NoelGreco
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Retired math, physics and chemistry teacher. I have a private tutoring business via Skype during school months. Happy to help for free during the summer - it keeps me in tune.
I don't like to simply supply an answer; I'm more likely to respond if the questioner has showed some effort in trying to arrive at the answer. What have you tried? Have you drawn a picture? Did you Google the concept?
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Questions Answered
corose:
Group Title
Differentiate.
R(t) = (t + e^t)(6 − sqrt(t))
WILL FAN AND GIVE MEDAL!!
updated 4 hours ago
4 replies
1 Medal
Mathematics
Mfofficer:
Group Title
Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes a…
updated 6 hours ago
3 replies
No Medals Yet
Mathematics
zephyr141:
Group Title
a block slide down a ramp and collides with a mass and continues on with the mass over a length of track with friction.
updated 2 hours ago
6 replies
1 Medal
Mathematics
marceloronniel:
Group Title
find x in sin 3x + sin 2x = 0
updated 4 hours ago
1 reply
No Medals Yet
Mathematics
step8410:
Group Title
Related Rates Problem
A man 6ft tall walks at the rate of 4 ft/sec toward a street light that is 16ft above the ground. At what rate is the…
updated 18 hours ago
1 reply
No Medals Yet
Mathematics
brittlynn:
Group Title
x-intercept of (2x+7)(x-1)
updated yesterday
31 replies
No Medals Yet
Mathematics
TallyGene83:
Group Title
write the trigonometric expression in terms of sine and cosine, cost csct
updated yesterday
1 reply
No Medals Yet
Mathematics
jamienatiour:
Group Title
csc2(π2−x)1+tan2(x) simplify
…
updated yesterday
2 replies
No Medals Yet
Mathematics
zeverson01:
Group Title
In the figure, p || q. You must prove that ∠4 is supplementary to ∠7. What is the reason for the highlighted statement in the proof?
updated yesterday
3 replies
No Medals Yet
Mathematics
MangoWaves:
Group Title
the force acting on a particle varies as shown in figure p7.14
updated 7 days ago
1 reply
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Mathematics
ttuphys:
Group Title
In the circuit shown in the figure below, R1 = 4.00 Ω, R2 = 3.00 Ω, and R3 = 6.00 Ω. Note that three currents are given.
(a) Find the curre…
updated 6 days ago
3 replies
1 Medal
Mathematics
Christina25123:
Group Title
What is the product in simplest form? State any restrictions on the variable.
…
updated 7 days ago
2 replies
No Medals Yet
Mathematics
stewartsmommy:
Group Title
Can someone double check my answer please
---Simplify the rational expression. State any restrictions on the variable.
updated 7 days ago
3 replies
1 Medal
Mathematics
y1066380:
Group Title
Vector
updated 7 days ago
3 replies
1 Medal
Mathematics
bmo0700:
Group Title
*Please Check my answers*
A man is exercising and running into a exercise rubber band with a velocity of 20m/s. This causes him to decele…
updated 7 days ago
6 replies
1 Medal
Mathematics
glamourglory:
Group Title
3. Select the correct reason for statement 3.
Prove: (11m) ∙ 4 + m = 45m
…
updated 9 days ago
4 replies
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Mathematics
Denebel:
Group Title
Why does sin(arcsin(x))=x? And can you write arcsin(x) as 1/(sin x)?
updated 10 days ago
3 replies
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Mathematics
eyitope:
Group Title
When a 58-g tennis ball is served, it accelerates from rest to a speed of 38 m/s. The impact with the racket gives the ball a constant accel…
updated 10 days ago
1 reply
No Medals Yet
Mathematics
kiaranelly:
Group Title
will give out medal!!!! please explain!!!Why is the restoring force in Hooke's law a negative value?
A)The force is opposite the displacemen…
updated 10 days ago
7 replies
1 Medal
Mathematics
manuelagut:
Group Title
Two sides of a triangle have lengths 10 m and 18 m. The angle between them is increasing at a rate of 2°/min. How fast is the length of the …
updated 10 days ago
1 reply
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Mathematics
ijennie534:
Group Title
Can anyone help me with my trig. homework?
updated 10 days ago
2 replies
No Medals Yet
Mathematics
zephyr141:
Group Title
A super ball in-elastically collides with a table.
updated 11 days ago
19 replies
1 Medal
Mathematics
bri789:
Group Title
what is the half-life of strontium-90. explain your answer.
updated 11 days ago
1 reply
No Medals Yet
Mathematics
OwenOVOXO:
Group Title
Who is drake
updated 11 days ago
5 replies
2 Medals
Mathematics
kels15:
Group Title
a ball is thrown vertically upward to a height of 19.6m and allowed to strike the ground. If it loses one fourth of its speed while in conta…
updated 11 days ago
1 reply
No Medals Yet
Mathematics
bri789:
Group Title
what is the half-life of strontium-90. Explain your answer
updated 11 days ago
2 replies
No Medals Yet
Mathematics
turtlescarf:
Group Title
How do I solve the lim of (secx - tanx) as x --> pi/2?
updated 11 days ago
9 replies
2 Medals
Mathematics
samarasamara:
Group Title
Suppose g is a differentiable function, where g(1)=-2 and g'(1)=5. Find d/dx(g(x^2)/(x^2)) when x=1
updated 11 days ago
2 replies
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Mathematics
Golokopitenko_OE:
Group Title
I have a kinematic problem where a=3sin8t. I have no idea how to solve it, since acceleration is not constant? Or is it? It asks me to locat…
updated 6 days ago
6 replies
No Medals Yet
Mathematics
tennis96:
Group Title
Can you find a and b so that the function
f(x)= -tanx if x<pi/4
-a+bx if x>pi/4
…
updated yesterday
4 replies
No Medals Yet
Mathematics
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