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
Lorn:
Group Title
Please help we know he does block the punt but how do we do the rest??
11. A punter kicks a football. Its height, h, in meters, t seconds a…
updated 16 hours ago
3 replies
No Medals Yet
Mathematics
Hannah052291:
Group Title
How do I factor: 3x^2+10x-21
updated 17 hours ago
3 replies
No Medals Yet
Mathematics
abey:
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The least common multiple of 20, 24, and 45 is _____.
…
updated 17 hours ago
4 replies
No Medals Yet
Mathematics
sara_lee101:
Group Title
Solve the following system of equations:
-2x + y = 1
…
updated 17 hours ago
9 replies
2 Medals
Mathematics
vita955:
Group Title
Can someone explain the law of conservation of energy?give some examples? medal and fan :)
updated 17 hours ago
3 replies
No Medals Yet
Mathematics
precalchelp:
Group Title
2cos^2x + 3cosx = 2
solve for x with work
updated yesterday
2 replies
1 Medal
Mathematics
Seniorrrrrrrr:
Group Title
Can an object have a southward velocity and a northward acceleration?
updated yesterday
1 reply
No Medals Yet
Mathematics
Fudgewwww:
Group Title
One root of a third degree polynomial function f(x) is –5 + 2i. Which statement describes the number and nature of all roots for this functi…
updated yesterday
6 replies
1 Medal
Mathematics
loinducoeur:
Group Title
A body of mass 3.0kg slides down a plane which is inclined at 30degrees to the horizontal. Find the acceleration of the body if the plane is…
updated yesterday
2 replies
1 Medal
Mathematics
jamie1522:
Group Title
Medal will be awarded!
Two blocks are connected by a string, as shown in the figure. The smooth inclined surface makes an angle of θ = 38° w…
updated yesterday
1 reply
No Medals Yet
Mathematics
haleyelizabeth2017:
Group Title
What is the equation, in standard form, of a parabola that contains the following points?
(–2, –20), (0, –4), (4, –20)
updated 2 days ago
63 replies
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Mathematics
polarpenguin:
Group Title
Writing a function as a composite of other functions. Questions e and d? Stuck!!
updated 2 days ago
11 replies
1 Medal
Mathematics
corose:
Group Title
Differentiate.
R(t) = (t + e^t)(6 − sqrt(t))
WILL FAN AND GIVE MEDAL!!
updated 3 days ago
4 replies
1 Medal
Mathematics
Mfofficer:
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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 3 days ago
3 replies
No Medals Yet
Mathematics
zephyr141:
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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 3 days ago
6 replies
1 Medal
Mathematics
marceloronniel:
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find x in sin 3x + sin 2x = 0
updated 3 days ago
1 reply
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Mathematics
step8410:
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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 3 days ago
2 replies
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Mathematics
brittlynn:
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x-intercept of (2x+7)(x-1)
updated 4 days ago
31 replies
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Mathematics
TallyGene83:
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write the trigonometric expression in terms of sine and cosine, cost csct
updated 4 days ago
1 reply
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Mathematics
jamienatiour:
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csc2(π2−x)1+tan2(x) simplify
…
updated 4 days ago
2 replies
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Mathematics
zeverson01:
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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 4 days ago
3 replies
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Mathematics
MangoWaves:
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the force acting on a particle varies as shown in figure p7.14
updated 10 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 10 days ago
3 replies
1 Medal
Mathematics
Christina25123:
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What is the product in simplest form? State any restrictions on the variable.
…
updated 10 days ago
2 replies
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Mathematics
stewartsmommy:
Group Title
Can someone double check my answer please
---Simplify the rational expression. State any restrictions on the variable.
updated 10 days ago
3 replies
1 Medal
Mathematics
y1066380:
Group Title
Vector
updated 10 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 10 days ago
6 replies
1 Medal
Mathematics
glamourglory:
Group Title
3. Select the correct reason for statement 3.
Prove: (11m) ∙ 4 + m = 45m
…
updated 13 days ago
4 replies
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Mathematics
Denebel:
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Why does sin(arcsin(x))=x? And can you write arcsin(x) as 1/(sin x)?
updated 13 days ago
3 replies
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Mathematics
eyitope:
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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 13 days ago
1 reply
No Medals Yet
Mathematics
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