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Question 1033826: larry mitchell invested part of his 14,000 advance at 7% annual simple interest and the rest at 3% annual simple interest. if his total yearly interest from both accounts was $740 find the amount invested at each rate?
Click here to see answer by Boreal(15235)

Question 1033858: Which of the following equations is equal to the rational expression when x is not equal to 5?
x^2-25/x-5
A. X+5/x-5
B. X+5
C. X-5
D. 1/x+5
Click here to see answer by macston(5194)

Question 1034089: If 126 people attend a concert and tickets for adults cost $3 while tickets for children cost $2.25 and total receipts for the concert was $343.5, how many of each went to the concert?

Click here to see answer by josmiceli(19441)

Question 1034207: Thor invests some money in an account earning 8% interest, compounded continuously. After how many years will he double his investment? [Use the formla A = Pert and round answer to the nearest tenth.]
Click here to see answer by fractalier(6550)

Question 1034193: Joe is going to put wallpaper on all walls of the bedroom. here is the formula

R=2L+2w
________
2.5
R = wallpapers needed L=Length of room(m)W=width of room(m)
The bedroom has a length of 5.6m, A width of 4.8
How many rolls of wallpaper does joe need to buy, explain why?

Click here to see answer by fractalier(6550)

Question 1034250: let g(x) = X(3x-9)^3, find dg/dx
Click here to see answer by josgarithmetic(39617)

Question 1034251: let f(x) = x/^3square root of x^2 + 4, find f'(x)
Click here to see answer by Alan3354(69443)

Question 1034249: let g(S) = square root of s(4-S^2) find g'(s)
Click here to see answer by stanbon(75887)

Question 1034248: Given f(X) = x^3 + 3x + 2/ X^2 - 1, find f'(X)
Click here to see answer by ikleyn(52781)

Question 1034247: Given g(t) = t^2 + 2/ 2t - 7, find g'(t)
Click here to see answer by ikleyn(52781)

Question 1034306: if the numerator of a fraction is decreased by 1,its value become 1/3.if the denominator of it is increased by 3,the value becomes 1/3.what is the fraction?
Click here to see answer by stanbon(75887)

Question 1034319: a balloon is rising at the rate of 12 feet/seconds and at the same time is being blown horizontally by a wind at 18 feet/seconds. find the angle its path makes with the vertical and determine its actual velocity.
Click here to see answer by Alan3354(69443)

Question 1034335: a river runs directly east at 1.28 miles hour. if a swimmer can swim at the rate of 1.75 miles hour in still water and he starts swimming north directly across the river, in what direction is he actually moving? where does he hit the opposite bank if the river is one mile wide?
In which direction should the swimmer head in order to reach a point directly across the river?
Click here to see answer by Boreal(15235)

Question 1034337: The difference of "a" and "x"

Click here to see answer by Alan3354(69443)

Question 1034341: find the length and direction for each of the vector if
a. x=3, y=4
Click here to see answer by fractalier(6550)

Question 1034334: a river runs directly east at 1.28 miles hour. if a swimmer can swim at the rate of 1.75 miles hour in still water and he starts swimming north directly across the river, in what direction is he actually moving? where does he hit the opposite bank if the river is one mile wide?
Click here to see answer by Alan3354(69443)

Question 1034317: Please help me solve this question
Solve the system; logx base a.log ( xyz ) base a = 48
Logy base a.log ( xyz ) base a = 12, a > 0, a is not = to 1
Logz base a.log ( xyz ) base a = 84
Click here to see answer by ikleyn(52781)

Question 1034261: Consider an investor with a portfolio totaling $500000 that is invested in certificates of deposit, municipal bonds, blue-chip stocks, and growth or speculative stocks. The certificates of deposit pay 3% annually, and the municipal bonds pay 5% annually. Over a five-year period, the investor expects the blue-chip stocks to return 8% annually and the growth stocks to return 10% annually. The investor wants a combined annual return of 5% and also wants to have only one-fourth of the portfolio invested in stocks. How much is invested in each type of investment? The answers in the back of the book are 187500+s in certificates of deposit, 187500-s in municipal bonds, and 125000-s where s is in growth stocks. I'm not sure as how they got to these answers.
Click here to see answer by addingup(3677)

Question 1034377: Write the standard form of the equation of the circle that is tangent to the y-axis and has its center at (3, -2).
(x - 3)� + (y + 2)� = 9
(x + 3)� + (y - 2)� = 9
(x - 3)� + (y + 2)� = 4
(x + 2)� + (y - 3)� = 4
Click here to see answer by josgarithmetic(39617)

Question 1034381: Find parametric equations for the rectangular equation x� + y� - 36 = 0.
x = cos(6t), y = sin(6t), 0 < t < 2π
x = 5 cos(t), y = 5 sin(t), 0 < t < 2π
x = 36 cos(t), y = 36 sin(t), 0 < t < 2π
x = 6 cos(t), y = 6 sin(t), 0 < t < 2π
Click here to see answer by ikleyn(52781)

Question 1034380: Find parametric equations for the rectangular equation x� + y� = 4.
x = cos(2t), y = sin(2t), 0� < t < 360�
x = 4 cos(t), y = 4 sin(t), 0� < t < 360�
x = 2 cos(t), y = 2 sin(t), 0� < t < 360�
x = 16 cos(t), y = 16 sin(t), 0� < t < 360�
Click here to see answer by ikleyn(52781)

Question 1034379: Write the equation of the conic section x� + y� = 4 after a rotation of 45� about the origin.
(x')� - 2x'y' + (y')� = 4
(x')� + (y')� = 16
(x')� + 2x'y' + (y')� = 16
(x')� + (y')� = 4
Click here to see answer by ikleyn(52781)

Question 1034318: Please help me solve this question
Solve- a raised to the power of log base b( log N base b) / log a base b )
Click here to see answer by Alan3354(69443)

Question 1034378: Find the rectangular equation of the curve whose parametric equations are x = -2 cos(t) and y = 2 sin(t), 0� < t < 360�.
y� - x� = 1
x� + y� = 4
y� - x� = 4
x� + y� = 1
Click here to see answer by ikleyn(52781)

Question 1034385: If f(x) = 2x^2 - 1 and h(x) = 18x^4 - 24x^2 + 7, determine a formula for g(x) such that f ∘ g = h
Click here to see answer by stanbon(75887)

Question 1034390: Write the standard form of the equation of the hyperbola for which a = 5, b = 6, the transverse axis is horizontal, and the center is at the origin.
x�/36 - y�/25 = 1
x�/25 - y�/36 = 1
y�/36 - x�/25 = 1
y�/25 - x�/36 = 1
Click here to see answer by robertb(5830)

Question 1034393: For 3x� + 2xy + y� = 1, find Θ, the angle of rotation about the origin, to the nearest degree.
Click here to see answer by robertb(5830)

Question 1034392: For 3x� + xy + 3y� = 1, find Θ, the angle of rotation about the origin, to the nearest degree.

Click here to see answer by robertb(5830)

Question 1033770: The area of a parallelogram is 'p' sq. cm an its height is 'q' cm . A second parallelogram has equal area but its base is �r� cm more than that of the first. Obtain an expression in terms of p.q.r for the height �h� of the second parallelogram
Click here to see answer by robertb(5830)

Question 1033624: Integrate each of the following ecpressions with respect to x.
A) (3X-2)^2
B) (X+4)(2X-5)/X^4
C) -3/X^3
Click here to see answer by robertb(5830)

Question 1034402: a 2500 pound automobiles rests on a 12 degrees hill, what is the brake force required to hold the automobile at rest?
Click here to see answer by ikleyn(52781)

Question 1034436: The circle with center at O is circumscribed about the triangle and OD is drawn perpendicular to BC. What is the relation of BOD to a? Using the right triangle BDO, prove sin a = a/2R. with the necessary additional construction, prove the law of sines.
Click here to see answer by ikleyn(52781)

Question 1034431: In the right triangle ABC, with a= 30 degrees, AB= 2. D is chosen on AC so that DC=BC, and from D a line is drawn perpendicular to AB, meeting AB at K. Show DBK = 15degrees and by finding the lengths of the various lines.
Click here to see answer by ikleyn(52781)

Question 1034409: if a 225 pound box is resting on a sloping ramp, two forces are "at work" on the box as a result of its weight. one is the force f2 perpendicular to the ramp and the other, a friction force f1, is parallel to the ramp. find the sizes of these two forces if the ramp slopes at an angle of 15 degrees.
Click here to see answer by ikleyn(52781)

Question 1034456: given f(x) = (x^3 + 3x + 2)/(x^2-1), find f'(x)
Click here to see answer by ikleyn(52781)

Question 1034457: Let g(x)n = x(3x-9)^3, find (dg/dx)
Click here to see answer by Boreal(15235)

Question 1034455: g(t) = (t^2 + 2)/ (2t-7), find g'(t)
Click here to see answer by Boreal(15235)

Question 1034480:
Click here to see answer by ikleyn(52781)

Question 1034454: Let g(s) = (square root of s )(4-s^2), find g's
Click here to see answer by Alan3354(69443)

Question 1034458: Let F(x) = n (x)/(^3 square root of x^2 + 4), find f'(x)
Click here to see answer by Alan3354(69443)

Question 1034511: given g(t) -(T^2 + 2)/(2t-7), find g'(s)
Click here to see answer by stanbon(75887)

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