# Posts by Jack

Total # Posts: 1,821

Algebra-Knights
I went to the website....maybe I am doing something wrong but it won't bring up the graph - I put in the equation on y1

Algebra
Thanks

Algebra
it shows y= and then the square root goes over all of 2x+6

Algebra
Which graph matches the function: y= square root 2x + 6 How would this look on a graph? Thank You.

Thank you for all your help...I appreciate it.

So which is it?

Solve for B: square root b^4/25 = 4. A.) 2 B.) +/- 5 square root 2 C.) 3 D.) +/- 2 square root 5 I don't know how to do these so please show your work. Thank you.

A right triangle’s legs are 3 and 4 meters long. What is the measure of the angle adjacent to the 4-meter leg to the nearest tenth of a degree? A.) 35.9° B.) 36° *C.) 36.9° d.) 37.5° Thank You.

Algebra
solve for x: square root 2x+3 = square root 6x - 1. A.) 1 B.) 2 C.) 3 D.) square root 6 I don't know how to do these so will you please show your work. Thsnk You.

chem
pls help

chem
For the indicated atom in each of the following molecules or ions, give the number and arrangement of the electron pairs around that atom. (a) As in AsO43- number: arrangement: linear bent trigonal planar square planar tetrahedral (b) Se in SeO42- number: arrangement: linear ...

English
Thnak you.

English
choose from For example or therefore 1. Most listeners don't simply absord your message of thier own called feedback._______, when you phone a friend to say you'll be late, you may hear,"Hey, you really need to get here on time!" That is feedback. I am a bit ...

chem
could u check if im right: a. As in AsO43- for number its 3 arrangement is tetrahedral b. Se in SeO42- # is 2 arrangement is tetrahedral c. S in H2S # is 1 arrangement is linear

chem
For the indicated atom in each of the following molecules or ions, give the number and arrangement of the electron pairs around that atom. (a) As in AsO43- number: arrangement: linear bent trigonal planar square planar tetrahedral (b) Se in SeO42- number: arrangement: linear ...

Algebra
Please help me. Please show work. What are the domain and range of the function y=2 square root 3x + 4-5? *A.) X >/= -4/3; Y >/=-5 B.) X >/= 4/3; Y >/= 5 C.) X </= -4/3; Y </= -5 D.) X </= 4/3; Y </= 5 Thank You so much.

english
Thank You.

english
1. Which of the style guides is most focused on professionals who are writing articles for publication? A.) MLA B.) APA *C.)Chicago Thanks.

chemistry
Calculate the concentrations of all species in a 0.690 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8.

stats
0.45

math
thank you mary

math
a square kitchen floor can be exactly covered withe square tiles that are either 9 inches or 15 inches on a side. what is the minimym area in square feet that the kitchen can have? how many of each size tile would be needed to cover the minimum size floor?

Geometry
A six foot person is walking away from an 18 foot pole. Express the distance between the pole and the person in terms of the length of the persons shadow.

math
A manager of an electronics store takes a random sample of large shipments of circuit boards to determine if he will accept the delivery. he randomly samples 20 boards from a shipment and will reject the delivery if more than 1 circuit board is defective. if the manufacturer ...

Chemistry
Hess's law _____. A.) makes it possible to calculate H for complicated chemical reactions B.) states that when you reverse a chemical equation, the sign of H does not change C.) determines the way a calorimeter works D.) describes the vaporization of solids Please help - I...

Chemistry
1. Hess's law _____. A.) makes it possible to calculate H for complicated chemical reactions B.) states that when you reverse a chemical equation, the sign of H does not change C.) determines the way a calorimeter works D.) describes the vaporization of solids Please help...

finance
if you want to have \$7000 in 10 years, how much money must you put in a savings account today? Assume the account pays 4% compounded daily.

Algebra 1

Algebra 1
A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 feet and the length of the ladder is one foot more than twice the distance from the wall. Find the distance from the wall to the bottom of the ladder. (Hint: Use the Pythagorean ...

physics
F is 208.42N normal is 125.14 N

23. Write the correct verb form in the blank: yo/encontrar. yo ___________ (2 points) 24. Write the correct verb form in the blank: ella/cerrar. ella ___________ (2 points) 25. Write the correct verb form in the blank: nosotros/querer. nosotros ___________ (2 points) 26. Write...

I don't know how to do these or I would have given answers or at least a good guess. Thanks.

23. Write the correct verb form in the blank: yo/encontrar. yo ___________ (2 points) 24. Write the correct verb form in the blank: ella/cerrar. ella ___________ (2 points) 25. Write the correct verb form in the blank: nosotros/querer. nosotros ___________ (2 points) 26. Write...

19. Your hermano mayor is A.) younger than you. B.) older than you. *C.) more powerful than you. D.) smarter than you. 20. Your hermana menor is *A.) younger than you. B.) older than you. C.) more powerful than you. D.) smarter than you. Thank You

Thank You. What do the numbered ones say?

I have no idea what the answers are to these. Thank You For questions 10-14, match the family members: A. el hijo de mis tíos B. la hija de mis padre C. la madre de mi padre D. la hermana de mi padre E. la esposa de mi padre 10. mi madre 11. mi tía 12. mi abuela ...

math
Idk

Spanish please translate from spanish to english
1.) ¿Cuál es la prima mayor? 2.) ¿Cuál es la prima menor? 3.) Es el doce de mayo. Es el 20 de agosto. Es el primero de diciembre. Es el uno de diciembre. 4.) Tiene doce años. Tienes doce años. Tengo doce años. Thank You so much

Please translate from spanish to english
La familia Gutierrez tiene dos hijos. Ramón tiene 15 años. Es el hijo mayor. Su cumpleaños es el veinte de agosto. Rogelio tiene 13 años. Es el hijo menor. El cumpleaños de Rogelio es el 1 de diciembre. Ramón y Rogelio tienen dos ...

Spanish
are my answers correct then or are you saying #4 is wrong?

Spanish
Thank You

Math help
They each brought 7 pets. hope this helps

Maths
A bouncy ball bounces 16m on its first bounce and then 8m on the second bounce. Each time it bounces the height halves. How high will the ball bounce on the 10th bounce?

Calculus
lim 1/(1+h)^2-1/h h->0 I have 1 as my final answer and was wondering if i was correct

Calculus
lim e^(1+h)-e/h h->0

physics
The security alarm on a parked car goes off and produces a frequency of 1010 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 83 Hz. At what speed are you driving?

science
The XYZ Company makes widgets and sells to a market that is just about to expand after a period of stability. As the year starts, the widgets are manufactured at a cost of \$0.75 and sold at a market price of \$1.00. In addition, the firm has 1,000 widgets in finished goods ...

chemistry
I got a very close answer, I just needed help with the steps, so thank you my friend.

chemistry
How much ice is required to cool a 15.0oz drink from 71 F to 34 F, if the heat capacity of the drink is 4.18 J/g*C ? (Assume that the heat transfer is 100% efficient.)

Science
Please compare and contrast the electrochemical events involved in the initiation and propagation of an action potential with the electrochemical events involved with the initiation of muscle contraction in skeletal muscle. Be sure to describe the electrochemical changes in ...

Calculus 2
A circular plate of radius r feet is submerged vertically in a tank of fluid that weighs w pounds per cubic foot. The center of the circle is k(k>r)feet below the surface of the fluid. Show that the fluid force on the surface of the plate is F=wk(πr^2). How to prove ...

coordinate algebra
Jon is flying an airplane.He is currently 3,5000 feet in the air and he is ascending at a rate of 500 feet per minute.How many minutes it will take him to reach a height of 9,000 feet

coordinate algebra
Jon is flying an airplane.He is currently 3,5000 feet in the air and he is ascending at a rate of 500 feet per minute.How many minutes it will take him to reach a height of 9,000 feet

Math
I am stuck on several probability questions. A spinner that has 15 equal sized sections numbered 1 to 15 is spun twice. What is the probability the spinner lands on an odd number and then on an even number? A. 56/225 B. 169/225 C. 1/15 D. 21/225 I chose A. 56/225 because 8/15 ...

chemistry
If 1.00 mole of BrCl is introduced into a 500.0 ml flask, what are the concentrations of Br2, Cl2 and BrCl at equailbrium

waiting times for 64 randomly selected walk-in customers and determined that their mean waiting time was 15 minutes. Assume that the population standard deviation is 4 minutes. The 90% confidence interval for the population mean of waiting times is

geometry
prove KLM=KNM.give reasons

statistics
A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of milligrams and a standard deviation of milligrams. What is the probability that randomly selected light cigarettes from this company will have a total combined nicotine content...

statistics
A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of milligrams and a standard deviation of milligrams. What is the probability that randomly selected light cigarettes from this company will have a total combined nicotine content...

Physics
0.55 cubic meters

Chemistry
Never mind! I got it! :)

Chemistry
Lead(II) oxide from an ore can be reduced to elemental lead by heating in a furnace with carbon. PbO(s) + C(s)= Pb(l) + CO(g) Calculate the expected yield of lead if 90.0 kg of lead oxide is heated with 90.0 kg of carbon.

Chemistry
An experiment that led to the formation of the new field of organic chemistry involved the synthesis of urea, CN2H4O, by the controlled reaction of ammonia and carbon dioxide. 2 NH3(g) + CO2(g)= CN2H4O(s) + H2O(l) What is the theoretical yield of urea when 100. g of ammonia is...

Chemistry
It is calculated that 0.0191 moles of CO2 are expected from a reaction at 25 degrees C and 1 atm. What volume of CO2 does this represent in cm3? (R = 0.0821 L atm / K / mol)

Maths - HELP PLZ
HOW CAN I SOLVE THE INEQUALITY GRAPHICALLY 3X^2 + 10X - 8 > 0 Any help would be appreciated

ALGEBRAIC METHOD
HOW CAN I SOLVE THE INEQUALITY GRAPHICALLY 3X^2 + 10X - 8 > 0

Physics
A long jumper leaves the ground at an angle of 24.3◦ to the horizontal and at a speed of 10.6 m/s. How far does he jump?

Write a MIPS assembly language program for the following for loop: Pseudocode: int x; # for(x=10; x>0; x--){ # printf("x=%d", 4x); #} In the program use the slt or slti instruction and sll

Write a MIPS assembly language program that will cover the following steps: Prompt the user to enter a first integer named i1 Prompt the user to enter a second integer named i2 Compute i1+i2-200 Print the value of the result Repeat The program should enforce the rule that the ...

biology
Identify the blood types arising from each of the progenitor cell types: a)Myeloid progenitor cells b)Lymphoid progenitor cells No one has answered this question yet.

Identify the blood types arising from each of the progenitor cell types: a)myeloid progenitor cells b)lymphoid progenitor cells

yep i got a full 100 with these answers

chemistry
when Zn0 becames Zn++, where do the 2 electrons that are lost come from?

Organic Chemistry
Why does crotyl chloride react faster than 1-chlorobutane in ethanol, since both are primary alkyl halides?

physics
You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 97-kg cylinder of radius R that has a maximum angular speed of 330 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of distance. Find the smallest ...

Chemistry
the density of H2 gas in a rigid container is 0.117 g/L at 55 C. what is the pressure of hydrogen in the flask if it is heated to 125 C?

Precal
find the exact value of sec theta for angle theta in standard position if the point -3,2 lies on its terminal side

Logic
Draw a flowchart for a program that reads a date in an 8-digit sequence (month, day, year) and determines if the date is a valid date. ignore leap year. Assume Feb has 28 days, and establish a table of days in a month so that you can access the appropriate month to determine ...

chemistry
A 15.0ml sample of NaCL solution has a mass of 15.78g.after the NaCL solution is evaporated to dryness, the dry salt residue has a mass of 3.26g. calculate the following concentrations for the %(m/m), % (m/v), molarity (M)

Cryptology 101
DES and AES are both “turn the handle” algorithms, in that they use repetition of some number of very similar cycles. What are the advantages to implementer, users, cryptanalysts of this approach?

statistics
105.88

Math
Julie is solving the equation x2 + 6x + 9 = 0 and notices that the discriminant b2 - 4ac has a value of 0. This tells her that the equation has

chemistry
how are the ionization energies evidence for the structure of the atom especially the electron configurations for atoms ?

Chemistry
144 g s8

newton's law
thanks but my instrutor don't want me to use energy to solve the problem since we havnt learn it yet, can you do it using newton's law?

newton's law
A block of mass M is projected up a frictionless inclined plane with a speed VO. The angle of incline is given as theta. a. How far up the plane does it go? b. How much time does it take to get there? I was stuck after Fg(cos(theta+90)= Ma_x gcos(90+theta)/M = a_x can someone ...

newton's law
Find the acceleration and tension in an Atwood's machine. Two different masses connected by a string over a pulley which is at rest.

Math.. how to get linear function
The total length y is a linear function of the tail length x with great accuracy. The domain is the interval from 30mm to 200mm, and the range is the interval from 200mm to 1400 mm. The following two points are given: X0= 60mm, Y0= 455mm, X1=140mm, Y1= 1050mm. Find the ...

two blocks of masses m1 and m2 (m1>m2) are placed on a frictionless table in contact with each other. A horizontal force of magnitude F is applied to the block of mass m1. if P is the magnitude of the contact force between the blocks, what are the net forces acting on m1 ...

Physics
.224

Calculus
Thank you

Calculus
Given F(2)=1,F'(2)=5,F(4)=3,F'(4)=7 and G(4)=2,G'(4)=6,G(3)=4,G'(3)=8, find: a)H(4)if H(x)= F(G(x)) b)H'(4)if H(x)= F(G(x)) c)H(4)if H(x)= G(F(x)) d)H'(4)if H(x)= G(F(x)) e)H'4 if H(x)= F(x)/G(x) Please Help!

math
sorry buddy im stuck too.

Calculus
Thank you

Calculus
Find the derivative of y=15x^7+7^x+22

Math
I had that as well, but I wasn't sure if you could break it down that way. I guess we will find out

Math
How do you make this true Using 48, 6, 2, and 5 =18 by using (+, -, x, or /)

Production & Operations Mgmt in Business
If someone could help me, I am truly desperate here. I am struggle with this problem. – Simple Linear Regression Applications Interpretation and Use of Computer Output (Results) (1) The management of an international hotel chain is in the process of evaluating the ...

AP Chemistry
A 34.05 gram liquid sample of an unstable compound is deposited in a metal piston assembly that has a cylinder with a diameter of 20.0 cm. After the sample is added, the piston is placed in contact with the liquid and the piston vent is closed. This process removes all ...

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