions that result the maximum enclosed area.

math
Erica took 2 days to drive 1,020 miles. On the first day she drove 10 hours at an average spped of 62 mile per hour. on the second day, her average spped was 57 miles per hour. approx. how long did she drive on the 2nd day?

geometry
A manufacturer wants to make a rectangular storage box with volume 0.75 cubic meters, length 1.5 meters and width 0.4 meters. What is the height of the box?

math
the coordinates of triangle KLM are K(-2,-5), L(0,1), M(6,-2) What type of triangle is KLM? A) obtuse isosceles B) acute scalene C) right isosceles D) right scalene

GEOMETRY
Alicia is 5ft tall. she casts a shadow that measures 6 1/2 feet long at the same time that a sculpture in the park casts a shadow 12 ft long. which of the following is the approximate height of the sculpture? a) 2.0 miles b) 6.6 miles c) 12 miles d) 15.6 miles

Ohlone
6moles

math
how do you find the function of the domaine

social studies

Chem.
Suppose that 55 mL of 0.2 M LiOH and 55 mL of 0.3 M HNO2 are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.?

Chemistry
NH4+ OH-=NH3+H20

Chemistry
NH4+ + OH- NH3 + H2O What is the K for the reaction above in terms of Ka's, Kb's, Kw etc.?

Psychology
What different tools of psychology help us with work and everyday life situations?

Chemistry
Calculate the solubility of LaF3 in grams per liter in the following solutions. The Ksp of LaF3 is 2.01 e-19. (a) pure water (b) 0.051 M KF solution (c) 0.065 M LaCl3 solution

physics
Your groceries are in a bag with paper handles. The handles will tear off if a force greater than 59 N is applied to them. (a) What is the greatest mass of groceries that can be lifted safely with this bag, given that the bag is raised with constant speed? kg (b) What if it is...

see Marjorie's personality as shallow

math
-2(-5+2)-3(3-4)-5

math
on a single day the temperature in alaska dropped from a high of -12 f to a low of -50. what os the difference between the high and low temperatures

Chemistry
3H2(g)+N2(g)=2NH3(g) Suppose the equilibrium constant Kp = 0.003337 for the reaction above. If the equilibrium mixture contains partial pressures H2 = 0.400 atm and N2 = 0.350 atm. What is the equilibrium partial pressure of NH3 in atm?

physics
A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an initial speed of 17 m/s. If the brick is in flight for 2.5 s, how tall is the building?

Algebra
how do you factor 4c^3-500 ?

art
please help me pick a favorite harlem Renaissance name of the picture date/time material used. and used for and symbolism

college art
please help me pick a favorite harlem Renaissance name of the picture date/time material used. and used for and symbolism

physics
A truck covers 40.0 m in 8.60 s while smoothly slowing down to a final velocity of 2.00 m/s. (a) Find the truck's original speed. (b) Find its acceleration.

Chemistry
Some physical properties of water are shown below. freezing point 0.00°C boiling point 100.00°C Kf 1.86°C/m Kb 0.512°C/m A 16.0 g sample of a compound known to contain 3 ion species is dissolved in 100. g of water. The boiling point of the solution is 103.6°...

Chemistry
If you are making 430.0 g of 0.41 m Na2SO3, how many grams of the solute should you use? I got 20 grams, but I don't think this is the right answer.

math
There are about 9ft per yard

math
Area= 2(L+W)

Grammar
Thank you

Grammar
(Check these please)Identify these sentences as compound, simple or run-on sentences. 5. Percy Shelley traveled in Europe and visited friends.(simple) 6. Shelley made friends with other poets; John Keats was Shelley's friend.(compound) 7. William Godwin was another friend...

chemistry
Which of the following are solutions? Choose all that apply. (Note: do not pick heterogeneous systems that contain a homogeneous phase.) - Cold coffee or cold tea. -Cigarette smoke. - Tap water. - Milk. - Fog. - The air typically found in a room. - Pure water.

chemistry
11:54Am

thank you

Find the Perimeter and area of each square and rectangle. On my actual paper I have the cm and in behind the numbers along with the area's squared sign I just didn't know how to put that on here. 1. L2 W3 A=6 P=10 2. L1 W1 A=1 P=4 3. L7 W1 A=7 P=16 4. L7 W7 A=49 P=28 5...

Grammar
Thank you

Grammar
Is this one right. The most likely theory, perhaps,/called it a comet of tiny pieces of metal.

Grammar
Separate the complete subject and the complete predicate. There are many theories/ about the Tunguska Fireball. Is this right?

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