Friday

June 24, 2016
Total # Posts: 215

**Statistics**

a sample of n=25 scores has a mean of M=65 and an estimated standard error of 2 points. What is the sample variance
*June 22, 2016*

**Physics**

A satellite experiences a gravitational force of 228 N at an altitude of 4.0xE7 m above Earth. What is the mass of this satellite ?
*June 14, 2016*

**Physics**

A 620 kg satellite orbits the earth where the acceleration due to gravity is 0.233 m/s^2. What is the kinetic energy of this orbiting satellite?
*June 14, 2016*

**Physics**

I am not sure what W stands for/is :/
*June 14, 2016*

**Math**

In the triangle ABC given, side AB is twice as long as side AC. We have: m<BAC=120° mBC= 8cm Determine rounded to the nearest unit, the perimeter of triangle ABC.
*June 13, 2016*

**Computer science**

When I run the code an outline of the image is shown but the images do not appear?
*April 26, 2016*

**Computer science **

I want to make my traffic lights run automatically without any user input. I have created this code so far but the images don't show up please help. My code: <!DOCTYPE html> <html> <head> <script type="text/javascript"> var lights=["...
*April 26, 2016*

**math**

how many 27 cubic inches fit into a 8ft crate?
*April 15, 2016*

**Math**

Let x be a number. The equation is: 2x - 9 = 4 You can solve if needed.
*March 16, 2016*

**Chemistry**

What volume (in milliliters) of 0.170 M NaOH should be added to a 0.140 L solution of 0.021 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.84? I tried using the Henderson- Hasselbalch equation but I am confused about what to do with the answer to ...
*February 28, 2016*

**math**

the green paint jar is 4/8 full. The purple paint jar is 4/6 full. Which paint jar is less full?
*February 22, 2016*

**Finance**

Juan and Rachel Burpo plan to buy a time-share in six years of $16,860. In order to have adequate funds to do so, the Burpo want to make a deposit to their money market fund today. Assume that they will be able to earn an investment rate of 5.75%, compounded annually. How much...
*February 7, 2016*

**Math**

57 mi/h
*January 18, 2016*

**chemistry**

Explain why using a Büchner funnel with vacuum to filter hot fluid will result in clogging. What is the result of reduced pressure on a hot volatile solvent? How does this affect the amount of solute that is dissolved? Where would the funnel become clogged?
*September 30, 2015*

**Math-unit rate**

Molly walks 1 1/2 miles in 3/5 hour. What is the walking rate?
*August 19, 2015*

**MATH**

WRITE A WORD PROBLEM FOR THE EQUATION 12N-45=504.
*May 16, 2015*

**Chemistry**

Complete and balance the molecular equation, including phases, for the reaction of aqueous iron(III) nitrate, Fe(NO3)3 and aqueous lithium hydroxide, LiOH Enter the balanced net ionic equation, including phases, for this reaction.
*March 5, 2015*

**Math**

the answer to 4 is a i got it wrong using d so its a you guys
*November 5, 2014*

**speech**

Interesting informative speech suggestions?
*October 21, 2014*

**history**

She's not being mean.
*October 17, 2014*

**Physics**

Which method of sliding a block of ice requires less force—(a) pushing or (b) pulling at the same angle above the horizontal?
*October 8, 2014*

**Physics**

An object that starts from rest completes 7 revs in 3 seconds. What is angular accel. in rad/s2?
*October 4, 2014*

**algebra 2**

Find an equation of the linear function f having a slope of -2 if f(1)=3 My teacher never taught us this, please help me
*September 17, 2014*

**M**

Find an equation of the linear function f having a slope of -2 if f(1)=3. My teacher never taught us this, please help.
*September 17, 2014*

**Math 4th grade**

Sorry 149,690 the digit is 1 .... So 140,000.. Confused ?
*September 8, 2014*

**Math 4th grade**

So 149,690 is 150,000?
*September 8, 2014*

**Math 4th grade**

Is 260,000 correct Ms.Sue
*September 8, 2014*

**Math 4th grade**

260,000
*September 8, 2014*

**Math 4th grade**

160,656 1 is underlined .round the digit
*September 8, 2014*

**Math 4th grade**

9,924 9 is the underline digit round each digit... I think it's 10,000
*September 8, 2014*

**Algebra1**

5c+4=-26. ?? Is it 6,,,-6,,,-4.4 or 3??
*September 2, 2014*

**physics**

A snail moved 0.14 m between two cabbages in 3.0 minutes. The average speed of the snail is
*July 31, 2014*

**physics**

A bus traveled 10.0 km from the north end of the city to the south in 10.0 minutes. The average speed of the bus was
*July 31, 2014*

**physics**

Written in scientific notation, with three significant digits, the number 0.01050 is_______?______ x 10?
*July 31, 2014*

**physics**

Initial sources of energy used to operate machines were __________ and __________.
*July 31, 2014*

**physics**

A machine loses 600 kJ as waste heat while producing 5,350 kJ of useful energy output. The efficiency of this machine is
*July 31, 2014*

**Ms. Sue,**

Thank you!
*July 30, 2014*

**world history**

Which of the following statements is true of the Gulf of Tonkin affair? A. Johnson told Congress to pass the Gulf of Tonkin Resolution to let him expand the war. B. Congress was divided and only reluctantly passed the Gulf of Tonkin Resolution. C. The destroyer Maddox was sunk...
*July 30, 2014*

**Accounting **

During its first year of operations, Maria Rose set up Roseland Inc. and invested $25,000 in the corporation. The company earned $68,000 of revenues and incurred $32,000 of expenses. At the end of the year, the company owed $24,000 to its creditors. A cash dividend of $5,000 ...
*July 13, 2014*

**precal help asap**

solutions to the equation tan^2x - 3 = 0 ( there can be more than one) 2pi/3 pi -pi/3 5pi/3
*May 28, 2014*

**PRECAL MULTIPLE CHOICE **

If a triangle ABC has A = 52 degrees, side a = 178, and side b = 234, then what is the measure of B? B= 62.3 or 117.7 B = 62.3 B = 117.7 there is no solution
*May 28, 2014*

**precal help asap**

If a triangle ABC has A = 52 degrees, side a = 178, and side b = 234, then what is the measure of B?
*May 28, 2014*

**Precal, TRUE OR FALSE**

TRUE OR FALSE The motion of a pendulum for which the maximum displacement from equilibrium varies is an example of simple harmonic motion.
*May 28, 2014*

**Precal **

An arc of length 30 meters is formed by a central angle A on a circle of radius 15. The measure of A in degrees (to the nearest minute) is
*May 28, 2014*

**Precal, please help asap!**

How many solutions does a triangle with values a = 42, A = 117 degrees, and b = 34 have
*May 28, 2014*

**Precal, please help asap!**

The angles of elevation theta and alpha to an airplane from the airport control tower and from an observation post 2 miles away are being continuously monitored. If theta is 42 degrees when alpha is 81 degrees, how far is the plane from the observation post?
*May 26, 2014*

**Precal **

A distress flare is shot straight up from a ship’s bridge 75 ft above the water with an initial velocity of 76 ft/sec. a) Write a set of parametric equations for the path of the flare. ______________________________ ______________________________ What window gives you ...
*May 26, 2014*

**Precal**

Can someone please help me with the last 4 questions in this paragraph? Suppose that Tiger hit a golf ball with an initial velocity of 150 ft/sec at an angle of elevation of 30°. Write the parametric equations to represent the flight of the ball. How long is the golf ball ...
*May 26, 2014*

**Physics**

A wheel with a weight of 395N comes off a moving truck and rolls without slipping along a highway. At the bottom of a hill it is rotating at an angular velocity of 23.0rad/s . The radius of the wheel is 0.607m and its moment of inertia about its rotation axis is 0.800 MR2. ...
*April 11, 2014*

**chemistry**

trigonal pyramidal
*February 23, 2014*

**algebra**

What is the first step you should take to solve the following expression: 2 – 16 ÷ 4 × (3 + 2)2 + 1 ? A. 16 ÷ 4 B. 2 – 16 C. 3 + 2 D. 22
*November 15, 2013*

**Algebra**

Remove the parentheses from the following expression, and combine like terms: (2x + 3y – 4z) – (x – y – z) A.3x +4y+5z B. 3x + 4y – 3z C.x +4y–3z D. x + 2y – 5z
*November 15, 2013*

**math**

its not there
*November 5, 2013*

**Medical Billing and Coding**

A. 434.91, 438.21, 438.12, 250.00 305.1, 88.91, 93.39, 93.72
*November 1, 2013*

**Medical Billing and Coding**

B. 434.91, 342.91, 784.59, 250.00, 305.1, 88.91, 93.39, 93.74
*November 1, 2013*

**algebra 1**

250/7
*September 6, 2013*

**physics**

9.816
*July 28, 2013*

**Physics**

1c please
*June 15, 2013*

**Chemistry **

What is the concentration of the resulting solution when 250 mL of 0.1 M K3PO4 and 300 ml of 0.5 M K3PO4 are mixed?
*June 10, 2013*

**Science**

dependent variable?
*May 22, 2013*

**Statistics**

2.05
*April 24, 2013*

**Statistics**

.0288
*March 22, 2013*

**algebra**

In a class of 50 students, the number of women is 2 more than five times the number of men. How many women are in the class?
*March 19, 2013*

**Physical Science**

The transfer of heat that takes place because of the density difference in fluids is
*March 18, 2013*

**Physics**

An object is thrown vertically upward at 18m/s from a window and hits the ground 1.6s later. What is the height of the window above the ground?(air resistance is negligible)
*December 29, 2012*

**math**

Write two expressions that show that increasing a quantity by 4% is the same as multiplying that quantity by 1.04.
*December 5, 2012*

**Statistics**

10.12
*November 14, 2012*

**Math**

A line has a slope of 6/7 and a y-intercept of -5. Which of the following is the equation of the line? 7x - 6y = -35 7x - 6y = -5 6x - 7y = 35 6x - 7y = -35 I'm honestly not sure with this, I'm thinking that it's 7x - 6y = -5.. Not sure though. Also, could you ...
*October 31, 2012*

**Finance**

Here is a forecast of sales by National Bromide for the first 4 months of 2012 (figures in thousands of dollars): Month: 1 2 3 4 Cash sales 19 28 22 18 Sales-on-crdt 140 160 130 110 On average, 40% of credit sales are paid for in the current month, 20% in the next month, and ...
*October 10, 2012*

**trig**

what is 7pi/3 in degree .13pi/3 in degree
*October 10, 2012*

**Calc**

The region bounded by y=2.5x^2 and y=4x is to be rotated about both axes and the volume generated calculated by both the washer and the shell methods. 1)The volume of the region bounded by y=2.5x^2 and y=4x, when rotated about the x-axis is? 2) The volume of the region bounded...
*September 16, 2012*

**Chem**

Great! Thank you!
*September 12, 2012*

**Chem**

thanks! all i did for a was change 2.4 by converting it in the manner they said, from feet to inches, inches to centimeters. same with 19.3. i changes it from grams to pounds.
*September 12, 2012*

**Chemistry**

actually, thats not the right answer. you end up getting .21 which is wrong for some reason.
*September 11, 2012*

**Chemistry**

thanks. i wanted the actual way to get it, but whatever.
*September 11, 2012*

**Chemistry**

A bug is observed to travel 72 cm in 7.5 seconds. What is the bug's speed in miles per hour?
*September 11, 2012*

**science**

does anyone know?
*September 9, 2012*

**science**

I am thinking a, if they mean adaptive radiation...
*September 9, 2012*

**science**

a. Evolution of human and bat forelimbs was adaptive, but not for whales. b. Humans and bats evolved by natural selection and whales evolved by Lamarckian mechanisms. c. Whales are not properly defined as mammals. d. Natural selection in an aquatic environment resulted in ...
*September 9, 2012*

**science**

Analysis of forelimb anatomy of humans, bats, and whales shows that humans and bats have fairly similar skeletal structures, while whales have diverged considerably in the shapes and proportions of their bones. However, analysis of several genes in these species suggests that ...
*September 9, 2012*

**SCIENCE**

Celsius, grams, liters, and meters, if you mean the metric system
*September 9, 2012*

**math**

2.78 (rounded to the nearest 100th)x 10^3
*September 9, 2012*

**Math**

Any help would be appreciated! What is 38.896/5.1 + 509.15 to the correct number of significant figures? 516.78 What is (154+8446.1)/54 to the correct number of significant figures? 159.261 Thanks!
*September 7, 2012*

**Maths-Trigonometry**

a kite is attached to a string that is 15m long. If the string makes an angle of 26 degrees to the horizontal the height of the kite is.
*July 28, 2012*

**business**

The correct answer is C
*June 6, 2012*

**Pre-Calc**

Hello! I'm stuck on how to do this problem and would appreciate some help! Choose a non-zero complex number c for f(z) = z2+ c. Find a complex number v that is in the escape set. Find a complex number w that is in the prisoner set. Graph the first five iterations of both v...
*May 17, 2012*

**Art**

Yes, that makes sense. Thank you!
*May 16, 2012*

**Art**

Well if that is not the answer then it would have to be A because C and D kind of go hand and hand.
*May 16, 2012*

**Art**

Can you help with one more thing? The features of mosaic art include the following EXCEPT: A)background is naturalistic B)figures usually have stiff and stylized gestures C)outlines are made clear and bold D)the overlapping of figures is avoided B
*May 16, 2012*

**Art**

Great! Thank you!
*May 16, 2012*

**Art **

Any help is appreciated! What are Pendentives? A)Free standing pillars B)Semicircular arches C)Octagonal lintels D)Hemispherical dome I'm not sure about this one. They are not A because they were not freestanding. D could be right because I've seen them described in ...
*May 16, 2012*

**History**

The new morals and manners of the 1920s were reflected in A. women's fashion B. the great migration C. the new factory jobs D. Politics Americans responded to the Selective Service Act A. with enthusiasm B. with antiwar riots C. by refusing to register D. by becoming ...
*May 7, 2012*

**Chemistry**

Thank You!
*April 26, 2012*

**Chemistry**

The Kp for the following equilibrium system is 4.31 x 10‒4 at 375°C : N2(g) + 3H2(g) ↔ 2NH3(g). If 0.862 atm of N2 and 0.373 atm of H2 were mixed in a constant-volume flask and heated to 375°C, which of the following would be closest to the equilibrium ...
*April 26, 2012*

**language**

does a type sketch always have to be written negatively? Can one write a type sketch from a positive point of view? Instead of pointing out vices or folly, can one point out good attributes? Thanks
*April 21, 2012*

**Physics**

kjgfhfkjgjkhgkjhghduytifkhfjh
*February 29, 2012*

**math**

The length of A'B is '18.12' For sure it's the right answer.
*February 10, 2012*