Saturday

August 23, 2014

August 23, 2014

Total # Posts: 479

**algebra**

find the distance between (0,9)(-40,0) answer in simplest form id ont know where to start
*June 20, 2014*

**English**

Is Young Goodman Brown a dynamic character?
*June 13, 2014*

**Math**

Ms. Sue please help! A radio signal travels at 3.00 • 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54 • 10^7 meters? Show your work.
*June 10, 2014*

**Math**

Ms. Sue please help! 7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer. (1 point) –t + 4 dollars –t – 6 dollars 15t – 6 dollars 15t + 4 dollars 8. f 2 ∙ f 3 (1 point...
*June 10, 2014*

**Math**

7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer. (1 point) –t + 4 dollars –t – 6 dollars 15t – 6 dollars 15t + 4 dollars 8. f 2 ∙ f 3 (1 point) f 5 f 6 (2f)5 (2f)6 ...
*June 10, 2014*

**Science**

2. Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other? (1 point) The faster object has the same kinetic energy as the slower object. The faster object has less ...
*June 7, 2014*

**Science**

Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point) increasing the slope of the ramp reducing the friction between the wagon wheels reducing the length of the wagon handle increasing the friction between the wagon ...
*June 6, 2014*

**Science**

10. Metal cations are atoms that have a positive charge. What type of bond is a metal cation likely to form? (1 point) covalent bond double bond single bond ionic bond my answer is d
*June 4, 2014*

**Science **

Mrs. Sue please help! 1. Which is most likely to be part of an ionic bond? (1 point) an atom with no valence electrons an atom with one valence electron an atom with two valence electrons an atom with three valence electrons 2. To form an oxygen molecule (O2), two oxygen atoms...
*June 4, 2014*

**History**

some more questions if you don't mind? 10. Use this passage to answer the following question: The Cotton Gin Andrea Brecheen The cotton gin was one of the most amazing and tragic inventions of early America. The cotton gin is credited to the brilliant and creative American...
*June 1, 2014*

**History**

do you think 8 is d?
*June 1, 2014*

**History**

Ms. Sue please help! 3. Read the passage and answer the question that follows: Many slaves preferred not to escape their horrible lives on plantations because their families were often with them. Despite the fact that slaves had no rights, they often found ways to sabotage the...
*June 1, 2014*

**History**

Ms. Sue please help! 1. Which factor contributed most to the beginning of the women's rights movement in the United States during the mid-1800s? (5 points) a dramatic increase in women's participation in the workforce a shift in social attitudes brought on by increased...
*May 31, 2014*

**PE**

Ms. Sue please help. 1. Coupled with inactivity and poor eating habits, Cary usually feels very sluggish around 10:00 a.m., and his second period teacher has noticed he loses concentration during class. Which long-term health benefit could Cary improve with daily physical ...
*May 30, 2014*

**math**

yes, it is, a is the right answer.
*May 26, 2014*

**math**

so a is the answer?
*May 26, 2014*

**math**

Mrs. Sue please help! A true-false test has 12 questions. What is the probability of guessing the correct answers to all of the questions? (1 point) 1 over 4096 1 over 144 one over twenty four 1over14
*May 26, 2014*

**Math**

Never mind mrs. sue, I figured it out.
*May 26, 2014*

**Math**

Mrs. Sue please help me! 7. A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)? (1 point) seventy-seven over one hundred sixty-four nineteen over ...
*May 26, 2014*

**Math**

Top ten scores on a quiz in two classes are listed below Class A 100,100,100,90,95,85,92,98,92,88 class B 100,100,98,95,95,96,95,92,81,88 which statement is true concerning the data a. the mode is the same for both classes b. the range is the same for both classes c. the mean ...
*May 19, 2014*

**math**

sorry 3 green tiles 2/35 1/9 16/225 2/21 ?
*May 19, 2014*

**Algebra 2**

Find the period and the amplitude of the periodic function. y=-4 cos 8x
*May 19, 2014*

**Math**

In triangle RST, angle S is a right and csc R=13/12. What is tan T? 13/5 12/13 12/5 5/12
*May 19, 2014*

**Algebra 2**

What is the magnitude of the vector with an initial point (2,1) and terminal point (-13,9)? Answers-7.9,12.7,17.0,23.0
*May 19, 2014*

**Chemistry**

I'm having trouble trying to figure out how to setup and solve these problems: 1) 2,600.0 mL of air is at 20.0C. What is the volume at 60.0C? 2) A gas occupies 900.0 mL at a temperasture of 27.0C. What is the volume at 132.0C? 3) What change in volume results if 60.0 mL of...
*March 19, 2014*

**Chemistry**

Oxygen gas, from the decomposition of KClO3, was collected by water displacement. The pressure and temperature in the lab during the experiment were 451.0 torr and 20.0 C. What was the partial pressure of oxygen?
*March 18, 2014*

**Math**

Ms.Jackson decided to do a little shopping after school. She stopped at target to buy two new cake pans. One had a 4in diameter and the other had a 8in diameter. How much greater is the area of the larger pan?
*March 9, 2014*

**geography**

What are the major challenges facing the Balkan countries?
*January 29, 2014*

**math**

what is the value of a saving account after 12years when $12,000.00 is initially deposited and interest is earned at the rate of 4.5% compounded quarterly
*January 22, 2014*

**physics**

The difference in energy between allowed oscillator states in HBr molecules is 0.330 eV. What is the oscillation frequency of this molecule?
*November 28, 2013*

**physics**

A LiBr molecule oscillates with a frequency of 1.7×1013 Hz. (a) What is the difference in energy in eV between allowed oscillator states? (b) What is the approximate value of n for a state having an energy of 1.0 eV?
*November 28, 2013*

**physics**

(a) If the first-order maximum for pure-wavelength light falling on a double slit is at an angle of 10.0º, at what angle is the second-order maximum? (b) What is the angle of the first minimum? (c) What is the highest-order maximum possible here?
*November 28, 2013*

**Statistics**

Battery manufacturers compete on the basis of the amount of time their products last in cameras and toys. A manufacturer of alkaline batteries has observed that it's batteries last for an average of 26 hours when used in a toy racing car. The amount of time is normally ...
*November 20, 2013*

**Physics**

how to find the max height of a cat that is thrown at 9.8 m/s and is in the air for a total of 4 seconds.
*October 10, 2013*

**biology**

3.68kg=____________g
*September 9, 2013*

**calculus**

Some scientists believe that the average surface temperature of the world has been rising steadily. They have modeled the temperature by the linear function T = 0.02t + 8.75, where T is temperature in °C and t represents years since 1900. (a) What do the slope and T-...
*September 3, 2013*

**Chemistry**

Briefly outline a procedure you could use to determine the HC2H3O2 concentration in a vinegar sample. What would the pH be at the equivalence point of the titration? Briefly explain
*August 4, 2013*

**statistics**

MBA604 Statistics Assignment 1 Part 1 1) (5 pts) An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please ...
*July 12, 2013*

**statistics**

MBA604 Statistics Assignment 1 Part 1 1) (5 pts) An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please ...
*July 12, 2013*

**physic**

Fg=(GMeMsun)/r^2 Fg=((6.67*10^-11)(5.98*10^24)(1.99*10^30))/(1.5*10^11)^2 Fg=3.53*10^22
*July 11, 2013*

**algebra 1**

-3x+2y=2
*June 6, 2013*

**Statistics **

Scores on a mathematics examination appear to follow a normal distribution with mean of 65 and standard deviation of 15. The instructor wishes to give a grade of “C” to students scoring between the 60th and 70th percentiles on the exam. What score represents the 60th...
*May 26, 2013*

**Statistics Please Help**

One reason for standardizing random variables is to measure variables with: A. dissimilar means and similar standard deviations in like terms B. different means and standard deviations on a non-standard scale C. similar means and standard deviations on two scales D. different ...
*May 26, 2013*

**reading/math**

Hey Mrs.sue, can you answer this question:How does the author establish the setting in the first chapters of the watsons go to Birmingham?
*May 18, 2013*

**reading **

What kind of relationship does Kenny and Joetta have?
*May 18, 2013*

**reading**

How does the writer in the watsons go to Birmingham make the reader sympathize with Larry Dunn
*May 18, 2013*

**Multiplication**

3733750
*May 18, 2013*

**Math**

Ft is a periodic function with a period of 7 and an amplitude of 3. What is the period and amplitude of the function g(t)=-2f(1/3t)-5? Can someone show me what I need to do?
*May 17, 2013*

**Math**

Ft is a periodic function with a period of 7 and an amplitude of 3. What is the period and amplitude of the function g(t)=-2f(1/3t)-5? Can someone show me what I need to do?
*May 17, 2013*

**Chemistry**

Given that 1g of Phenacetin requires 82mL of hot water to dissolve, or 1310mL of cold water (TY= 3.92g): 1) How much water will you need to recrystallize the theoretical yield? 2) How much product will be lost because of recrystallization?
*May 5, 2013*

**math**

How many integers satisfy the inequality \left| \frac { 10(x+1) } {x^2 + 2x + 3 } \right| \geq 1?
*March 26, 2013*

**Geometry**

ABCD is a quadrilateral inscribed in a circle with AB = 1, BC = 3, CD = 4 and DA = 6. What is the value of \sec^2 \angle BAD?
*March 26, 2013*

**math**

You deposit $24000 in an account that pays 2.4% annual interest compounded continuously. What is the balance after 5 years?
*March 5, 2013*

**Solving Rational Equations**

4x/x-5=8/5-x
*February 27, 2013*

**structurlal design 2**

Thanks...
*February 24, 2013*

**structurlal design 2**

15. Sagging in floor joists is typically caused by A. oversized joists. B. undersized joists. C. improper nailing of sub-flooring. D. improper moisture content of the wood i think it's D.
*February 24, 2013*

**home inspection**

16. Brick ties in brick veneer walls allow for A. water drainage. B. air circulation. *C. expansion. D. inspection.
*February 24, 2013*

**home inspection**

11. Structural failure in a roof may be due to A. the presence of a vapor barrier between the attic floor and the ceiling below. B. too little span between supporting members. C. cuts made in rafters or trusses for addition of components such as stairways and fans. *D. use of ...
*February 24, 2013*

**maths**

Consider the polynomial f(x)=17x4+21x3+60x2+Ax+B. Suppose that for every root λ of f(x)=0, 1λ is also a root of f(x)=0. What is the value of A+B?
*February 6, 2013*

**Calculus**

P = P(0)e^(kt) (1/2) = e^(10k) ln(1/2) = 10k k = (1/10)ln(1/2) ---------------- 6 = 18e^((1/10)ln(1/2)t) (1/3) = e^((1/10)ln(1/2)t) t = 10[ln(1/3)/ln(1/2)] t = 10[-ln(3)/-ln(2)] t = 10[ln(3)/ln(2)]
*January 27, 2013*

**AP Chemistry**

a 6.33-Liter football is filled with air at 1.75 atm at 25.5 degrees Celcius. At the same temperature, the volume of the football is reduced to 2.35 Liters. What is the pressure of air in the ball?
*January 15, 2013*

**algebra**

write an equation in slope intercept form ha an x-intercept of 6 and y intercept of 3
*January 12, 2013*

**math**

solve the following exponential expression. e^x+e^-x=6
*January 4, 2013*

**math**

solve the equation log lower 6(x+9)-log lower 36 x =1 the 6 and 36 should be dropped down, then (x+9) and the x are higher. Please show work
*January 4, 2013*

**math**

use properties of logarithms to condense the loarithmic expression. write expression as a sinle logarithm whose coefficient is 1. where possible evaulate the expression. 1/8[3 In(x+5)-In x-In(x^2-4)] Please show work
*January 3, 2013*

**math**

write the expression as a sinle logarithm. express powers as factors. In (x/x-1)+In(x+1/x)-In(x^2-1) Please show work.
*January 3, 2013*

**math**

it is written as you have it written the first time. I couldn't make out the question. It made no sense to me.
*January 3, 2013*

**math**

log lower 4(x+2)=log lower 4 7. does this make sense know? How do you make the lower sign to be able to get the 4 lower??
*January 3, 2013*

**math**

Solve the following equation. log4(x+2)=lo4^7 Both of the 4's should be dropped down.
*January 3, 2013*

**calculus**

solve the following exponential equation 9^x=6 I get In6/In9 what is the answer approximated three decimal places?
*January 1, 2013*

**calculus**

Solve the equation in the real number system X^4+11x^3+24x^2-23x+35=0 Please show work
*December 27, 2012*

**english**

please proofread my contrast and comparision paper Another War for the People of the United States Although the Air Force, Navy, and Army were different in the 1940's and the 200's show that, even though technology and communication have improved, conflicts between ...
*November 18, 2012*

**Chemical Engineering: Raoult's Law**

n = 100
*November 18, 2012*

**physics **

A 1,600 kg car is traveling at a speed of 12.5 m/s. What is the kinetic energy of the car?
*November 15, 2012*

**Social studies**

what is me
*November 1, 2012*

**Math**

Find the magnitude and direction of the vector AZ: A(8,8) and Z (1,-3)
*October 29, 2012*

**Math**

A plane flying at an altitude of 10,000 feet begins descending when the end of the runway is 50,000 feet from a point on the ground directly below the plane. Find the measure of the angle of descent (depression) to the nearest degree.
*October 29, 2012*

**Chemistry**

Calculate the equilibrium constant at 300 K for the reaction HgO(s) ↽⇀ Hg(ℓ) + 1/2O2(g), given the data delta S delta h kJ J/K mol mol HgO(s) 70.29 −90.83 Hg(ℓ) 76.02 0 O2(g) 205.14 0
*October 14, 2012*

**Chemistry**

Calculate the entropy change when 2.42 g of H2 reacts with O2 according to the reaction 2 H2(g) + O2(g) → 2 H2O(ℓ) at 298 K and 1 atm pressure. The standard molar enthalpy of formation of H2O(ℓ) at 298 K is −285.8 kJ/mol. The corresponding free energy ...
*October 14, 2012*

**7th grade masth asap hurry plz ms.sue somebody plz**

Anonymous, you're a snitch...
*October 8, 2012*

**Chemistry**

Given the standard heats of reaction Reaction ∆H0 M(s) + 2 X2(g) → MX4(g) −123.7 kJ/mol X2(g) → 2 X(g) +297.3 kJ/mol M(g) → M(s) −25.1 kJ/mol calculate the average bond energy for a single M X bond. Answer in units of kJ/mol
*October 7, 2012*

**Chemistry**

One mole of carbon (12.0 g) in the form of crystalline graphite is burned at 25 ◦ C and 1.000 atm pressure to form CO2(g). All of the heat produced is used to heat a 4560 g bath of liquid water, originally at 25 ◦ C. What is the ﬁnal temperature of the water...
*October 7, 2012*

**Chemistry**

The combustion reaction for benzoic acid C6H5CO2H(s) + 15 2 O2(g) → 7 CO2(g) + 3 H2O(ℓ) has ∆H0 = −3226.7 kJ/mole. Use Hess’s Law to calculate ∆H0 f for benzoic acid.
*October 7, 2012*

**Algebra....HELP!!**

Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. Is there more than one way to factor this? Show your answer using both words and mathematical notation.
*October 4, 2012*

**science**

i have a work sheet to do it gives me the atomic number and the mass number of elements i have to fill in the missing electrons protons neutrons
*October 4, 2012*

**chemistry**

The enthalpy of combustion of benzoic acid (C6H5COOH) which is often used to calibrate calorimeters, is −3227 kJ/mol. When 1.402 g of benzoic acid was burned in a calorimeter, the temperature increased by 3.401 ◦ C. What is the overall heat capacity of the ...
*October 2, 2012*

**chemistry**

When 0.572 g of compound X is burned completely in a bomb calorimeter containing 3000 g of water, a temperature rise of 0.461 ◦ C is observed. What is ∆Urxn for the combustion of compound X? The hardware component of the calorimeter has a heat capacity of 3.75 kJ...
*October 2, 2012*

**chemistry**

The enthalpy of combustion of benzoic acid (C6H5COOH) which is often used to calibrate calorimeters, is −3227 kJ/mol. When 1.402 g of benzoic acid was burned in a calorimeter, the temperature increased by 3.401 ◦ C. What is the overall heat capacity of the ...
*October 2, 2012*

**chemistry**

How much heat is required to heat 28 g of solid silver from 130 ◦ C to liquid silver at 961 ◦ C? The speciﬁc heat of solid silver is 0.235 J/g · ◦ C, and the heat of fusion of silver at its melting point of 961 ◦ C is 11.3 kJ/g. Answer in ...
*October 2, 2012*

**chemistry**

A piece of a newly synthesized material of mass 25.0 g at 80.0 ◦ C is placed in a calorimeter containing 100.0 g of water at 20.0 ◦ C. If the ﬁnal temperature of the system is 24.0 ◦ C, what is the speciﬁc heat capacity of this material?
*October 2, 2012*

**english**

locate the gerund or gerund phrase and identify its noun function in the sentence " i helped by preparing dinner"
*September 25, 2012*

**College Algebra**

Use the distributive property to rewrite the expression (b+6)8=
*September 23, 2012*

**algebra**

y=x+z x=8 z=12 what is that value?
*September 23, 2012*

**Algebra 1A**

I am so lost! Solve the equation and check the solution -6(t-2)-(t+3)=2 The solution to t is ??
*September 23, 2012*

**algebra 1**

Do the equations x = 4y + 1 and x = 4y - 1 have the same solution? How might you explain your answer to someone who has not learned algebra?
*September 6, 2012*

**Algebra 1**

Do the equations x = 4y + 1 and x = 4y - 1 have the same solution? How might you explain your answer to someone who has not learned algebra?
*September 6, 2012*

**Math (Algebra 1)**

Can u explain in words how to do that because I still do not get it using numbers
*September 5, 2012*

**Math (Algebra 1)**

|(2x-5)/3| = |(3x+4)/2|
*September 5, 2012*

**Algebra 1**

How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy both inequalities? In what case might they not?
*September 4, 2012*

**Algebra 1**

What are two symbolic techniques used to solve linear equations?
*August 30, 2012*

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