Posts by Sam

Total # Posts: 5,207

physiology
how many grams of glucose (180grams/mole) to make a 13% glucose solution with a final volume of 600 milliters.

History World
Could this be in Russia defaults on its debt? Before the revolution, czarist Russia regularly sold bonds abroad to finance the country's economic development. The loans helped finance 40,000 miles of railroad, including the Trans-Siberian, as well as ports, factories and ...

History World
France developed a political alliance with Russia Austria- Hungary demanded equal support from France Germany canceled its alliance with France.

History World
Which of the following results from France giving Russia a loan to Build the Trans-Siberian railway? I think it's Russia defaults on its debt making an enemy of France.Don't I can't find anything. Help please

urgent math help plz !!
The angle ? lies in Quadrant II . sin?=34 What is cos? ? ?7?/4 7?/4 3/4 ?3/4 <my answer

Earth Science
Slide 1 This is a cumulus cloud. Can you find four things on the word list that you can use to describe this cloud. Cumulus clouds consists of puffy tops, no rain expected, 3,000 ft. high, and flat bottoms. Slide 2 This is an example of towering cumulus clouds. Write down as ...

Math
The functions of f(x), g(x), and h(x) are defined below: f(x) = -2x g(x) = 2x + 5 h(x) = x^2 + 3x - 10 Calculate the indicated function values. 1. f(a+b) 2. f(g(x))

fluid
1. A vertical seawater lock is 4m wide and 2m high. The water level is 2 m above the base of the lock on one side, there being no water on the other side. The mass of the lock is 2.5 t and the coefficient of friction between the lock and the slides is 0.25. Determine the ...

Math question
A cone-shaped container has a height of 9 in. and diameter of 2 in. It is filled with a liquid that is worth $2 per cubic inch. What is the total value of the liquid in the container? Use 3.14 for ? . Enter your answer in the box. I think it's 18.84 can someone check my work?

Language Arts
Ok, thanks for checking...appreciate it. (=

Language Arts
What is the meter of line 6? A wildcat roaring past steep banks A)stressed, unstressed, stressed, unstressed, stressed, unstressed, stressed, unstressed B)unstressed, stressed, unstressed, stressed, unstressed, stressed, unstressed, stressed*** C)unstressed, unstressed, ...

science
does condensation or evaporation occur on a cold can of juice is put on the table on a hot day

Chem
We will calculate the amount of acid to use in each titration. Assume that you are using 0.0512 M NaOH(aq). A good volume of NaOH(aq) to use per titration is 15 mL. From this molarity and volume, the moles of NaOH can be calculated. Since the unknown acid is monoprotic, this ...

mATH
YOU DEPOSIT $520.00 IN AN ACCOUNT WITH 4% INTEREST COMPOUNDED MONTHLY WHAT IS THE BALANCE IN THE ACCOUNT AFTER 5 YEARS 520 X 1 + 0.04/12^60 IS THIS RIGHT WAY TO DO THIS

Math
Does the function represent exponential growth or exponential decay. Identify the growth or decay factor. y=9 x (1/2) I'm not sure how to make the chart to show the decay.

Math
the speed of sound is approximately 1.2 x 10^3km/h how long does it take for sound to travel 7.2 x 10^2km. answer in minutes

Biochemistry
Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NaOH. a) What mass of glycine is required? The appropriate pKa of glycine is 9.6. b) What volume of 1.00 M NaOH is required? The appropriate pKa of glycine is 9.6.

Math
I have worked and reworked this problem, but I cannot seem to figure it out. Can anyone help? Jeffries & Sons is borrowing $95,000 for four years at an APR of 7.05 percent. The principal is to be repaid in equal annual payments over the life of the loan with interest paid ...

Finance
Solved! :)

science
A stone is dropped from a balloon going up with a uniform velocity of 5.0 m/s. If the balloon was 50 m high when the stone was dropped, find its height (in meters) when the stone hits the ground. Take g = 10 m/s2 (A) 50 (B) 58 (C) 68 (D) 78.5

Maths
A quadrilateral is called cyclic if its corners lie on the circumference of a circle. An example is shown below left: the circle has radius 5 The area A of the quadrilateral for different x values is plotted on the right. It can be calculated that this curve has derivative: dA...

algebra
A vat contains 8080 gallons of a fruit juice mixture that is 30%30% orange juice. How many gallons of the mixture should be drained and replaced with pure orange juice to make the mixture 80%80% orange juice? Round your answer to two decimal places, if necessary.

English
Gerbner is an author who wrote the book : "society storyteller"

English
identify one of Gerbner's main arguments,and then come up with a TV show that could serve as an example for that point

English
what is Gerbner's thesis statement?

psych
Identify each of the following consequences either positive reinforcement (PR), negative reinforcement (NR), negative punishment (NP) or positive punishment (PUN). NP 1. A teacher meeting with a parent makes that parent feel less powerful by having her sit on small, ...

psych
identify if it is Fixed Ratio (FR), Variable Ratio (VR) Fixed Interval (FI) Variable Interval (VI) VR 1. Getting paid for every widget you put on a machine in a factory VI 2. Pop (surprise) quizzes VR 3. Slot machines at Foxwoods casino FI 4. Getting to play computer games ...

Maths
A FARMER SPENDS $1000 AND BUYS 100 ANIMALS. THE PIGS COSTS $100 EACH, THE GOATS $30 AND THE CHICKS $5. THE FARMER BUYS AT LEAST ONE OF EACH ANIMAL, WHAT DOES HE BUY?

Precalculus
The roots of \[z^7 = -\frac{1}{\sqrt{2}} - \frac{i}{\sqrt{2}}\]are $\text{cis } \theta_1$, $\text{cis } \theta_2$, $\dots$, $\text{cis } \theta_7$, where $0^\circ \le \theta_k < 360^\circ$ for all $1 \le k \le 7$. Find $\theta_1 + \theta_2 + \dots + \theta_7$. Give your ...

Precalculus
The roots of \[z^7 = -\frac{1}{\sqrt{2}} - \frac{i}{\sqrt{2}}\]are $\text{cis } \theta_1$, $\text{cis } \theta_2$, $\dots$, $\text{cis } \theta_7$, where $0^\circ \le \theta_k < 360^\circ$ for all $1 \le k \le 7$. Find $\theta_1 + \theta_2 + \dots + \theta_7$. Give your ...

Precalculus
What is the smallest positive integer $n$ such that all the roots of $z^4 + z^2 + 1 = 0$ are $n^{\text{th}}$ roots of unity?

Math
The Statue of Liberty is 305 feet tall. What scale would be used to make a model 20 inches high?

Math
Thanks so much

Math
If 4.5 inches on a map convers 270 miles, what is the scale of inches to miles?

Math
chris cuts boards that are 2/3 feet long. He has a 7/9 foot long board of wood. How many yards can he cut?

Physics
Two point charges each have a value of 3 ?C and are 10 cm apart. What is the electric field at the midpoint between the two charges?

Precalculus
Yeah, that is the real solution. I also need to find the complex solution as well.

Precalculus
The question latex was messed up, it is: Find all $x$ such that \[x^6 = (x+1)^6.\]

Precalculus
Find all xx such that [x6x6 = (x+1)6(x+1)6]. So far, I have found the real solution x= -1212, and the complex solution x = -?1????3?13. Are there more, and if so what/how would be the most efficient find all the solutions to this problem? I am struggling to find the rest of ...

Math
What is the value of x if 36x=4 ?

Math
36x=4

Precalculus
What are all the complex and real solutions for x? Where: (x+1)^6 = x^6 and x is complex? The real solution is -1/2 and, the only other solution I could find was x = -(-1)^(1/3)

Physical Science
A step-up transformer has primary coil with 15 turns. How many turns would be required in the secondary coil to increase the voltage from 60 v to 160 v? 15 x=160/80 x=80/15 x=?

Math
Convert $e^{-\pi i}$ to rectangular form. Not sure how to start this problem, should I use Euler's formula? Can anyone help provide the steps please? Thanks

IPC
The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. How much will an object, which weighs 98 newtons on the surface of Earth, weigh on this point? The value of acceleration due to gravity on Earth is 9.8 ...

Math
Suppose that 32 feet of fencing is available to enclose a rectangular garden., one side of which will be against the side of a house. What dimensions of the garden will guarantee a maximum area?

Math
A shop owner blends three types of coffee,A,B,C.in the ratio 3:5:7 a) calculate the weight of each type of coffee in 45kg of three blended mixture. b) given that type A coffee cost $7 per kg, type B coffee costs $10 kg and type C coffee costs $13 per kg, calculate the cost per...

micro economics I
show the MRS for Cobb Douglass preference is ax2/bx1

maths
The line segment connecting A(-18,8) and B(-10,-8) is divided in the ratio 1:3 by point C. The coordinates of C are... Please show your working and thx for taking your time to answer this question.

Algebra 1
A square painting is surrounded by a frame. the outside edges of the frame are x inches in length, and the frame is 3 inches thick. What is the total area of the frame? A)-12x+36 B)12x-36 C)x^2+12x+36 D)x^2-12x-36 Is it C or D?

Algebra
Wait, nevermind my previous answer...is it B?

Algebra
What type of polynomial is this? 2 - 5x^3 + 6x A)not a polynomial B)cubic trinomial C)quadric trinomial D)fourth-degree trinomial Since the degree is 4, I think the answer is D. Is this correct?

Algebra 1
GCF*

Algebra 1
Find the GFC of the terms of the polynomial. 14z^5-70z^4+10z^3 Is the answer 14? I'm not really sure. Can someone please help?

Management
can you tell me the reason

Management
planning about the companys goal

Management
Is pressure of work barrier for planning

Management
Is pressure of work a barrier for planning?

algerbra
an object is projected upward at a rate of 96 feet per second. find the time when it is 144 feet above the ground

algebra
1/b(2b-10)=17 1/b*2b=2 1/b*10=10/b 2-10/b=17 -10/b=15 The answer is -2/3

pre-calculus
A rectangular box has a perimeter of 50 inches. Find the length and width of the box that would give the maximum area. Find the maximum possible area of the box.

pre-calculus
A rectangular box has a perimeter of 36 inches. Find the length and width of the box that would give the maximum area. e. l = 9, w = 9 f. l = 81, w = 9 g. l = 27, w = 9 h. l = 18, w = 18

pre-calculus
A rectangular box has a perimeter of 36 inches. Which of the following equations represents the area of the rectangular box in terms of its width, w? a. A = 36w - w2 b. A = 18w - w2 c. A = 36 - w2 d. A = 18 - w2

Chemistry
Thank you!

Chemistry
What is the concentration of Pb in mg/L , if you have 25 mg Pb in 5kg of seawater? (note: density of seawater is 1.025 kg/L)

Chemistry
Using the fact that fresh water has a density of 1000 kg/m3 , show that 5ppm Pb = 5 mg/L Pb .

precalculus
convert r sin? = 2 to rectangular form

pre calculus
what is the distance between the pole and the directrix of r = 4/-2-6sintheta

precalculus
Find the eccentricity of the function r = 4/-2-6sintheta

LA
How is Barrio Boy characteristic of nonfiction and "A Day's Wait" characteristic of fiction? Ernesto in Barrio Boy is a believable character, while the boy in "A Day's Wait" ...

LA Help!
we need help coming up with an idea.

Language Arts
Your answers are correct!

English
How do the themes like the will to live, the importance of storytelling, and the nature of religious belief help drive the plot forward? I don't really know how to answer this.

Math
Elena has 15 more dimes than nickels. If she has $2.55, how many nickels does she have?

math
(x+4)(x-3) x=-4 x=3

Spanish
Ok, thank you. (=

Spanish
Thanks! Can you answer another question? What is the difference between a plaza in a Spanish speaking country and one in Los Estados Unidos? A)in Los Estados Unidos, a plaza does not serve a social purpose*** B)in Los Estados Unidos, only small towns have plazas C)in Los ...

Spanish
**Image of girls at a cafe.** Donde estan las chicas? A)en el cafe*** B)a la cafe C)en la cafe D)en al cafe Am I correct?

math
Water is being pumped at a rate of 100L/H. How long will it take to pump 550L

Spanish
Which of the following best describes what a movie theater in a small Honduras town might be like? a) it would host an international festival b) it would show one movie per week c) it would be on the outskirts of town d) it would only open on weekends*** Pls, help!

Spanish
Please help, I would really appreciate it!

Spanish
Which word best completes the following sentence? The standard variety of Spanish is considered _______. a. natural b. colorful c. easy*** d. neutral I'm not really sure about this one, someone pls help!?

Social Studies
Come on Janelle, you could have googled it

ALGEBRA
A baseball team has 13 players; how many possible batting orders can the coach make if there are 9 players in the batting lineup?Hello can you help with this problem i try different ways to solve it but it is not match with my answers A. 235,368 B. 1,235,520 C. 879,523 D. 514,...

math
can somebody check this problem thank you.

algebra
4b/2 + 3 = 11 + b i know the answer is b=8 but i want to know how

Spanish
Writeacher?

Spanish
Ok. #1 ser and #2 is estar?

Spanish
So it would be ser?

Spanish
Sorry, just saw your reply, ok. The verb is "is", therefore in Spanish that would be estar or ser?

Spanish
Also, Which verb would you use to explain that the movie is being shown in the theater? A)deber B)estar C)ser*** D)hacer Am I correct on this one?

Spanish
Which Spanish verb would you use to ask the following question? "What is your name?" A)estar B)ser C)hacer D)tener Is it D? I'm not sure, can someone pls help?

physics
thank you

physics
What is the direction and magnitude of the net force acting on the hot air balloon? It has an arrow up with 6300, an arrow down with 3200, an arrow to the right of 1350 and an arrow left with 745. Is this how to do it and if so, how do I convert the sin of theta into degrees. ...

physics
vf2-vi2 /2deltaX (0-48)2( (103 m/km)2 (1 h/3600 s)2/2(14.9m) -4.8x103m/s2 is what I had so far. It didn't save when I posted.

physics
During a crash, a race car driver decelerates from 48.0 m/s to 0 m/s in a distance of 14.9 m. If the drivers mass is 70.0 kg, what is the average force acting on the driver during the crash? This is what I have so far. Am I starting right?

Georgia State History
Thank you. That's very helpful...(=

Georgia State History
I have to write an essay about MLK Jr. and I need to have a speech he made in Georgia. Can someone please help me and give me any suggestion of speeches made by MLK Jr. in Georgia.

Maths
A length of timber is to be cut into 7 pieces using a hand saw. How many cuts will need to be made

phisics
a car starts from rest and is accelerated uniformly and the rest of 2m/s2 for 6seconds it then maintaining a constant speed for half a minutes.The brake are then applied and then vehicles unifomly restarted to rest in 5seconds.find maxmum speed in km/h and the total distance ...

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