Raul

This page lists questions and answers that were posted by visitors named Raul.

Questions

The following questions were asked by visitors named Raul.

solve the equation: 4cos2*theta + 3cos*theta + 3 = 0 for values between 0 and 180 degrees If that is cosine squared in the first term, you have a quadratic equation. Normally cosine squared would be written in ASCII as cos^2 Theta.

What problems dogged the early settlements of the Chesapeake region?

Did the differing circumstances of Maryland and Virginia's founding affect the course of their respective development? If so, how?

write a 350-700 word response describing how Socrates’, Plato’s, and Aristotle’s philosophies relate to each other

A current I = 16 A is directed along the positive x-axis and perpendicular to a magnetic field. A magnetic force per unit length of 0.15 N/m acts on the conductor in the negative y-direction. Calculate the magnitude and direction of the magnetic field in...

A steam pipe is 75 mm external diameter and is 80 m long. It conveys steam at a rate of 1000 kg/h at a pressure of 2 Mpa. The steam enters the pipe with a dryness fraction of 0.98 and is to leave the pipe with a dryness of not less than 0.96. The pipe mus...

which is more concentrated a 1 liter solution containing 30 g of NaCl or a 1 liter solution containing 30g of KCl

Describe in your own words how to solve a linear equation or inequality

wats the areas of a rectangle... base of : 5m high of: (4a+b)m

The average cab ride cost per mile(x) is given by f(x)=2x+3.50, where x is miles and f(x) is money. A. Find the cost of a 5 mile ride. B. Find the cost of a 3/4 mile ride. C. How many miles can you go in $50?

Hi another question I have please. Find the midpoint of F A B? A(6,10) B(-20,14)

what minimum mass of copper ii nitrate must be added to 70 ml of a .0594 M phosphate solution in order to completely precipitate all the phosphate as solid copper ii phosphate. 2PO4^-3+3Cu(NO3)2-->Cu3(PO4)2+6NO3^-1 I can not come up with the correct answe...

The position of a particle moving on a horizontal line is given by s(t)=2t^3-15t^2+24t-5, where s is measured in feet and t in seconds. a: What is the initial position of the particle? b: What is the average velocity of the particle on the interval [0,2]?...

At what value of x does the graph of y=9x^(1/3)+x^2 have a point of inflection?

At constant volume the heat of combustion of a particular compound is -3378.0 kj/mol.When 1.563 g of this compound ( molar mass of 126.88 g/mol )was burned temp rose 6.991 C. What's the heat capacity of the calorimeter(calorimeter is constant)?

2M +6HCl–>2MCl+3H2 Delta H= -638.0 Kj HClg—>HCl aq= Delta H -74.8 Kj H2+Cl2–>2HCl Delta H -1845.0 Kj MCl3s–> MCl3 aq Delta H -249.0 Kj Use the information above to determine the enthalpy of the following reaction. 2M +3Cl2–>2MCl3 Delta H =???

Familling new carpet and wants to know how much carpert they need , but they olso know that carpet is sold by the square yard. 23feetx9feetx6feet x 3feetx10 feetx19feet

A pile of index cards has a mixture of white, pink, yellow, red, and blue cards. Some cards are lined, and some are unlined. The total number of cards is 150. 2/5 of the cards are blue, 10 cards are white, and 10 cards are red. Half of the remaining cards...

A parking lot near the sports field holds a total of 52 vehicles. There are 42 cars parked there now. Half of these cars are red, 10 are blue, and the rest are silver. What fraction of the cars are silver?

Justin took photographs during a trip to the mountains. He used one roll of color film and one roll of black-and-white film. He took 1/3 of the pictures in color during a picnic with his family. If he took 36 pictures in all, how many color pictures did h...

Rogelio has 3 one-dollar bills, 5 quarters, 4 dimes, 2 nickels, and 9 pennies. What fraction of the coins are quarters?

Surface area of each solid .round to THE nearest tenth if necesaria. 6cm 5.2cm 7cm 6c

A 250 g sample of water with an initial temperature of 98.8 c loses 7,500 joules of heat. What is the final temperature of the water ?

Write two different numbers that when rounded to the nearest tenth will give you 18.3

What are the particular hardware elements that have a direct memory access device?

When you are traveling in your car at highway speed, a bug is suddenly splatters into your windshield. A) Who experiences the larger force? B) Who experiences the larger acceleration?

Answers

The following answers were posted by visitors named Raul.

what is the tone in A Voice By Pat Mora

13.5 mols C X(1 m C3H8/ 3m C)=4.5 m c3h8 4.5 miles c3h8 x 11 atoms in c3h8= 49.5 moles of atoms

At constant volume the heat of combustion of a particular compound is -3378.0 kj/mol.When 1.563 g of this compound ( molar mass of 126.88 g/mol )was burned temp rose 6.991 C. What's the heat capacity of the calorimeter(calorimeter is constant)? Sorry the...

kj/C not cal/g that's another question I'm working on

the hundredths grid is divided into 100 pieces. Now, you shade a whole grid completely. Then , you shade in 65 pieces of another grid to show 1.65.

the hundredths grid is divided into 100 pieces. Now, you shade a whole grid completely. Then , you shade in 65 pieces of another grid to show 1.65. Then, show another grid with 98 pieces shaded in. Don't forget to put in the subtraction sign!! And now you...

Sorry for 2 messages. I accidently hit the send button while i was typing!XD

Steve, Thank you. THat is part of the question that is not needed to solve the problem.

I mean the 2/3 of the musicians are girls.

$5.12 plus 55%= $7.94 price per square yard.(rounded up) 5.12 x .55= 2.816 2.816 + 5.12= 7.94

$273.49 x .35= 95.7215 273.49 + 95.7215=$369.21

:) lol. Thanks again

Thank you Reed and Nour

You have to multiply the 20 min by the number of student in the class which are 25. Then take the minutes and devide them by the number of minutes in an hour. 20 x 25 = 500 minutes 500/60 = 8.3333 (round down) 8 hrs

8 x .50 =4 + 8= $12 12 x .20 =2.4 -12= $9.60 9.60 x .15 = 1.44 + 9.60= $11.04 11.04 x .60 = 6.62 -11.04= $4.42 final price.

36 / 1.3 =27.69(round up) 28 color pictures

20,00 will be the answer to the question

I also go to connexus

The following system is at equilibrium: A(s)+4B(g)⇌C(g) Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction. (Add more A)(Remove some A)(Double the volumen)(Halv...

fv= (1000*.09)+1000= 1090, PV=-1000, n=6, pmt= 140 cpt i/y= 15.027%

Q1. FV= (1000*.09)+1000= 1090, PV= -1000, n=6, pmt= 140. Cpt I/y= 15.027%. They should be happy because they were making a less (14%) than the 15.027%. Q3. The current yeild is $80 (the coupon) divided by $901.40 (The current market value). Sorry my calcu...

I need help please I just got homework and I don't understand are all my problems 7/10 2/5 2/3 3/9 8/22 1/2 16/24 12/29 15/45 I have more but I think its a waste of time for you

This might be a little late but the answers are 1. A 2. C 3. B

In 5th in Mrs.Veronacas class.

A person asked Does this Trinity go to harvest Church for youth group? and they awnserd yes that what