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Questions Answered

sfb:
The length of a rectangle is 4 meters less than twice the width. If the area of the rectangle is 336 square meters, find the dimensions.
 updated one month ago
 5 replies
 1 Medal
Mathematics

sfb:
Solve the equation in the complex number system. x^31=0
 updated one month ago
 3 replies
 1 Medal
Mathematics

sfb:
Solve the equation sin(2t)+cost=1/4 on the interval [0, 2pi]. Express answer(s) to three decimal places.
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

sfb:
Can someone please explain how I would do this? Arrange the functions x^1/2, x^2, x^3, and 2^x by relative sizes of their yvalues
a.On (0…
 updated 11 months ago
 11 replies
 1 Medal
Mathematics

sfb:
Really need the answer! Please help! Display a hand sketch of each of following relations; then give the domain and range of each: c. y = b^…
 updated 11 months ago
 1 reply
 No Medals Yet
Mathematics

sfb:
Please answer! Find parametric equations for the curve y = x + 1, x ≥ 0, by using as parameter the distance of the point (x,y) from the orig…
 updated 11 months ago
 9 replies
 2 Medals
Mathematics

sfb:
Please help!
a.r=1cos2(theta)
b. r=8/(3sin(theta)
…
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

sfb:
Simplify, please help!
a.logc C^y
b.N^logy Q
…
 updated 11 months ago
 10 replies
 1 Medal
Mathematics

sfb:
Really need the answer, please help! The polar coordinates (8, 7π/4) represent the Cartesian point
a. (4, 4)
b. (4√2, 4√2)
…
 updated 11 months ago
 15 replies
 1 Medal
Mathematics

sfb:
Compute the difference quotient (P(x+h)P(x))/h. take values of h that get closer and closer to zero to determine the limiting value of this…
 updated 11 months ago
 8 replies
 2 Medals
Mathematics

sfb:
Please help! What can you say about the values of the coefficients a, b, and c in the function f(x)= ax^2+bx+c if the yintercept is 10?
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

sfb:
Please help!
 updated 11 months ago
 5 replies
 No Medals Yet
Mathematics

sfb:
Write the expression ln+ 3x^2/(x+3)^5 in an equivalent form that has no powers, products, or quotients in it. I got ln3x^2−ln(x+3)^5=2ln3x−5…
 updated 11 months ago
 4 replies
 No Medals Yet
Mathematics

sfb:
Write the expression ln+ 3x^2/(x+3)^5 in an equivalent form that has no powers, products, or quotients in it.
 updated 11 months ago
 2 replies
 No Medals Yet
Mathematics

sfb:
Use the computational properties of logarithms to write the expression ln (x – 1)(x + 6) in another form.
 updated 11 months ago
 9 replies
 1 Medal
Mathematics

sfb:
I really need the answer for this problem, please help! If the equation is a parabola state the vertex, focal point (focus), directrix and …
 updated 11 months ago
 6 replies
 No Medals Yet
Mathematics

sfb:
Really need the answer to this, please help! If the equation is an ellipse, state the center point (h, k), the lengths of the major and mino…
 updated 11 months ago
 9 replies
 No Medals Yet
Mathematics

sfb:
Really need the answers to these! Please help! State the center point (h, k), the lengths of the major and minor axis, the vertices, the foc…
 updated 11 months ago
 27 replies
 No Medals Yet
Mathematics

sfb:
State the center point (h, k), the lengths of the major and minor axis, the vertices, the focal points (foci), the eccentricity and graph.
…
 updated 11 months ago
 10 replies
 No Medals Yet
Mathematics

sfb:
State the center point (h, k), the lengths of the major and minor axis, the vertices, the focal points (foci), the eccentricity and graph.
…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

sfb:
State the center point (h, k), the lengths of the major and minor axis, the vertices, the focal points (foci), the eccentricity and graph.
…
 updated 11 months ago
 1 reply
 No Medals Yet
Mathematics

sfb:
Please help! Suppose that Q ( x ) is a quadratic polynomial. Determine the degree of the composition Q o Q(x) . Express the leading coeffici…
 updated 11 months ago
 16 replies
 1 Medal
Mathematics

sfb:
assume a general exponential growth/decay model. A certain population doubles every 15.75 years. How long will it take for it to triple?
 updated 11 months ago
 9 replies
 2 Medals
Mathematics

sfb:
Assume a general exponential growth/decay model. With the situation as in exercise 4, how much of the original 10 pounds remains after 10 m…
 updated 11 months ago
 8 replies
 1 Medal
Mathematics

sfb:
Assume a general exponential growth/decay model. With the situation as in exercise 1, when will the population reach 15,000?
a. 17.17 hour…
 updated 11 months ago
 1 reply
 No Medals Yet
Mathematics

sfb:
assume a general exponential growth/decay model. With the situation as in exercise 1, when will the population reach 15,000?
a. 17.17 hour…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

sfb:
Assume a general exponential growth/decay model. A bacteria culture starts with 500 bacteria and doubles every 3.5 hours. Find an expression…
 updated 11 months ago
 4 replies
 No Medals Yet
Mathematics

sfb:
Solve the equation sin(2t) + cost= ¼ on the interval [0, 2π]. Express answer(s) to three decimal places
 updated 11 months ago
 8 replies
 1 Medal
Mathematics

sfb:
In exercises 19 assume a general exponential growth/decay model. A bacteria culture starts with 500 bacteria and doubles every 3.5 hours. F…
 updated 11 months ago
 1 reply
 No Medals Yet
Mathematics

sfb:
Please help! "Solve the equation sin(2t) + cost= ¼ on the interval [0, 2π]." I graphed y=sin(2t)+cost and then y=1/4, but they are coming ou…
 updated 11 months ago
 6 replies
 No Medals Yet
Mathematics
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