Thursday
November 27, 2014

Posts by Chol


Total # Posts: 76

Math
Shantle and Kwamie are planning to buy their first home. Although they are excited about the prospect of being homeowners, they are also a little frightened. A mortgage payment for the next 30 years sounds like a huge commitment. They visited a few developments and scanned the...
July 9, 2014

Math
Find the monthly payment. Mortgage amount Annual percentage rate 2. $146,800 5.25% 30 years 4. $113,400 5% 15 years 6. Find the interest paid the mortgage in exercise 2. 8. Find the total interest paid for the mortgage in exercise 4.
July 7, 2014

Math
In interviewing November's statement she notices that her beginning balance was $600 and that she made a $200 payment on November 10. She also charged purchases of $80 on November, 5, $100 on November 15, and $50 on November 30. She paid $5.27 in interest the month before...
July 7, 2014

Math
If you purchase a fishing boat for 18 monthly payments of $106 and an interest charge of $238, how much is the refund after 10 payments
July 7, 2014

Math
Find the discount (ordinary interest) and proceeds on a promissory note for $2,000 made by Barbara Jones on February 10, 2007, and payable to First State Bank on August 10, 2007, with a discount rate of 9%.
July 6, 2014

Math
Find the annual percentage rate on a loan of $1,500 for 18 months if the loan requires $190 interest and is repaid monthly.
July 6, 2014

Math
Malinda Levi borrows $12,000 on a 9.5% , 90 day note. On the 30th day, Malinda pays $4,000 on the note. If ordinary interest is applied, what is Malinda’s adjusted principal after the partial payment? What is the adjusted balance due at maturity?
July 6, 2014

Math
The finance charge on a copier was $1,778. The loan for copier was to be paid in 18 monthly payments. Find the finance charge refund if it is paid off in eight months.
July 6, 2014

Math
Alice Dubois was charged $455 in finance charges on a loan for 15 months. Find the finance charge refund if she pays off the loan in full after 10 payments.
July 6, 2014

math
Real Estate an office building purchased for $1, 200,000 is appreciating because of rising property values in the city. At the end of each year its value is 105% of its value at the end of the previous year. a. Use a recursive formula to determine what the value of the ...
April 15, 2014

algebra for business
(a) R = 15p (b) C = 55 + 4p (c) Revenue [5*15]= $75 Variable cost [5*4]= $20 contribution 55 fixed cost -55 Net profit. 0 (d) 15p = 55 + 4p 11p = 55 p = 5 pizzas break-even Profit = revenue - cost 15(500)-4(500)-55 = $5445 Sell 500 pizzas $5445 (e) profit = 15p -55-4p 1100 = ...
August 11, 2013

Math
2x-1 -2/(4x+1)
August 7, 2013

algebra
FV = 2800e^(.055*12) FV = 2800e^(.66) = 5417.42
August 6, 2013

statistics
Yes there is enough evidence to support---- T = (16-15.6)/(.3/sqrt(8)) df = n-1 df = 8-1 = 7 critical t value = 1.895
August 2, 2013

algebra
2.1(-1.2x+2.3y-1.1) = -2.52x + 4.83y -2.31
July 29, 2013

Probability
M C. D. Total Ma. 3. 6. 2. 11 Fe. 7. 4. 8. 19 Tot. 10. 10. 10. 30 P(Chim or Dog) = P(Chim) + P(Dog) -P(0) 10/30 + 10/30 -0 = 20/30 = 2/3
July 29, 2013

Probability
P(Casper) = .4 P(Denver) = .3 P(Casper u Denver) =0.27 P(Casper|Denver) P(Casper u Denver)/ P(Denver) = .27/.3 = 0.9
July 29, 2013

Math- averages
Three weeks is 7*3= 21 cars In week four is 11* 1 = 11 cars Add/n (21+11)/4 32/4 = 8
July 29, 2013

bussiness math
Let Angela needs n flower bulbs for an area measuring 230 square inches. n/230= 1/5 n= 230/5=46 Anglela needs 46 flower bulbs
July 29, 2013

statistics
z = (186.3-200)/(30/sqrt(9)) z = -1.37, you can use your table
July 29, 2013

Math Statistics
a. The standard error of the sample mean is 4.564/sqrt(36) = 0.7607 b. yes The mother's mean age student birth lie in interval (28.358, 30.928)
July 29, 2013

Math
315.10 -239.95 = $75.15
July 28, 2013

Math
a= x b = x+7 c = 13 x^2 + (x+7)^2 = 13^2 = x^2 + x^2 +7x +7x + 49 = 169 = 2x^2 + 14x + 49 = 169 = 2x^2 + 14x + 49 -169= 169-169 = 2x^2 + 14x -120 = 0 = x^2 +7x -60 = 0 (x -5)(x+12)= 0 x = 5 x = -12 ignored when it is negative a= 5 b = 12
July 27, 2013

geometry
For an inscribed n-gon, circle radius is r A = (r^2 *n sin(2pi/n))/2 For the circumscribed n-gon A = r^2 *n tan(pi/n)
July 27, 2013

math
(x+5)(x-7) = X^2-7x+5x-35 = x^2-2x-35
July 27, 2013

math
x^2+x(x-5)-x+7 = x^2 +x^2-5x-x+7 = 2x^2-6x+7
July 27, 2013

Math-probability
Down-hill =20% Cross-country =15% In down-hill and cross-country (20%)(40%) = 0.08
July 27, 2013

statistics
z = (300-300)/(39/sqrt(700)) z = (378-300)/(39/sqrt(700))
July 25, 2013

STATISTICS
There are 12C3 = 220 ways, group of 3 people from 12 There are 9C3 = 84 ways, none of the three oldest. 220-84 = 136 groups where at least one member is 3 oldest. 136/220 = 0..618
July 24, 2013

Algebra world problem
Let l be 2x -7 w = x A = lw 72 = (2x-7)x 72 = 2x^2 -7x 2x^2 -7x -72 =0 (2x+9)(x-8) = 0 x -8 = 0 x = 8 l = 2x-7 l = 2(8) -7 l = 16-7= 9 L = 9 m and w =8 m
July 23, 2013

Accounting
Direct labor rate variance (AR-SR)AH (11.6-12)(7500) = $ 3,000 favorable
July 23, 2013

algebra
=24x^6/4x^3- 12^3/4x^3 = 6x^3. -3
July 22, 2013

math
I = prt I = 6510(0.0325)(5)
July 22, 2013

Accounting
Past year units 6552000/(600-444) = 42000 units Coming year units 655200/ (600-450) = 43680 units
July 20, 2013

Accounting
Margin units = 32-20 = 12 Fixed cost = 240000 break-even = 240000/12 = 20000 Margin units = 36-20 = 16 Fixed cost = 240000 New break-even = 240000/16 = 15000 20000 units and 15000 units
July 20, 2013

Accounting
60000/(105-70) 60000/35 = 1714.29 0r 1714 units
July 20, 2013

Calculus
f(x) = 3e^x -2x^2 + c 10 = 3e^0 -2(0)^2+ c 10 =3-0+ c 7= c F(x) = 3e^x -2x^2 + 7
July 19, 2013

alg2 check
-2 = (-2/3)(-6) + b -2 = 4 + b -2-4 = 4-4 +b -6 = b m = -2/3 y = mx + b y = -2x/3 +(-6) y = -2x/3 - 6
July 18, 2013

alg2 check
y = mx + b m = -2, b = -6 y = -2x +(-6) y= -2x-6
July 18, 2013

math
If 3x^y 2. -24x^2+y
July 18, 2013

math
1. 1/x^2 y
July 18, 2013

algebra
= 2x -y +14x^2-7xy +10x = 14x^2 +12x -y -7xy
July 18, 2013

math
= x + 2y + 6x^2-12xy+8x = 6x^2 +9x + 2y -12xy
July 18, 2013

math
=(-2)^2 y^1 * (3x^3) = 4(3)y^2 x^3 =12y^2 x^3
July 18, 2013

Math - MAD
mean = (6+15+7+14+11+ 13 + 15 +15)/8 = 12 Median: arranged number from smallest to largest 6 7 11 13 14 15 15 15 Median: (13+14)/2 = 27/2 =13.5 Mode: 15
July 17, 2013

algebra
=3(8x^2 +14x +5) =3(2x + 1)(4x +5)
July 17, 2013

algebra
3(8x^2 + 14x +5) = 3(2x + 1)(4x + 5)
July 17, 2013

algebra
-(6x-1)(36x^2 +6x +1)
July 17, 2013

algebra
=5√3 - √49*2 + √16*3 + 6√2 =5√3 -7 √2+ 4√3+ 6√2 = 9√3 - √2
July 16, 2013

algebra
5√3 -7 √2+ 4√3+ 6√2 9√3 - √2
July 16, 2013

algebra
√25*2 = 5√2
July 16, 2013

Math
y = -x +2 x^2 + (-x +2)^2 = 34 x ^2 + x^2 -2x -2x +4 = 34 2x^2 -4x + 4 = 34 2x^ -4x + 4 -34 = 34-34 2x^2 -4x - 30 = 0 2(x^2 -2x -15) =0 2(x-5)(x+3) =0 x -5 =0 x =5 x+ 3 = 0 x =-3 y = -3 ,5 (5,-3), (-3,5)
July 16, 2013

Accounting
Break-even = 250000/(125-73) = 250000/52 = 4808 units
July 14, 2013

Accounting
(300000-30000)/(31-22) = 30000 units
July 14, 2013

alg2 help
16x^2 /9y^2
July 14, 2013

Accounting
12500
July 14, 2013

Accounting
Income from operation $78,000
July 14, 2013

Accounting
a) Sales =$ 1,800,000 Variable costs = 1,080,000 Contribution margin = $720,000 contribution margin ratio = 720000/1800000 = 40% b) sales = $900,000 contribution margin ratio 32% contribution margin = 288000 less fixed cost = 210000 Income from operation = $7800
July 14, 2013

Accounting
a) unit margin =110-80 = 30 Fixed cost =345000 Break-even = 345000/30 = 11500 units b) new break-even = 345000/40 = 8625 units
July 14, 2013

Accounting
a) unit margin = 80-55 =25 break-even = 740000/25 = 29600 units b) (740000+140000)/25 = 880000/25 = 35200
July 14, 2013

MATH
y-intercept of the linear regression is 2.07.
July 11, 2013

alg2 check?
1. (2)(3)x^1+3 = 6x^4 2. (4)^3 x^1*3 y^2*3 = 64x^3y^6
July 11, 2013

Calculus
y' = -2x*e^(-x^2). At x = 2, that the slope of the tangent line is: y' = (-2)(2)e^[-(2)^2] = -4e^(-4) = -4/e^4. tangent line is: y - 1/e^4 = (-4/e^4)(x - 2) y = (-4/e^4)x + 9/e^4.
July 11, 2013

Calculus
f'(x) =e^x -(e^-x))/2
July 11, 2013

math
800(1.05)^40
July 11, 2013

algebra 2
y = kxz 8 = k(-2)(4) 8 = -8k k = -1 y = -3x 12 = -3x x = -4 Answer is A
July 11, 2013

statistics
z = (65-76)/6 z = -1.83 z = (90-76)/6 z = 2.33
July 11, 2013

Math
(2/25 +13/25) - (2/5 - 14/15) = 15/25 - (-8/15) = 15/25 + 8/15 (45+40)/75 = 85/75 = 17/15
July 8, 2013

algebra
r = .62(216)^1/3 r = .62(216)^1/3 r = .62*6 = 3.72
July 7, 2013

math
Given, Age of manoj after 12 years = 3 × Age of Manoj 4 years ago (x + 12 ) = 3 (x – 4) x + 12 = 3x – 12 x -x + 12 = 3x-x -12 12 = 2x -12 12 + 12 = 2x -12 + 12 2x = 24 2x/2 = 24/2 x = 12 Thus, present age of manoj is 12 years.
July 7, 2013

statistics
78.4-+ 1.96*11/sqrt(36)) (74.81, 81.99)
July 6, 2013

Math
x + r = 90 x + r- r = 90 -r x = 90-r
July 6, 2013

math
A = 73000(1+ .08/2)^11*2 A = 73000(1.04)^22
July 6, 2013

math
Total = 55 + 5 + 20 = 80 P( green) + P( yellow) - P(green and yellow) ( 55 + 5)/80 -0 P = 60/80 = .75
July 6, 2013

algebra
P(A) + P(B) - P(A and B) 35/90 + 40/90 -10/90 = 13/18
July 6, 2013

algebra2
4x^2 -2x + 11 -40/x+4
June 2, 2013

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