Thursday

March 26, 2015

March 26, 2015

Total # Posts: 92

**math urgent**

let V=R^3 and S={u1,u2,u3}=[1;2;0],[1;0;0],[1;0;1] These are three vectors 1 by 3 use gschmidt to obtain an orthogonal basis and then find the coordinates of x=[1;2;3] relative to this basis.
*March 25, 2015*

**calc**

A plane flies horizontally at an altitude of 5 km and passes directly over a tracking telescope on the ground. When the angle of elevation is π/3, this angle is decreasing at a rate of π/3 rad/min. How fast is the plane traveling at that time?
*March 23, 2015*

**calc**

okay , thanks!
*March 22, 2015*

**calc**

Use a linear approximation (or differentials) to estimate the given number. sqrt(99.6) so i think i start with f(x)=sqrt(100-x) so f'(x)= 1/2(100-x)^-1/2 (-1) using a=0 f(x)= 10 and f'(x)= -0.05 when using L(x)=f(a)+f'(a)(x-a) where x=a I get 10 + -0.05(x) and then...
*March 22, 2015*

**Chemistry**

How much heat is required to convert 6.78g of ice at − 14.0∘C to water at 24.0∘C ?
*March 16, 2015*

**math**

logan isn't 2 years older than Lindsey. Five years ago the sum of their ages was 30. Find Lindsey current age. X-5+2x-5=30. -1 + 0= 30. I don't think this right I tried I can't get the right answer. According to the common core the answer is supposed to be 19. ...
*March 11, 2015*

**linear algebra- check question**

I just want to make sure my reasoning is correct. Let A be a 7X3 matrix whose rank is 3 a)are the rows of A linearly dependent or independent? I said dependent because a matrix whose rank is 3 means the row rank is 3, but if there are 7 rows then they have to be dependent on ...
*March 10, 2015*

**astronomy**

I just wanted to check to make sure I put these in the right order steps of a low mass star a clump forms in a giant molecular cloud. then a prostar forms hydrogen fusion begins the star moves onto the red giant branch, then a helium flash occurs the star moves onto the ...
*March 8, 2015*

**calc**

A particle moves along the curve below. y = sqrt(8 + x^3) As it reaches the point (2, 4), the y-coordinate is increasing at a rate of 5 cm/s. How fast is the x-coordinate of the point changing at that instant?
*March 5, 2015*

**math**

Is the only way to check if a set of vectors are linearly indep. is if the det does not equal 0? I have a problem where v1= [1;2;1;-1] v2=[0;2;1;1] v3=[3 1 0 2] but this creates a 3X4 matrix and you can't find the det of this. I am really confused! thanks :D
*March 4, 2015*

**linear(hw check)**

determine if v1= [ 2 1 0] v2=[ -1 1 3] v3=[ 0 -1 6] spans the vector space of rows with three real entries which has dimension 3. so I wanted to make sure I did this correct. First I created a matrix with v1,v2,v3 as the columns (so for example column 1= 2 1 0 then I created ...
*March 4, 2015*

**linear algebra**

Let V be the set of all real-valued continuous functions defined on R1. If f and g are in V, we define f ⊕ g by (f ⊕ g)(t) = f(t) + g(t). If f is in V and c is a scalar, we define c f by (c f)(t) = cf(t). Then V is a vector space, which is denoted by C(−&#...
*February 26, 2015*

**math**

Use logarithmic differentiation to find the derivative of the function. y = (x^4 + 2)^2(x^3 + 4)^4
*February 26, 2015*

**calc**

Use logarithmic differentiation to find the derivative of the function. y = (x^4 + 2)^2(x^3 + 4)^4
*February 25, 2015*

**math**

Which of the following subsets of the vector space Mnn are subspaces? (a) The set of all n × n symmetric matrices (b) The set of all n × n diagonal matrices (c) The set of all n × n nonsingular matrices
*February 25, 2015*

**Algebra**

Bob and Ray are describing the same number. bob says the number is a positive even integer less than or equal to 20. Ray says the number is divisible by 4. If bobs statement is true, and Rays statement is false what are all the possible numbers? PLEASE HELP I need the answer ...
*February 25, 2015*

**linear algebra**

Which of the given subsets of R3 are subspaces? (a) The set of all vectors of the form [a;b;0] b)The set of all vectors of the form [a;b;c] where a > 0. c) The set of all vectors of the form [a;c;c] d) The set of all vectors of the form [a;b;c] where 2a − b + c = 5.
*February 23, 2015*

**linear algebra**

Which of the given subsets of R3 are subspaces? (a) The set of all vectors of the form [a;b;0] b)The set of all vectors of the form [a;b;c] where a > 0. c) The set of all vectors of the form [a;c;c] d) The set of all vectors of the form [a;b;c] where 2a − b + c = 5. ...
*February 22, 2015*

**linear algebra**

show that the only subspaces of R1 are 0 and R1 itself. okay , so I don't know if I'm making it more complicated than it is, but R1 is just a point right? so i don't know how i would prove this?
*February 15, 2015*

**calc**

lim x → ∞ tan−1(x7 − x9)
*February 15, 2015*

**calc**

find this value. tan(arctan(3)) how do ifind arctan 3
*February 14, 2015*

**criminal law**

Based on the evidence and the probable decsion of the grand jury?
*January 19, 2015*

**criminal law**

How does a prosecutor make the decision to charge someone?
*January 19, 2015*

**criminal law**

Thank you Ms. Sue, this one has helped a bunch!
*January 19, 2015*

**criminal law**

I just cannot seem to understand the question. Is it asking for my opinion or what?
*January 19, 2015*

**criminal law**

I am having a hard time understanding how to answer this question. Discuss whether or not a defense attorney and/or the defendant can address a grand jury and provide reasoning for why a defense attorney and/or the defendant would choose to attend or not attend the grand jury ...
*January 19, 2015*

**criminal law**

What is the purpose of a grand jury issuing a true bill (criminal charge) or not.
*January 19, 2015*

**Criminal Justice**

Thank you:)
*January 19, 2015*

**Criminal Justice**

1.) Provide all the procedural and substantive ways that a prosecutor and a defense attorney can resolve a case before it goes to a grand jury. 2.) Explain all the procedural and substantive dispositions of a case between a prosecutor and a defense attorney before it goes to a...
*January 19, 2015*

**Criminal Justice**

Based on the evidence presented by the prosecutor and the finding of probable cause that a crime was committed, discuss the purpose of a grand jury issuing a true bill (criminal charge) or not.
*January 19, 2015*

**Criminal Justice**

Discuss whether or not a defense attorney and/or the defendant can address a grand jury and provide reasoning for why a defense attorney and/or the defendant would choose to attend or not attend the grand jury proceeding.
*January 19, 2015*

**criminal justice**

okay thank you the nolo site helped a lot
*January 19, 2015*

**criminal justice**

Explain why a grand jury is used rather than the prosecutor simply issuing a criminal charge.
*January 19, 2015*

**multiplcation**

6 X 1750=
*December 21, 2014*

**Criminal Justice**

that google page is really helping me! thank you !
*September 23, 2014*

**Criminal Justice**

I really have no clue :(
*September 23, 2014*

**Criminal Justice**

What are three main issues that face corrections professionals on a regular basis and address the best responses to these issues.
*September 23, 2014*

**Criminal Justice**

Social Learning Theory and Conflict Theory?
*September 23, 2014*

**Criminal Justice**

I am failing to find the answers.
*September 23, 2014*

**Criminal Justice**

How do corrections professionals use criminal theory in their practice.
*September 23, 2014*

**criminal justice**

Introduction to Criminal Justice
*September 23, 2014*

**criminal justice**

there is only a glossary and a reference page D:
*September 23, 2014*

**criminal justice**

Still unable to find the answer...
*September 23, 2014*

**criminal justice**

I just looked through and did a search, and there is not a list of social justice principles of equality, solidarity, and human rights.
*September 23, 2014*

**criminal justice**

I just am having a hard time coming up with answers... I would like some input, and ideas that may guide me on the right path to successfully answering this.
*September 23, 2014*

**criminal justice**

In what ways do corrections professionals use the social justice principles of equality, solidarity, and human rights to build a more just society.
*September 23, 2014*

**algebra**

Train A leaves a station traveling at 80km/h. Two hours later, train B leaves the same direction at 90km/h. How long does it take train B to catch up to train A?
*November 3, 2013*

**math**

x 1 2 3 4 5 P(X=x) 0.1 0.2 a b 0.2 Given that E(X)=3.1, calculate the value of a and b
*September 25, 2013*

**math**

Find the value of p in each of these probability distributions x 5 7 9 11 13 P(X=x) p p p 0.12 0.04 x -2 0 1 3 P(X=x) 2/9 1/9 p 2/9 x -4 -1 2 5 8 P(X=x) 0.12 0.24 p 2p 0.07
*September 25, 2013*

**math**

In the game of roulette a ball rolls into one of 37 slots. All the slots are evenly likely. Eighteen of the slots are red, eighteen are white and 1 is green. the ball is rolled 10 times. Calculate the probability of exactly 6 reds? the answer is 0.l94
*September 24, 2013*

**math**

A fair six sided dice has the faces numbered from 1 to 6. The dice is thrown 4 time. Calculate the probability of exactly 2 fives. the answer is 25/216
*September 24, 2013*

**Math (Please Help)**

3. A hot air balloon is at a height of 2,250 feet. It descends 150 feet each minute. Find it's height after six, eight, and ten minutes. Make a table to show the pattern of heights. Write an expression for the balloon's height at "m" minutes. This one just ...
*September 18, 2013*

**MATH (urgent)**

1. So I assume it's adding 1.5 + 1.75 • n, right? For the first taxi can service? Then, the NEXT one charges 1.9 + 1.6 • n, correct? So far, all I have is that. I don't know what to multiply it by, because it says "between 1 and 10 miles." Would it ...
*September 18, 2013*

**MATH**

1. The cost in dollars of an "n" mile trip with the Supreme Taxi Service is given by 1.5 + 1.75n. The cost of an "n" mile trip using Town Taxi Service is given by 1.9 + 1.6n. For rides between 1 and 10 miles, which service would you choose? Explain. 2. ...
*September 18, 2013*

**Algebra**

1. The cost in dollars of an "n" mile trip with the Supreme Taxi Service is given by 1.5 + 1.75n. The cost of an "n" mile trip using Twon Taxi Service is given by 1.9 + 1.6n. For rides between 1 and 10 miles, which service would you choose? Explain. 2. ...
*September 17, 2013*

**physics**

please answer it
*July 17, 2013*

**6th grade math**

1/4 * 1/2 =4D
*January 16, 2012*

**Calculus**

A farmer wishes to enclose a long rectangular pin that will then be divided into four separated, adjacent pins (all 4 pins are in a row) for different breeds of farm animals. He has 1100 feet of fencing available for use. What should the dimensions of the pin be so that he is ...
*December 1, 2011*

**us history**

How Did the Industrial Revolution impact American Society economically, socially, politically, and morally?
*November 30, 2011*

**6th grade**

I need help math.
*September 11, 2011*

**chemistry**

Calculate the ph for ch3co2h,3% dissociated at a concentration of 0.02 mol dm-3.
*August 2, 2011*

**Physics**

How many slices of pizza must you eat to walk for 1.0 h at a speed of 5.0 km/h? (Assume your mass is 68 kg). Our book provides: -One slice of pizza's energy content is 300 cal, or 1260 KJ. -To walk at 5 km/h= 380 W of a 68 kg individual. Thanks!!!
*April 14, 2011*

**Chemistry**

Assume that it is necessary to determine the [Fe3+] in a solution that may be in the .0001 to .0005 M range. Outline a spectrophotometric method that would accurately give the required data?
*March 10, 2011*

**Chemistry**

the limiting reagent is the SCN
*March 10, 2011*

**Chemistry**

How would the absorbance of the standard solution have been affected if 0.00050 M NaSCN had been used in place of 0.00040 M NaSCN?
*March 10, 2011*

**geography**

what are the three things that describes what a map is
*December 1, 2010*

**5th grade math**

We did peel an orange. What a great visual!! Would not have thought to do that! Thank you so much!
*August 30, 2010*

**5th grade math**

The full question is: Why is a globe more accurate than a flat map in representing the earths surface?
*August 30, 2010*

**math**

Because you can't flatten it out and it is not a perfect square shape? Is that right? Thank you Ms. Sue
*August 30, 2010*

**math**

why is a globe more accurate than a flat map?
*August 30, 2010*

**physics**

I'm not sure, it says 4.5 m^-3
*July 22, 2010*

**physics**

The heating value of a Gas is 39MJm-3 a) If 4.5m-3 of the gas is burned how much energy is released? b) If the gas is burned in 5 minutes what is the power? c) If the burning occurs in an engine that converts the energy to forward motion and the engine is 20% efficient in ...
*July 22, 2010*

**Physics**

An industrial worker accidentally inhaled a radioisotope with an activity of 0.200 kBq. The substance swallowed has a very long effective half-life and therefore the activity will not change significantly during the workerâ€™s lifetime. Every decay of the ...
*May 16, 2010*

**Physics**

If a 5.40g bullet is fired horizontally into a suspended(hanging)10kg block of wood and causes the block, with bullet embedded, to move off with horizontal velocity of 0.30m/s, What is the impact velocity of the bullet?
*April 15, 2010*

**Physics**

Thank you.
*April 13, 2010*

**Physics**

A 1000kg car is traveling along a level road at 20.00ms, when the brakes are applied long enough to do 50000 J of work. 1) what is the initial kinetic energy of the car? 2) if the car moved 100m while the brakes where applied, what was the average force exerted on the brakes.
*April 13, 2010*

**Chemistry**

(1) Which of the following clusters of orbitals would form the shape trigonal bipyramidal and would also be possible within the valence shell of an atom? a.) one d orbital b.) five d orbitals c.) five sp^3 orbitals d.) five sp^3d orbitals e.) five sp^3d^2 orbitals f.) two sp ...
*April 1, 2010*

**algebra**

what is the largest multiple of 12 that can be written using each digit 0,1,2,3,4,5,6,7,8,9 exactly once?
*January 20, 2010*

**4th grade Science**

How are bacteria and virus similar and how are they different ?
*April 15, 2009*

**Physics**

Hi Guys! Need help with this physics problem, I have no idea how to set it up or how to visualize it but would appreciate any help. Instructions for finding a buried treasure include the following: Go 80 paces at 235°, turn to 130° and walk 115 paces, then travel 100 ...
*October 19, 2008*

**Science**

How do you model an atom?
*October 2, 2008*

**Math**

What is 19x7x3x83?
*October 1, 2008*

**Math**

How do you multiply decimals?
*October 1, 2008*

**Physical Science**

Use and aquarium filter, bieker, and cup. Figure the rest out on the own.
*October 1, 2008*

**geography**

how does airbus fit into the airbus industry
*June 1, 2008*

**word unscramble in french**

papier
*March 11, 2008*

**Alegbra**

i=p(1+r) solve for r
*February 18, 2008*

**Biology**

TRUE or FALSE? 1) A cell whose membrane potential is zero is in an ISOTONIC environment 2) Gases enter a cell FASTER than liquids at a given temperature 3) When a plasma membrane has a pressure of zero, passive transport STOPS
*November 27, 2007*

**Ms. Sue, answer me please!**

during the late 1700's and the aerly 1800's ,indians and white amercanscame to conflict.why?
*September 10, 2007*

**science**

why were sodium and magnesium not discovered until recent times?
*September 2, 2007*

**smoking**

when did the surgeon general issue the first report indictating that secondhand smoke is dangerous to nonsmokers http://www.surgeongeneral.gov/library/history/biokoop.htm See if this helps any. I see the date of 1964 as the beginning of the Public Health Service warning ...
*November 22, 2006*

**science**

endrottarts
*September 28, 2006*

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