Tuesday

July 28, 2015

July 28, 2015

Total # Posts: 785

**PRE - CALCULUS**

Oh okay thank you so much
*April 17, 2015*

**PRE - CALCULUS**

A woman works out by running and swimming. When she runs, she burns 7 calories per minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336 calories in her workout. Write an inequality that describes the situation. Let x represent the number of ...
*April 17, 2015*

**PRE - CALCULUS**

Thank you !
*April 17, 2015*

**PRE - CALCULUS**

Okay thank you so much :)
*April 17, 2015*

**PRE - CALCULUS**

4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20 We did the first two but not the last one
*April 17, 2015*

**PRE - CALCULUS**

No I was talking about this one 5x+3y+9z = 20
*April 17, 2015*

**PRE - CALCULUS**

Oh so for the last one I don't do anything ?
*April 17, 2015*

**PRE - CALCULUS**

Okay for the 3rd one what am I supposed to put in the boxes ? what numbers ?
*April 17, 2015*

**PRE - CALCULUS**

Thats for x+4y+6z =-32 right ?
*April 17, 2015*

**PRE - CALCULUS**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20 ...... I NEED HELP WITH THE OTHER TWO PLEASE :) 4 -1 3 | 12
1 4 6 | -32
5 3 9 | 20 1 0 0
...
*April 17, 2015*

**PRE - CALCULUS**

Thank you so much !
*April 17, 2015*

**PRE - CALCULUS**

A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Sn: 1 + 4 + 7 + . . . + (3n - 2) = n(3n - 1)/2
*April 17, 2015*

**PRE - CALCULUS**

Thank you so much !
*April 17, 2015*

**PRE - CALCULUS**

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2+5+8+...+(3n-1)=n(1+3n)/2
*April 17, 2015*

**pre-calc**

Use mathematical induction to prove that the statement is true for every positive integer n. Show your work. 2 is a factor of n2 -n+2
*April 17, 2015*

**pre-calc - JAI**

Nevermind Thank you so much.
*April 17, 2015*

**pre-calc - JAI**

can you show me how you got those answers cause i have to show my work THANK YOU
*April 17, 2015*

**pre-calc - JAI**

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2+5+8+...+(3n-1)=n(1+3n)/2
*April 17, 2015*

**pre-calc - JAI**

Thank you so much , but I'm supposed to show my work :/
*April 17, 2015*

**pre-calc - JAI**

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
*April 17, 2015*

**HELP PLEASE**

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
*April 16, 2015*

**pre-calc**

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
*April 16, 2015*

**pre-calc**

A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Show your work. Sn: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3 Sk: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + k(k + 1...
*April 16, 2015*

**4th grade math**

you don't have choice ? 4 ft and 6ft
*April 16, 2015*

**pre-calc**

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
*April 16, 2015*

**pre-calc**

Yeah But I already did the first one , sorry. The first one is 4x-y+3z = 12
*April 16, 2015*

**pre-calc**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. x+4y+6z =-32 5x+3y+9z = 20
*April 16, 2015*

**pre-calc**

I actually have to show my work , But I need help with this
*April 16, 2015*

**pre-calc**

How did you do it ? what do you put in the boxes ?
*April 16, 2015*

**pre-calc**

When I do it , it says Im wrong
*April 16, 2015*

**pre-calc**

I don't know how to use that
*April 16, 2015*

**pre-calc **

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20
*April 16, 2015*

**English 4**

Im not asking to write an essay for me , I just wanted some details about them
*April 16, 2015*

**English 4**

Yeah I have , Thank you Reed. I just wanted to refresh my memory instead of going threw both of the books again
*April 16, 2015*

**English 4**

lol i know what difference and alike is .. I just didn't know about the two , I read a long time ago and forgot
*April 16, 2015*

**English 4**

there stories , And no I don't , I have to write an essay about the likes and difference on them
*April 16, 2015*

**English 4**

what is the difference and the likes of Psalm 23 and The Sermon on the Mount ?
*April 16, 2015*

**pre-calc **

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 1^2 + 4^2 + 7^2 + . . . + (3n - 2)^2 = (n(〖6n〗^2-3n-1))/2 S1:1^2+4^2+7^2+…+(3*1-2)^2=1(6*1^2-3n-1)/2 S1...
*April 16, 2015*

**pre-calc **

A woman works out by running and swimming. When she runs, she burns 7 calories per minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336 calories in her workout. Write an inequality that describes the situation. Let x represent the number of ...
*April 16, 2015*

**pre - CALCULUS**

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
*April 15, 2015*

**pre - CALCULUS**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20
*April 15, 2015*

**pre - CALCULUS**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20
*April 15, 2015*

**pre - CALCULUS**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20
*April 15, 2015*

**Pre - CALCULUS**

Graph the function. Then use your graph to find the indicated limit. You do not have to provide the graph f(x) = 5x - 3,lim x -->5 f(x)
*April 15, 2015*

**english**

Compare Psalm 23 and The Sermon on the Mount
*April 14, 2015*

**PRE - CALCULUS**

Graph the function. Then use your graph to find the indicated limit. You do not have to provide the graph f(x) = 5x - 3,lim x -->5 f(x)
*April 14, 2015*

**Pre - CALCULUS**

Graph the function. Then use your graph to find the indicated limit. You do not have to provide the graph f(x) = 5x - 3,lim x -->5 f(x)
*April 14, 2015*

**What does this mean**

Oh okay Thanks
*April 13, 2015*

**What does this mean**

develop a two-page (400-500 word) "400-500" What does that mean on Microsoft
*April 13, 2015*

**pre - CALCULUS**

or should I just do this instead of all my factors and simplifies 2y - x = 5 2y - 5 = x so x = 2y - 5 (2y - 5)² + y² - 25 = 0 (2y - 5)(2y - 5)
*April 13, 2015*

**pre - CALCULUS**

2y - x = 5 2y - 5 = x so x = 2y - 5 (2y - 5)² + y² - 25 = 0 (2y - 5)(2y - 5) 4y² - 10y - 10y + 25 4y² - 20y + 25 4y² - 20y + 25 + y² - 25 = 0 4y² + y² - 20y = 0 4y² + y² - 20y = 0 y(4y + y - 20) = 0 y=0 x= -5 4y + y - 20 = 0 5y...
*April 13, 2015*

**pre - CALCULUS**

Solve the system by the substitution method. Show your work. 2y - x = 5 x2 + y2 - 25 = 0
*April 13, 2015*

**Pre - CALCULUS**

Solve the system by the substitution method. Show your work. 2y - x = 5 x2 + y2 - 25 = 0
*April 13, 2015*

**Pre - CALCULUS**

Thank you guys :)
*April 13, 2015*

**Pre - CALCULUS**

Locate the foci of the ellipse. Show your work. 𝑥2/36+ y2/11=1
*April 13, 2015*

**pre - CALCULUS**

Thank you :)
*April 13, 2015*

**pre - CALCULUS**

Find the indicated sum. Show your work. 4 k=1 (-1)^k(k+11) ￼Inbetween the 4 and k , Theres a backwards 3 sign
*April 13, 2015*

**PRE - CALCULUS**

Thank you
*April 12, 2015*

**PRE - CALCULUS**

Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations. x = 6 cos t, y = 6 sin t; 0 ≤ t ≤ 2π A. x2 - y2 = 6; -6 ≤ x ≤ 6 B. x2 - y2 = 36; -6 ≤ x ≤ 6 C. x2 + y2 = 6; -6 ≤ x &#...
*April 12, 2015*

**pre - CALCULUS**

Thanks you
*April 11, 2015*

**pre - CALCULUS**

Hmm okay thanks anyways , I'ma just move on and check my other one
*April 11, 2015*

**pre - CALCULUS**

Okay tHANKS
*April 11, 2015*

**pre - CALCULUS**

I don't know how to use that calculator , I've tried
*April 11, 2015*

**pre - CALCULUS**

Okay but my answer is C is that wrong or right ?
*April 11, 2015*

**pre - CALCULUS**

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. x + y + z = 9 2x - 3y + 4z = 7 x - 4y + 3z = -2 A. {(-7z/5+34/5 ,2z/5 +11/5 , z)} b. {(- 7z/5+34/5 , 2z/5- 11/5 , z)} c . {( z/5+ 34/5 , 2z/5+11/5 , z)} C?
*April 11, 2015*

**Pre - CALCULUS**

LOL You got me confused because I said my answer was C in the first place lmao , THANK YOU !!
*April 11, 2015*

**Pre - CALCULUS**

1/12 ?
*April 11, 2015*

**Pre - CALCULUS**

B ?
*April 11, 2015*

**Pre - CALCULUS**

Find the inverse of the matrix, if possible. A = { 0 -6 } {-2 -5} A. 0 -1/2 -1/6 5/12 B. -1/6 0 5/12 - 1/2 C. 5/12 - 1/2 -1/6 0 D. 5/12 1/2 1/6 0 C ?
*April 11, 2015*

**Pre - CALCULUS**

Thanks !
*April 11, 2015*

**Pre - CALCULUS**

SO I'm right ? :)
*April 11, 2015*

**Pre - CALCULUS**

Use Cramer's rule to solve the system. 2x + 4y - z = 32 x - 2y + 2z = -5 5x + y + z = 20 A. {( 1, -9, -6)} B. {( 2, 7, 6)} C. {( 9, 6, 9)} D. {( 1, 9, 6)} d ?
*April 11, 2015*

**pre - CALCULUS**

c ? :)
*April 11, 2015*

**pre - CALCULUS**

Let B = [-1 3 6 -3]. Find -4B. A. [-4 12 24 -12] B. [-3 1 4 -5] C. [4 -12 -24 12] D. [4 3 6 -3] b ?
*April 11, 2015*

**pre - CALCULUS**

thank you guys :)
*April 11, 2015*

**pre - CALCULUS**

Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations. 2x + y = 8 6x + 3y = 24 A. system is inconsistent B. system contains dependent equations b ?
*April 11, 2015*

**pre - CALCULUS**

Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets. x + y = -8 x - y = 14 A. {( 3, -11)} B. {( 3, 11)} C. {(x, y) | x + y = -8} D. ∅ B?
*April 11, 2015*

**pre - CALCULUS**

Complete the following: (a) Use the Leading Coefficient Test to determine the graph's end behavior. (b) Find the x-intercepts. State whether the graph crosses the x-axis or touches the x-axis and turns around at each intercept. Show your work. (c) Find the y-intercept. ...
*April 10, 2015*

**pre - CALCULUS**

lol thank you so much again :)
*April 10, 2015*

**pre - CALCULUS**

Use the compound interest formulas A = Pert and A = P(1 + 𝑟/n)^nt to solve. Suppose that you have $11,000 to invest. Which investment yields the greater return over 10 years: 6.25% compounded continuously or 6.3% compounded semiannually? Show your work.
*April 10, 2015*

**Pre - CALCULUS**

You can do the rest here , Thank you by the way !
*April 10, 2015*

**Pre - CALCULUS**

For the data set shown by the table, a. Create a scatter plot for the data. (You do not need to submit the scatter plot) b. Use the scatter plot to determine whether an exponential function or a logarithmic function is the best choice for modeling the data. Number of Homes ...
*April 10, 2015*

**pre - CALCULUS**

Yeah sorry , I was trying to re post it so it would be easier for you to see it , But i seen that you replied , I replied back
*April 10, 2015*

**pre - CALCULUS**

Begin by graphing the standard absolute value function f(x) = | x |. Then use transformations of this graph to describe the graph the given function. h(x) = 2 | x | + 2
*April 10, 2015*

**pre - CALCULUS**

Thank you !! Can you help with my other two questions i had post ?
*April 10, 2015*

**pre - CALCULUS**

Can you show your work please ? and thats what the question says exactly
*April 10, 2015*

**pre - CALCULUS**

Find the specified vector or scalar. Show your work. u = -4i + 1j and v = 4i + 1j; Find ‖𝑢 + 𝑣‖.
*April 10, 2015*

**pre - CALCULUS**

Thank you
*April 10, 2015*

**pre - CALCULUS**

Find functions f and g so that h(x) = (f ∘ g)(x). h(x) = (6x - 14)8
*April 10, 2015*

**pre - CALCULUS**

Thank you !!!
*April 10, 2015*

**pre - CALCULUS**

Oh so the answer is (1,1) .. How can I describe it ? cause it says "Then use transformations of this graph to describe the graph the given function. "
*April 10, 2015*

**pre - CALCULUS**

when do i stop ? 1,1 ---> 1,6 1,1 1,8 2,2 2,4
*April 10, 2015*

**pre - CALCULUS**

Begin by graphing the standard absolute value function f(x) = | x |. Then use transformations of this graph to describe the graph the given function. h(x) = 2 | x | + 2
*April 10, 2015*

**pre - CALCULUS**

Thank you !!
*April 10, 2015*

**pre - CALCULUS**

Find the reference angle for the given angle. Show your work. -404° my answer is 44 degree , But i don't know how to put my work together..
*April 10, 2015*

**pre - CALCULUS**

Find functions f and g so that h(x) = (f ∘ g)(x). h(x) = (6x - 14)8
*April 10, 2015*

**Pre - CALCULUS**

B^2-4AC= 144-120= 24 x=12+sqrt24 / 12 2*2*2*3 sqrt24=sqrt2*2*2*3= + 2* sqrt6 x=(12+2*2.449)/12 x =(12+√24)/12=1+1/6√ 6 = 1.408
*April 10, 2015*

**Pre - CALCULUS**

6x2 ?
*April 10, 2015*

**Pre - CALCULUS**

Find the x-intercepts (if any) for the graph of the quadratic function. 6x2 +12x+5=0 Give your answers in exact form. Show your work.
*April 10, 2015*

**pre - CALCULUS**

The wind chill factor represents the equivalent air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed. One formula for computing the equivalent temperature is 𝑡 W(t) = {33 − (10.45+10√𝑣...
*April 9, 2015*