Wednesday

April 23, 2014

April 23, 2014

Total # Posts: 455

**Math 9 algebra**

A mechanic charges $70 an hour plus the cost of parts to repair a vehicle. The parts cost $215 for the repair on Tamara's car. A) write an expression for the total cost, C, of repairing Tamara's car for any numbers of hours, n. B) use the expression you created in part...

**Calculus 1**

(a) What is the continuous percent growth rate for P=130e^0.07t , with time, t , in years? (b) Write this function in the form P=P0a^t. What is the annual percent growth rate? Round your answer to two decimal places. I tried it but now I'm just more confused. How do I do ...

**math**

Find a fraction that reduces to 3/4 when both the numerator and denominator are decreased by i, and reduces to 4/5 when both the numerator and denominator are each increased by 1. I know the answer is 7/9, but i dont know how to solve (i must use a system of equations).

**Chemistry**

6.326

**Math 9**

Thanks :)

**Math 9 **

use exponent rules to simplify. Write as a single power, dont need to find the value. [ (11/20)^4 x (11/20)^-8]^5 and (11/20)^-6 you cant leave an number to the power of a negative exponent. You have to change it like this ex : 2^-3 = 1/2^3 = 1/8

**algebra**

-A store sells 28 ounces of peanut butter for $2.24. The store also sells 32 ounces of teh same peanut butter for $2.40. Which is a better buy?

**World history**

12. The Delhi Sultanate ruler Radiyya first took power chiefly because A. she proved herself in battle. B. she wore men's clothes. C. she killed her brother. D. her father chose her as his successor. I chose c

**Spanish**

Ok can u Atleast check if it makes sense? I wanna pass

**Spanish**

I found it can i send a recording??

**Spanish**

R these correct??plz help En la 11. ___________ te llamé. De la oscuridad me llamaste. Reconocí tu 12. ___________. Reconociste la mia. “Vente para acá,” 13. ___________. Respondiste: “¿Dónde estás, papá? No te 14...

**Spanish**

😭 Thanks anyway:(

**Spanish**

No I listen to the cd and fill in the blanks

**Spanish**

Ok if I try fillin in the blancks then can u help

**Spanish **

Can someone plz fill in the blanks for me i can't find the cd and its due tomorrow??!!!!!!PLZZZZ En la 11.________ te llamé. De la oscuridad me llamaste. Reconocí tu 12.______. Reconociste la mia. "Vente para acá,"13.______. Respondiste: &quo...

**Spanish**

Thanks:)!!!!

**Spanish**

What's the correct way to say Then I was mistaken In Spanish?

**Spanish**

I meant :)

**Spanish**

It's alright:(

**Spanish**

Partido means party it was juego but thanks

**Spanish**

Nvr mind

**Spanish**

Which is he correct way to rite this sentence in Spanish We lost the game Perdimos el juego OR Perdimos el partido

**Spanish**

Bunch^^^

**Spanish**

Thanxz a buch:)!!!!

**Spanish**

And does la frente mean forehead?

**Spanish**

Ok:) thanks I Appreciate it!!!!!

**Spanish**

Can u correctly write these sentences in Spanish,plz? 1. I'm very proud of my son. 2. He can spell his name backward and forward. 3. What's his name? 4. How much does a new car cost in America? 5. You must be very rich. If tried already this is wat I got, plz double ch...

**Spanish**

Thanks☺🙏

**Spanish**

Ok thanks r they gonna post it here?

**Spanish**

Are they correct

**Spanish**

6.tengo 7.tenemos 8.sra 9.venimos 10.sale 11.vuelven

**Spanish**

Conjugate the following irregular verbs in the simple present tense (indicative) 6. Tener(to have) Yo __________ 7. Tener(to have) Nosotros ________ 8. Venir(to come) Tú _________ 9. Venir( to come) nosotros________ 10. Salir( to leave). él/ella_________ 11. Volv...

**Math**

y/9 = 4 2/3 . Solve for Y . PLEASE HELP!

**Math**

One foot is 12 inches so how many times does 12 go into 60 ? When you are done dividing times your sum . 12x the answer.

**math**

LW=9 2L+2W=30 that is for a rectangle. 2*L/9+2L=30 20L=270 L=13.5, W=13.5/9=you do it.

**Child day care**

12. Which of the following is a factor that's very important to high-quality child care, but not often covered in state licensing regulations? A. The group size B. A fire safety clearance C. The staff-to-child ratio D. An annual visit by a representative of the licensing a...

**Child day care**

Plz sum1 answer my question

**Child day care**

10. Which of the following accreditation organizations does not have its headquarters in the United States? A. NAEYC B. AMS C. AMI D. CWLA

**Physical Science- Help Please!**

Suppose that you are given a 100 gram sample of a radioactive substance with a half-life of 32 days. How many grams will be left after 192 days?

**science**

Motion along a straight line, such as an axis, In this case,its the general movement of any object without the rotational component. In inertial translational motion without rotation the object always keeps the same inertial attitude. Rotation and translation together provide ...

**Physics**

A 16 kg box slides across the floor with an initial velocity of +7.8 m/s. It comes to a stop after sliding +14.6 m. How much friction was present?

**Physics**

A race car has a mass of 714 kg. It accelerates uniformly from rest, and travels 55 m in 2.95 s. What is the acceleration of the car? And, what is the net force acting on the car?

**seventh grade math**

if 1/2 in. = 1/3 feet then how many feet is 27 inches please someone help me ................ its drawn to scale the 27 inches

**7th grade math**

15-(2n)=13 n=1

**Math**

crate #1 8cds crate #2 8cds crate #3 8cds crate #4 8cds crate #5 8cds crate #6 8cds 6 x 8 = 48

**chemistry characterization & analysis of aspirin**

write a balanced equation that describes an acid base reaction that would allow you to determine the moles of aspirin present in a sample

**math**

If sandy and Betty have 192 toys in all and Sandygive Betty 50 toys so know sandy has three times as much as betty

**Math**

Czarina is working part time at a pastry shop baking cupcakes. If she works for 30 hours in one week on the average, how many hours a day does she work?

**Math**

The following are the number of apples sold in a certain market: 96, 186, 59, 171, 62, 58, 176, 91, 183, 167, 62, and 51. How many apples should an extra store sell to have a mean of 120?

**PHYSICS**

Sorry theta of the incline is equal to 61.4 degrees

**PHYSICS**

An object with a mass of 14kg lies on a frictionless incline. A rope attached to the mass runs parallel to the incline and is connected to a wall at the top of the incline. If the rope is considered to be in static equilibrium what is the tension of the rope in newtons?

**child day care**

A. Staff vacations

**physics **

The punter on a football team tries to kick a football so that it stays in the air for a long "hang time." If the ball is kicked with an initial velocity of 25.2 m/s at an angle of 58.5° above the ground, what is the "hang time"?

**Math**

121 x 3/11 =

**Math**

If a number is added to its reciprocal, the sum is 13/6, find the number.

**algebra2 PLEASE**

what are three important thing for an evaluating and inequalities and abs. values please and thank you

**algebra**

f(x)= 1/x-2 Plug in 1 for x. I keep getting -1 but the book says the answer is 3. Please help. Thanks

**social studies**

Under the federal system of the Constitution, the States _____. c)retain much of their earlier authority but submit to the ultimate sovereignty of the national government d)have about as much authority as local governments do in unitary systems like Great Britain I NARROWED IT...

**chemistry**

3960 J of heat are added to a 27.6 g sample of iron at 25 ◦ C. What is the ﬁnal temperature of the iron? The speciﬁc heat of iron is 0.449 J/g · K. Answer in units of K

**Social studys **

Who was Harry Houdini

**Place value whole numbers**

The tens digit is three times the thousands digit.

**Math**

6y/y^2+y-72 divided by y^6/x-y

**Anatomy and Physiology**

If one solution is 1000 x as acidic as another, how many pH units would there be between the two?

**Science**

What is the volume of 19 grams of flourine gas at stp?

**College Physics**

A convergent lens forms a real image 2.41 times the size of the object. The distancebetween object and image is 62.6 cm.Find the distance of the focal point fromthe center of the lens.Answer in units of cm

**Physics!!! :)**

The escape speed of a particular planet with a radius of 7.500e+6 m is 14,500 m/s. What is the mass of the planet?

**Algebra-HELP!!!!**

When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

**algebra**

When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

**algebra**

When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

**math**

The legs of a right triangle are 3 and 4 units long. Find the lengths, to the nearest tenth, of the segments into which the bisector of the right angle divides the hypotenuse. (Hint: Draw a picture of the triangle, label one segment of the hypotenuse "x," and solve. ...

**finance**

Alicia Cooper makes sure to contribute ten percent of her monthly earnings to her 401(k) plan at work. Her 401(k) plan allows her to invest in several different types of mutual funds. Which suggestion for the obtaining money she needs for investing is she following?

**child day care**

I think it's A.

**Math**

If you deposit 1200.00 annually with 5% compounded interest, how many years will it take to get to a million dollars?

**chemistry**

what is the effects of NH3(aq) and HCl(aq) on the CuSO4 or NiCl2 solution

**maths**

find the perpendicular distance from the corner of the triangle to the opposite side if the side is 25cm long

**Math**

Tony lines up 5 baseballs. They are as long as his pillow. He adds 15 more balls. How long is the line?

**english**

what is the analogy for monkey if cardinal is to bird as monkey is to?

**pre-calculus**

Write the first expression in terms of the second if the terminal point determined by the t is in the given quadrant: sin t, cos t; quadrant 2

**algebra**

evaluate 15^(2log base15(9))

**physics**

A car traveling at 91.0 km/h approaches the turnoff for a restaurant 30.0 m ahead. If the driver slams on the brakes with an acceleration of -6.40 m/s^2, what will her stopping distance be?

**math**

5 rounds up, so 85 would round up to 90.

**Probability**

Let Y be a Normal RV with mean 7 and standard devi- ation 4. a. Find P (Y = 7). b. Find P (Y < 5). c. Find P (Y ≥ 10). d. Find P (Y < 0). e. Find E[Y].

**Probability**

Consider an RV X with the following density given parameters α and γ . f (x) = {(1/γ)e^(-(x-α)/γ) if x>α {0 if x ≤ α. a. Find E[X]. b. Find V[X]. c. If α = 4, γ = 2, ﬁnd P (X > 8). d. Find P (X < α + 3^...

**chemistry**

shoot, i wish i could remember the metal. she gave us the entire periodic information. how would i find the solution if I theoretically had the density?

**chemistry**

There is a ball with a mass of 1000 lbs. It's turned into wire with a diameter of 3.12 x 10^-1 How long is the wire? This is my crazy chemistry teacher's idea of a test...and I don't even think there's a solution. HELP ME

**math**

emilio can type 60 words in 1 minute marg can type half as many how many total words can emilio and marg type in 3 minutes

**math**

use the order of operations and the digit 4 four times to write problems that have the following answers 44 and 12

**physics**

A 30.0 g bullet strikes a 0.595 kg block attached to a fixed horizontal spring whose spring constant is 6.66 103 N/m and sets it into vibration with an amplitude of 21.8 cm. What was the speed of the bullet before impact if the two objects move together after impact? answer sh...

**physics**

When a 69 kg person climbs into a 1000 kg car, the car's springs compress vertically by 2.9 cm. What will be the frequency of vibration when the car hits a bump? Ignore damping. answer should be given in Hz.

**Algebra**

2/5x^4-23x^2+1/15 x^4+5x^2-5 Simplify each expression.

**pre-algebra**

If a and b are any real numbers, is the statement a x b = b x a always true? Why or why not?

**algebra**

If a and b are positive numbers, then is a -b is always??

**Pre Cal**

Let the line X-2Y=15 and the circle with equation X^2+Y^2=50 intersect at the points A and B. Algebraically find the coordinates of A and B using the information given.

**Geography**

I need an easy way to remember the followingg states: Montana, Wyoming, Colorado, New Mexico, Arizona, Utah, Idaho, Washington, Oregon, Nevada, and California. I have to know the capital and where it is located on the u.s. map .

**Chemistry**

How many calories are absorbed when 56.0 g of liquid water at 100C is vaporized to steam at 100C?

**MAth**

1. John’s loans for his business total $155,000. One of the loans is a SBA loan at 11% interest; the other loan is a Community Business Partner loan whose interest is 6.5% After one year the loans accumulated $12,325 in interest. What was the amount of each loan? I am not...

**physics**

1. An object traveling at a constant speed of 22m/s begins to experience a force of 15N in the opposite direction of its motion. (Hint given: Start by finding objects acceleration) a. How long will it take for the 8kg object to come to a complete stop once it experiences the f...

**Phyics**

If a 68kg object is being pulled across the hard floor with a horizontal force of 400N... a. What would the acceleration of the object be if it was on a frictionless floor? b. if there were friction, what would the force of friction be if it was pulled at a constant velocity? ...

**boooring chemistry!!:(**

Halogens are non-metals and if observed they form ionic bonds with metal because halogens have a high ionization energy to attract the metals. if you don't know what ionization energy is it means the energy need to to remove the electrons from an atom. Halogens also form c...

**physics**

How do you know that is net vertical force is equal to 0? Also what does Ffriction stand for?

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