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Questions Answered

PaaSolo:
A ball is thrown upwards with a speed of 5m/s from a top 20m high building.
a. how long does it take the ball to hit the ground?
b how fa…
 updated 7 months ago
 17 replies
 No Medals Yet
Mathematics

Data_LG2:
@Psymon only:)
Solve the following system of equations:
1. x + 2y + z =1
…
 updated 7 months ago
 33 replies
 2 Medals
Mathematics

seitys:
Integral of (x4)/(x^25x+6) dx
I got the answer as 2ln abs(x2)  ln abs(x3)
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

broweyebrit:
Which of the following is an SI base unit for measuring temperature?
Celsius
…
 updated one year ago
 1 reply
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Mathematics

kakr:
Prove det(AB)=(det A)(det B) for any nxn matrices A and B.
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

math>philosophy:
How do I reference an {equation} with the same equation number later in the document?
I have:
…
 updated one year ago
 4 replies
 1 Medal
Mathematics

alisa6ft:
object a strikes object b. momentum of object b increases. what happens to the momentum of object a?
 updated one year ago
 9 replies
 No Medals Yet
Mathematics

minnie123:
Help for a MEDAL and FAN!!!!!
A magnetic hockey puck (0.40 kg) hits another hockey puck (0.40 kg) at rest and both travel together to the ri…
 updated one year ago
 2 replies
 2 Medals
Mathematics

CheetahBooks1:
What would the tone, style, and mood of "On Being Brought From Africa to America" be?
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

Module9:
Find the dot product, a • b.
a = 6i + 5j, b = 5i + 4j
…
 updated one year ago
 1 reply
 1 Medal
Mathematics

aebiri2:
The tangent of the line of the curve
y=x^36x^234x9
 updated one year ago
 4 replies
 1 Medal
Mathematics

bcburns:
can anyone help with an interesting probability question?
 updated one year ago
 5 replies
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Mathematics

lirffej:
a stone is dropped from a high altitude and 3 s later another is projected downward with the speed of 150 ft/s. when will the second overtak…
 updated one year ago
 4 replies
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Mathematics

firefighter128:
the sides of a square increase in length at a rate of 3 m/s. what rate is the area of the square changing when the sides are 30 m long?
 updated one year ago
 3 replies
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Mathematics

monroe17:
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis.
y=1/x^4, y=0, x=2, x=6…
 updated one year ago
 25 replies
 2 Medals
Mathematics

jevaughnj:
f(t)=e^(wt) Cos wt
 updated one year ago
 4 replies
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Mathematics

aebiri2:
Write the equation of the tangent of the line to the curve y=x^3+3x8 at (2,6)
 updated one year ago
 2 replies
 2 Medals
Mathematics

kinghall59105:
Ok, i need a second opinion: find the maximum y value on the graph of y=f(x)
f(x)=x^2+8x+10.
…
 updated one year ago
 4 replies
 2 Medals
Mathematics

Vague:
An object is traveling around a circle with a radius of 20 meters. If in 10 seconds a central angle of 1/5 radian is swept out, what is the …
 updated one year ago
 1 reply
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Mathematics

Ldaniel:
Write a Riemann sum and then a definite integral representing the volume of the hemisphere, using the slice shown in the figure below where …
 updated one year ago
 5 replies
 2 Medals
Mathematics

venom936:
A cyclist is riding on a horizontal surface. After sometime he stops pedaling the bike. The decreasing speed of the bike as a function of ti…
 updated one year ago
 8 replies
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Mathematics

mattvlaw:
I have a stupid limit question: if f(t)=(t+1)/(2t+3), then the limit of f as t approaches infinity is 1/2, correct? but the limit of f as t…
 updated one year ago
 8 replies
 1 Medal
Mathematics

Monica.Valdez2:
Integrate cos^8(x)*sin(x)
I already tried (1/9)cos^9(x), but it's not the right answer. Or at least it's not the answer my online homewo…
 updated one year ago
 4 replies
 1 Medal
Mathematics

venom936:
If a graph of a function is given by f(x) = x^3 – 9x, which statement is true?
a f(x) is increasing on the interval [3,0]
…
 updated one year ago
 4 replies
 2 Medals
Mathematics

Fgcbear16:
Suppose {a_n} is a sequence that converges to a number L > 0.What is the limit of {a_n + 1}?
 updated one year ago
 9 replies
 No Medals Yet
Mathematics

venom936:
Medal and Fan award
The speed of sound through air varies with the temperature
(in Fahrenheit) of the air as v = F/3 + 320, where v represe…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

jennychan12:
ln(secx+tanx)+C = integral (secx)dx
I don't really understand why...
 updated one year ago
 12 replies
 2 Medals
Mathematics

Brooke_army:
integral problem
 updated one year ago
 13 replies
 2 Medals
Mathematics

math>philosophy:
Find the values of m for y = mx that enclose a region with y = x / (x^2 + 1) and find the area of this bounded region.
So I set the two f…
 updated one year ago
 12 replies
 2 Medals
Mathematics

overtonka:
Yukiko is trying to decide whether to buy a combo pass or to by a subway pass and then pay the singleride fare when she rides the bus.
A. …
 updated one year ago
 12 replies
 2 Medals
Mathematics
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