lilsis76
Name:
Alexandria Colunga
School:
Mt. San Jacinto Community College.
About:
Let me start by saying, Hello my name is Alexandria, I'm 25
I think I’m a Awesome- downto earth- Superduper-Fun Loving Person.
I love learning, but math is not my strongest subject and I'm in Precalculus :/
PLEASE anyone who reads this, I would really appreciated it. Thank You ALL!
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Questions Asked
lilsis76:
Group Title
The distance between two telephone poles is 50.0 m. When a 1.00 kg bird lands on the telephone wire midway between the poles, the wire sages…
updated 4 days ago
33 replies
2 Medals
Mathematics
lilsis76:
Group Title
HELP!!! The best leaper in the animal kingdom is the puma, which can jump to a height of 12 ft when leaving the ground at an angle of 45°. W…
updated 12 days ago
21 replies
2 Medals
Mathematics
lilsis76:
Group Title
mAJOR help :/
I did this problem, I know I did and I lost my work.
…
updated 16 days ago
26 replies
1 Medal
Mathematics
lilsis76:
Group Title
To qualify for the finals in a racing event, a race car must achieve an average speed of 250 km/h on a track with a total length of 1600m. I…
updated 21 days ago
51 replies
2 Medals
Mathematics
lilsis76:
Group Title
Find instantaneous velocites of Tennis player at:
a) .50s b)2.0s c) 3.0s d)4.5s
I will include a picture and how I did a) I just d…
updated 26 days ago
15 replies
1 Medal
Mathematics
lilsis76:
Group Title
Phy 101
A rectangular plate has a length of (21.3 +/- .2 ) cm and a width of (9.8 +/- .1) cm. Calculate the aea of the plate, including the…
updated one month ago
8 replies
1 Medal
Mathematics
lilsis76:
Group Title
Physics 101 :/ I know.
A rectangular plate has a length of (21.3 +/- 0.2) cm and a width of (9.8 +/- 0.1) cm. Calculate the area of the pl…
updated one month ago
2 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
There are 36 students in a certain geometry class. if 2/3 of the students are boys and 3.4 of the boys are under 6 feet tall, how many boys …
updated one year ago
2 replies
1 Medal
Mathematics
lilsis76:
Group Title
Assume that inflation will increase the prices of everything at a rate of 5 percent a year over the next 10 years. In 3 years, what will be …
updated one year ago
9 replies
1 Medal
Mathematics
lilsis76:
Group Title
what is 90 percent of 80 percent of 70 percent?
I feel like I understand it but I really dont. PLEASE HELP!!!
updated one year ago
7 replies
1 Medal
Mathematics
lilsis76:
Group Title
Calculate the Cell Potential and Delta G^0 for the following reaction that takes place in an Electrochemical cell at 25C.
Al(s) / Al 3+ (aq…
updated one year ago
5 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
Calculate the Cell Potential and Delta G^0 for the following reaction that takes place in an Electrochemical cell at 25C.
Al(s) / Al 3+ (aq…
updated one year ago
5 replies
1 Medal
Mathematics
lilsis76:
Group Title
please help: Phosphorus and Chloride gases combine to produce phosphorous trichloride:
P2 (g) + 3Cl2(g) --> 2PCl3(g)
DELTA G at 298K for t…
updated one year ago
No Medals Yet
Mathematics
lilsis76:
Group Title
Help me understand. Determine the equilibrium constant for the following reaction at 398 K.
3Cu(s) + 2MnO4- (aq) + 8H+(aq) --> 3Cu2+(aq) …
updated one year ago
88 replies
1 Medal
Mathematics
lilsis76:
Group Title
MAJOR HELP!!!Trigonometric equations: Find all solutions of the equation in the interval 0° ≤ x ≤ 360°.
a) sin 3 Theta = -squrt2 / 2
b) 2…
updated one year ago
9 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
Can someone help me understand GRAPHS OF TANGENT and the RECIPROCAL FUNCTION. Please. Because my problem is:
Graph each function, adjust…
updated one year ago
4 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
A solution contains 9.2x10 -3 M in CU 2+ and 0.73 M in LiCN. If the Kf for Cu(CN)4 2- is 1.0x10 25, how much copper ion remains at equilibri…
updated one year ago
1 reply
No Medals Yet
Mathematics
lilsis76:
Group Title
Calculate the sulfide ion concentration in a saturated H2S solution when the pH is 0.5. The concentration of H2S in a saturated H2S solution…
updated one year ago
4 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
How do I figure out the successive tenths in this problem. It does not make any sense.
My homework: Sin (2 + 2pi)
…
updated one year ago
35 replies
1 Medal
Mathematics
lilsis76:
Group Title
Determine the pH and concentration of COv3 ^2- ions in a 0.98 M H2CO3 solution. Carbonic acid is a diprotic acid whose Ka1=4.3e-7 and Ka2=5.…
updated one year ago
2 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
Please Help:
How can I Prove the Following identities:
a) tan^2 theta = sec^2 theta - 1
…
updated one year ago
3 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
Prove the Following identities:
a) tan^2 theta = sec^2 theta - 1
b) cot^2 theta = csc^2 theta -1
…
updated one year ago
5 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
How do I prove:
sinB / 1 + cosB + 1+cosB / sinB = 2cscB
updated one year ago
28 replies
2 Medals
Mathematics
lilsis76:
Group Title
Suppose that your helping a friend with his homework on growth law, N(t)=Noe^kt, and on his paper you see the equation e^k = -.75. How do yo…
updated one year ago
4 replies
1 Medal
Mathematics
lilsis76:
Group Title
Exponential problem: how do I solve this problem?
xe^x -2e^x = 0
updated one year ago
4 replies
1 Medal
Mathematics
lilsis76:
Group Title
Can someone help me understand this and solve it please. Im really confused.
The Reaction rate AB--> A + B is second order in AB and has …
updated one year ago
89 replies
1 Medal
Mathematics
lilsis76:
Group Title
Simplifying expressions. How do I do these?? do I convert the -'s to a division looking expression?
1) log(base 10) (x^2 -16) -3 log(b…
updated one year ago
47 replies
2 Medals
Mathematics
lilsis76:
Group Title
If someone can help me understand, and figure this problem.
If each substance costs the same amount per kilogram (kg), which would be most…
updated one year ago
9 replies
1 Medal
Mathematics
lilsis76:
Group Title
The Perimeter of a rectangle is 12m. Find the dimensions for which the diagonal is as short as possible.
updated one year ago
33 replies
No Medals Yet
Mathematics
lilsis76:
Group Title
What is the largest possible area for a rectangle with a perimeter of 80 cm?
updated one year ago
27 replies
2 Medals
Mathematics
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