# Posts by LaLa

Total # Posts: 399

**math**

if the probability that an event E occurs is 1/p+1, then find the probability that E does not occur in terms of a simple fraction

**math**

if the probability that an event E occurs is 1/p+1, then find the probability that E does not occur in terms of a simple fraction

**math**

tracy is 7 times as old as heather. if let x be the age of heather now. If in five years time , tracy will be four times as old as heather, write an equation involving x and solve it to find what tracy's age is now.

**Algebra **

Solve for x. 4(12)4x=1000 Enter your answer to the nearest hundredth in the box. x ? 5.21

**Science**

(nvm my parent just submitted this science quiz for me, so now I have 6/7 questions right and two essays waiting for points)

**Science**

1. How did planetesmals form planets? A. They broke apart into smaller chunks. B. They collided and stuck together.<<(I think it's this answer) C. They cooled and pulled ice together. D. They began to rotate. 2. What distance was used to define the astronomical unit...

**Social Studies**

Maybe 1 is D and 2 is B?

**Social Studies**

1. Which river helped Rome grow and expand? A. Tigris<<(I think this is my answer) B. Alps C. Tiber D. Euphrates 2. Being away from the shore and on top of hills meant that Rome can be easily A. farmed. B. defended. C. bribed. D. attacked.<<(I think that this is my...

**math**

if A=5^3*7^3*3^4, find the smallest number A must be multiplied to get a perfect square

**math**

from a group of 5 people, how many ways can 3 be selected?

**Chemistry**

the right answer is 2.42x10^-19J. but once i plug the numbers on my calculator i get an error message.

**Chemistry**

Calculate the energy needed to ionize an electron of H atoms from its second excited state.

**Penn foster**

Please help me in this Exam Number 059839RR Gourmet Essentials

**Penn foster**

A healthier substitution for one egg is

**Social Studies 6 B**

I don't know if I feel like reading it but maybe 1 is D, 2 is B, 3 is A, and 4 is C.

**Social Studies 6 B**

Well, for this quick check. I think that 1 is A, 2 is C, 3 is D, and 4 is B. But, I am not sure which one is right and which one is wrong.

**Social Studies 6 B**

I know but I do not know the answers.

**Social Studies 6 B**

Ok but I'm in connexus and I don't know the right answers to this quick check.

**Social Studies 6 B**

1. The Saraswati River was a twin to which other river? A. Ganges. B. Tigris. C. Himalaya. D. Indus. 2. Glacial runoff and ________ provide the water for the large rivers of India. A. underground wells. B. melting snow. C. rain. D. steam. 3. Saraswati means A. "god of the...

**Finance**

You plan on depositing $10,000 at the end of each year for 30 years into a retirement account that pays 5% interest. How much could you withdraw annually in equal beginning of year amounts starting at the time you make your last deposit and continuing for a total of 20 years, ...

**Finance**

EMAR expects to receive $2,000 per year for 10 years and $3,500 per year for the next 10 years. What is the present value of this 20-year cash flow? Use an 7% discount rate.

**Finance**

Suppose you borrowed $15,000 at a rate of 9% and must repay it in 5 equal installments at the end of each of the next 5 years. What is the outstanding balance of the loan at the end of second year?

**Math**

9:2x=15:12 , so x= ..?

**physics**

a car travels at 25m/s on a slick road takes 4 second to come to a complete stop. what was the car's average acceleration over 4 second?

**Math**

A garden is 3m wThere is a pathway that runs along the perimeter inside the garden.If the area of pathway is half of the area of garden, then the width of the pathway is how many meters?

**English**

In the Night The Bed Fell, what is the father's reaction to the scene he discovers when he opens the attic door? He is ready to chase a burglar He's worried someone's been hurt He wants to know what's happened He's glad that everyone's all right My ...

**Math**

OF COURAE ITS B!!!

**Math**

Find the quantity of which: 5.4 kg is 45%

**physics**

0.1 n/m

**math**

361.14

**English (Langue Arts)**

What does the following quote from “The cask of Amontillado “ reveal about what Montresor wants his servants to do ? "I had told them that I should not return until the morning and has given them explicit orders not to stir from the house. These orders were ...

**accountung**

23.50 per mo for 540 min

**accountung**

a fixed mo fee of 22.00 up to 510 min. then .05 per min thereafter if i use less than 510 min i still pay 22.00 per month based on 100 min/ 240 min. 540 min.

**accounting**

paying a fixed monthly fee of $15.00 up yo 240 min then .08 per min if i use less than 240 min still paying 15.00 per mo. based on 100 min 240 min 540 min

**Accounting**

variable cost, fixed cost, total costif .10 per min long dist calling based on 100 min, 240 min, and 540 min

**Math**

I wish that I knew the answer to help. I have the same question I need to answer

**Biology**

@MsSue

**Biology**

I think it is a and c

**Biology**

Which of the following animals are considered hominiods? Select all that apply. gibbons Old World Monkey orangutans tarsiers

**Biology**

So is it five percent @MsSue

**Biology**

I think it is 5% I'm not sure

**Biology**

What percentage of animals on earth are vertibrates? 5% 25% 50% 95%

**maths**

A car completes a trip in 20 minutes. for the first half of the trip the speed of the car was 100km/h and the speed for the second half of the trip was 90km/h. How far did the car travel (in km) if the distance for the first part is the same as the second part

**math**

3 group of w is what in algebraic expression

**SS 1 QUESTION PLZ HELP**

Are these right for sure?

**Socialsl studies**

No, He's right

**chemisty**

Gary is carrying out two chemistry experiments. In experiment A he mixes hydrochloric acid with sodium carbonate. In experiment B he mixes nitric acid with copper carbonate. Explain what Gary will need to do in order to test the gas produced in each experiment. I don't ...

**Math help**

A small recording studio that produce its own records is able to press 100 records a day for a profit of $3.60 per record. If a more expensive process is used, production can be increased, but the profit per record diminishes by 2 cents for each additional record produced. how...

**Matsci**

If the absolute pressure at the bottom of the ocean is 120 kPa, how deep is the water at this point

**Statistics, Math**

For 30 randomly selected Rolling Stones concerts, the mean gross earnings is 2.37 million dollars. Assuming a population standard deviation gross earnings of 0.52 million dollars, obtain a 99% confidence interval for the mean gross earnings of all Rolling Stones concerts (in ...

**science help**

No it's c.

**Math**

It is 2 5/8

**chem**

Calculate the number of kJ released for the reaction shown below, if you begin with 52 grams of fluorine (F2), and the ΔH = -542 kJ. H2(g) + F2(g) → 2 HF(g)

**integrated science**

with all other factors equal, if you double the balanced force on an abject of a given mass the acceleration will be?

**Math sequences**

Determine the smallest interger n such that 1+(4/5)+(4/5)^2+...+(4/5)^n>4.9 Please explain ti me about thisquestion. I can'tunderstand it.

**Science**

Omygossh thanks damon!!! :)

**Science**

The rider of a ferris wheel moves at a rate of 0.18 m/s2. If the rider is 5.0 m from the center of the ferris wheel, What is his/her Velocity? Can't figure out if the RADIUS and RATE are the same and Which one is the radius/rate?

**Math**

1.) In the following problem, write the first five of the terms of the arithmetic sequence. a1=16.5 d=0.25 2.) Find a the correct formula for the an for the arithmetic sequence. a1=-1 d=5

**Science**

the energy an object has due to it's motion is called a what?

**Science**

All corret!!!

**quick question**

could you tell me what there asking for ?

**quick question**

what are three programs financed from one payroll tax to which employers and employees contribute at a rate specified by law ?

**Science**

The answer is not B it's D!!!!

**Math**

Find the exact value: cos(pi/16)cos(3pi/16)-sin(pi/16)sin(3pi/16)

**algebra**

A fuel storage tank has one supply pump and two identical outlet pumps. With one outlet pump running, the supply pump can increase the fuel level in the storage tank by 8450 gallons in 30 minutes. With both outlet pumps running, the supply pump can increase the fuel level in ...

**algebra**

A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip took 9 hours. Find the rate of the boat in calm water and the rate of the current. rate of boat___ mph rate of current___ mph

**Science 8 - Check Answers**

What are the answers at

**calc 3**

1. Evaluate the given integral by making an appropriate change of variables, where R is the region in the first quadrant bounded by the ellipse 36x^2+25y^2=1. L= double integral R (4sin(144x^2+100y^2) dA. 2. Use the given transformation to evaluate the given integral, where R ...

**chemistry**

Calculate the pH of 0,3g calcium hydroxide dissolved in water to give 500ml solution.

**Language Arts**

Are you guys going to Connexus?

**college algebra**

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature, °F af 40 760 60 ...

**college algebra**

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min) Temperature (F) 15 2200...

**Physics**

A square loop of wire of side 3.0 cm carries 3.0 A of current. A uniform magnetic field of magnitude 0.67 T makes an angle of 37degree with the plane of the loop. What is the magnitude of the torque on the loop? What is the net magnetic force on the loop?

**Physics**

a singly charged ion of uknown mass moves in a circle of radius 12.5 cm in a magnetic field of 1.7 t. the ion was accelerated through qa potential difference of 5.7 kv before it entered the magnetic field. what is the mass of the ion

**Math**

Determine if correct or incorrect and justify yourself. n^3 = O(n^2 + n^3) The O is the big Oh notation.

**4th grade math**

If jill climbed 100 feet more, how many feet above sea level would she be?

**Economic**

capital rationing assumes?

**Economic**

a 20 year bond pays on a face value of $1,000. If similar bonds are currently yielding 9%. What is the Market value of the bond?

**Economic**

Suppose a firm has a constant marginal cost of$10 the current price of the product is $25, and at that price, it is estimated that the price elasticity of demand is -3.0. Is the firm charging the optimal price for the product? Demonstrate how you know.

**English! - Help!**

It's different questions if you're in honors or not in honors

**math**

20. Which of the following rectangles is similar to a rectangle that measures 13 units by 25 units?

**chem**

1) how many molecules are present in 1.5 moles of NaCl? 2) how many atoms of chlorine are in 19.0 grams of MgCl2?

**Help Mrs.Sue LA**

18.When she is shy and doesnt want the teacher to pick relates to the main idea because it shows that when the she is interviewing the teacher she figures out she can do it and becomes confident. 19.? Help please.

**English II**

That day I was so worried that I

**chemistry**

If we have a concentration of H+ at 5 x 10-2 mol/L, what is the pH value? A. -1.30 B. 0 C. 1.3 D. 2.6

**Math**

How would you solve 4[7^(x-2)] = 8

**Chemistry**

118.2

**English**

Help please!!!

**English**

What does this quote mean? “Stars got tangled in her hair whenever she played in the sky.”

**science**

I think the answer is D but it's a competitive relationship, so I am stuck.

**Physics**

two hundred fifty grams of iron is heated from 27 degree Celsius to 300 degree Celsius . how much ice can be melted and raised to a temperature of 27 degree Celsius by hot iron?

**Physics**

An electric heater warms a large 0 degree Celsius block of ice at the rate of 200J/s . calculate the mass of the ice that melts in 10 minutes

**algebra**

A car travels down the highway at speeds between 50 miles per hour and 65 miles per hour. If the car travels for 4 hours, write an expression that represents the distance, d, the car has travelled.

**Chemistry**

Oh, thank you!

**Chemistry**

What is the electro-negativity of NO ? (Nitric oxide)

**Geometry**

Use the Pythagorean Theorem to find the height / bases in each triangle. Then apply formula for area - b(h)/2

**Pre-Calculus**

C(x) = 14 ( 150) + 6 (230-150) + 3x

**Math**

A spherical balloon is being inflated. Estimate the rate at which its surface area is changing with respect to the radius when the radius measures 20 cm.

**Math**

How do you factor 2a^2 - 1 ?

**Math**

APPLE + ORANGE